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You searched for: Publication year rev 7981-2019 Remove constraint Publication year rev: 7981-2019 Subject term gonads Remove constraint Subject term: gonads Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
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1. 48 Different chromatin accessibility in murine male and female inner cell mass

Author:
E. Ruggeri; E. Grow; X. Liu; A. Donjacour; P. Rinaudo
Source:
Reproduction, fertility, and development 2019 v.31 no.1 pp. 150
ISSN:
1031-3613
Subject:
DNA methylation; DNA replication; Y chromosome; adulthood; amino acids; antigens; apoptosis; blastocyst; chromatin; complement; demethylation; epigenetics; females; genes; gonads; histones; in vitro fertilization; males; metabolites; mice; mitochondria; oxygen; peptides; phenotype; polymerase chain reaction; sex determination; statistical analysis; uterus
Abstract:
... Previous research has shown that embryos conceived by IVF show a sexual dimorphic phenotype and different metabolite expression into adulthood. Interestingly, female embryos have a higher apoptotic rate and are more vulnerable to environmental stressors. Our prior studies have examined DNA methylation changes in male and female embryos; however, limited knowledge is available with regard to chroma ...
DOI:
10.1071/RDv31n1Ab48

2. A Reproductive Histological Analysis of Rangia cuneata (Venerida: Mactridae): Effects of Abiotic Factors

Author:
Brandon D. Drescher; Nancy J. Brown-Peterson; Jennifer M. Walker
Source:
American malacological bulletin 2019 v.37 no.1 pp. 12-20
ISSN:
2162-2698
Subject:
Mactridae; clams; ecosystems; environmental factors; estuaries; gametogenesis; germ cells; gonads; histology; quantitative analysis; salinity; spawning; water temperature; Mississippi
Abstract:
... Understanding the relative times of gametogenesis and spawning of gametes in bivalves provides crucial insight on how a species may be influenced by environmental factors, in addition to the potential impacts a species of bivalve has on the ecosystem as a whole. The focus of this study was on gametogenesis and times of spawning in Rangia cuneata (G. B. Sowerby I, 1831), an infaunal estuarine bival ...
DOI:
10.4003/006.037.0102

3. A hybrid lineage derived from hybridization of Carassius cuvieri and Carassius auratus red var. and a new type of improved fish obtained by back-crossing

Author:
Qingfeng Liu; Junmei Liu; Qiuli Liang; Yanhua Qi; Min Tao; Chun Zhang; Qinbo Qin; Rurong Zhao; Bo Chen; Shaojun Liu
Source:
Aquaculture 2019 v.505 pp. 173-182
ISSN:
0044-8486
Subject:
Carassius auratus; Carassius cuvieri; backcrossing; chromosome number; chromosomes; diploidy; eggs; females; fish; gonads; head; heterozygosity; hybrids; inheritance (genetics); interspecific hybridization; males; mutants; parents; ribosomal DNA; spermatozoa
Abstract:
... Hybridization is an important technique and is widely used in fish genetic breeding; this technique prevents variety degeneration and improves variety. In this research, we obtained a hybrid lineage (WR-F1-F4) by interspecific hybridization derived from female white crucian carp (Carassius cuvieri, WCC) and male red crucian carp (Carassius auratus red var., RCC), and a new type of improved fish (W ...
DOI:
10.1016/j.aquaculture.2019.02.056

4. A natural antisense transcript of the fem-1 gene was found expressed in female gonads during the characterization, expression profile, and cellular localization of the fem-1 gene in Pacific white shrimp Penaeus vannamei

Author:
Pavel Galindo-Torres; Claudia Ventura-López; Raúl Llera-Herrera; Ana M. Ibarra
Source:
Gene 2019 v.706 pp. 19-31
ISSN:
0378-1119
Subject:
Caenorhabditis elegans; Litopenaeus vannamei; adults; amino acids; brain; complementary DNA; embryogenesis; females; genes; gonads; hepatopancreas; in situ hybridization; intestines; larval development; males; messenger RNA; oocytes; quantitative polymerase chain reaction; reverse transcriptase polymerase chain reaction; sexual development; shrimp; spermatogonia
Abstract:
... The fem-1 gene in Caenorhabditis elegans is involved in sex differentiation; it is specifically required for all aspects of male development. In this study, the full-length cDNA of the fem-1 (Pvfem-1) gene was isolated from the Pacific whiteleg shrimp Penaeus vannamei. The Pvfem-1 transcript is 3778 nt long and encodes a putative protein (PvFEM-1) of 638 amino acids that presented eight ankyrin re ...
DOI:
10.1016/j.gene.2019.04.066

5. A preliminary experiment regarding the natural induction of gonadal development in female Japanese eels without hormone treatment

Author:
Naomi Mikawa; Yoshiaki Yamada; Noriyuki Horie; Akihiro Okamura; Tomoko Utoh; Satoru Tanaka; Katsumi Tsukamoto
Source:
Aquaculture research 2019 v.50 no.12 pp. 3749-3754
ISSN:
1355-557X
Subject:
Anguilla anguilla; Anguilla japonica; cold; eel; females; gonads; oocytes; water temperature
Abstract:
... To test whether gonadal development of female eels could be promoted without any exogenous hormone treatments, we observed the effect of water temperature manipulation. After 3–5 months of water temperature treatments, three silver eels showed higher gonadosomatic indices (GSI). In particular, one eel in the 5–15°C fluctuating temperature treatment group (5°C daytime and 15°C night‐time) had the h ...
DOI:
10.1111/are.14337

6. Abdominal puncture as a new method to determine sex in tuviras (Gymnotus sp.)

Author:
Marco Antonio Thomaz; Antonio Cleber da Silva Camargo; Bruno Leite dos Anjos; Carlos Frederico Ceccon Lanes
Source:
Aquaculture research 2019 v.50 no.6 pp. 1651-1657
ISSN:
1355-557X
Subject:
Gymnotus; adults; fish; gonads; head; intravenous injection; sex determination analysis; sexual dimorphism; sport fishing; survival rate
Abstract:
... Tuviras (Gymnotus sp.) are a small fish widely used as live bait in sport fishing. Interest in its culture has increased, but there are still several bottlenecks that need to be solved. For example, the process of sexing in tuviras is difficult since they do not present sexual dimorphism. Thus, the aim of this study was to verify if an abdominal puncture could be used as an inexpensive, fast and r ...
DOI:
10.1111/are.14046

7. Aberrant gene expression profiles in Mediterranean sea urchin reproductive tissues after metal exposures

Author:
Marilena Di Natale; Carmelo Bennici; Girolama Biondo; Tiziana Masullo; Calogera Monastero; Marcello Tagliavia; Marco Torri; Salvatore Costa; Maria Antonietta Ragusa; Angela Cuttitta; Aldo Nicosia
Source:
Chemosphere 2019 v.216 pp. 48-58
ISSN:
0045-6535
Subject:
Echinoidea; adults; aquatic organisms; coasts; epigenetics; gametogenesis; gene expression; genes; gonads; messenger RNA; metals; phenotype; pollutants; progeny; stress response; tissues; toxicity; transcription (genetics); Mediterranean Sea
Abstract:
... Marine organisms are simultaneously exposed to numerous pollutants, among which metals probably represent the most abundant in marine environments.In order to evaluate the effects of metal exposure at molecular level in reproductive tissues, we profiled the sea urchin transcriptional response after non-lethal exposures using pathway-focused mRNA expression analyses.Herein, we show that exposures t ...
DOI:
10.1016/j.chemosphere.2018.10.137

8. Acute Septicemia in a Hermaphrodite Veiled Chameleon (Chamaeleo calyptratus) Infected with Mycobacterium chelonae Chemovar niacinogenes

Author:
Shannon A. Martinson; Chantal Skjonsberg; Catherine Anne Muckle; Jonathan Spears
Source:
Journal of herpetological medicine and surgery 2019 v.29 no.1-2 pp. 21-26
ISSN:
1529-9651
Subject:
Bacilli; Chamaeleo; Mycobacterium chelonae; bacteria; breathing; chemotypes; discoloration; euthanasia; fibrin; gonads; hermaphroditism; histopathology; liver; lungs; males; medicine; necropsy; septicemia; sequence analysis; surgery
Abstract:
... A 2-yr-old male veiled chameleon (Chamaeleo calyptratus) was presented for open-mouthed breathing, lethargy, and progressive deterioration culminating in euthanasia. Postmortem examination revealed red discoloration of the lungs, liver, and coelomic fat pads and mild fluid accumulation in the coelom. Histopathological evaluation revealed acute septicemia characterized by numerous intravascular aci ...
DOI:
10.5818/X.XXX.XXXX10.5818/18-04-150.1

9. Age, growth, and age at maturity of bonefish (Albula species) among Cuban habitats

Author:
Jacob J. Rennert; Jonathan M. Shenker; Jorge A. Angulo-Valdés; Aaron J. Adams
Source:
Environmental biology of fishes 2019 v.102 no.2 pp. 253-265
ISSN:
0378-1909
Subject:
Albula vulpes; coasts; females; fish; genetic testing; gonads; growth models; habitats; hybrids; males; markets; otoliths; sexual maturity; sport fishing; Cuba; Florida
Abstract:
... Bonefish (Albula spp.) are a prized sportfish among avid anglers worldwide. Two morphologically indistinguishable species of bonefish (Albula vulpes and Albula goreensis) occur in coastal areas of the tropical western Atlantic. Growth rates of A. vulpes, which supports an economically important sport fishery, differ among locations where they have been studied, but many locations have not yet been ...
DOI:
10.1007/s10641-018-0836-x

10. Age, growth, and maturity of the Indian flathead Platycephalus indicus in the waters around Okinawa-jima Island, Japan

Author:
Yuichi Akita; Katsunori Tachihara
Source:
Ichthyological research 2019 v.66 no.3 pp. 330-339
ISSN:
1341-8998
Subject:
Platycephalus indicus; body size; females; fisheries; gonads; hermaphroditism; life history; males; otoliths; resource management; sex reversal; spawning; traditional technology; Japan
Abstract:
... Indian flathead Platycephalus indicus (Platycephalidae) is an important fishery resource in tropical and subtropical waters. However, there have been few studies of its life history which is important for resource management because of taxonomic confusion. Here, we determine the age, growth, maturity, and spawning season of P. indicus from 351 specimens [21.7–76.9 cm total length (TL) for females; ...
DOI:
10.1007/s10228-019-00680-2

11. Age, growth, and reproductive biology of the Atlantic spadefish Chaetodipterus faber in southern Brazil

Author:
Marcelo Soeth; Luis Fernando Fávaro; Henry Louis Spach; Felippe Alexandre Daros; Ana Emília Woltrich; Alberto Teodorico Correia
Source:
Ichthyological research 2019 v.66 no.1 pp. 140-154
ISSN:
1341-8998
Subject:
Chaetodipterus; coasts; dimorphism; estuaries; females; fisheries; gonadosomatic index; gonads; histology; latitude; longevity; males; migratory behavior; otoliths; reproduction; sex ratio; spawning; Atlantic Ocean; Brazil
Abstract:
... This is the first study to investigate the age, growth and reproductive biology of the Atlantic spadefish Chaetodipterus faber in southern Brazil. A total of 625 individuals [total length (TL) ranging from 7 mm to 510 mm] were sampled at the Paranaguá Estuarine Complex (PEC) and adjacent coastal areas over a year (August 2015 to July 2016). Age estimation based on sagittal otolith cross section sh ...
DOI:
10.1007/s10228-018-0663-2

12. Annual reproductive cycle and condition index of Mactra corallina (Mollusca: Bivalvia) from the north coast of Tunisia

Author:
Imene Chetoui; Khaoula Telahigue; Safa Bejaoui; Imen Rabeh; Feriel Ghribi; Françoise Denis; M’Hamed ElCafsi
Source:
Invertebrate reproduction & development 2019 v.63 no.1 pp. 40-50
ISSN:
2157-0272
Subject:
Mactra; autumn; chlorophyll; coasts; females; gonads; histology; males; sex ratio; sexual maturity; spawning; summer; temperature; Tunisia
Abstract:
... This work aims to examine the reproductive cycle of the bivalve Mactra corallina inhabiting the Gulf of Tunis (Tunisia). Histological analysis indicated that the reproductive cycle is composed of six stages and was synchronous between sexes. Gonadal development began in January. From April to July, an increase in temperature (from 16 to 28°C) and a rise in chlorophyll a (from 3.25 to 6.35 mg/L) ma ...
DOI:
10.1080/07924259.2018.1529636

13. Appraisal of heavy metal levels in some marine organisms gathered from the Vellar and Uppanar estuaries Southeast Coast of Indian Ocean

Author:
Hassan M. A. Sulieman; El Amin M. Suliman
Source:
Journal of Taibah University for Science 2019 v.13 no.1 pp. 338-343
ISSN:
1658-3655
Subject:
Fenneropenaeus indicus; Mugil cephalus; Portunus pelagicus; aluminum; cadmium; coasts; crabs; estuaries; fish; gills; gonads; heavy metals; muscle tissues; muscles; shrimp; spectroscopy; trace elements; India; Indian Ocean
Abstract:
... Three marine organisms Mugil cephalus, Portunus pelagicus and Penaeus indicus were gathered from the Vellar and Uppanar estuaries, Southeast Coast of India . Their muscle tissues, gills, gonads, and skin were investigated for the presence of some trace elements, by Inductively Coupled Plasma-Optical Emission Spectrometry. The results showed that the Aluminum concentration level was observed to be ...
DOI:
10.1080/16583655.2019.1576276

14. Artificial Selection and Size at First Sexual Maturity of Perna perna Mussels (Linnaeus, 1758) in Southeastern Brazil

Author:
Thiago B. de Souza; Breno Ribeiro da Silva; Rodrigo M. Pereira; Paulo Henrique R. Aride; Adriano T. de Oliveira; André B. de Souza; Henrique D. Lavander; Marcelo F. Polese; Werther Krohling
Source:
Journal of shellfish research 2019 v.38 no.1 pp. 63-69
ISSN:
0730-8000
Subject:
Perna perna; aquaculture; artificial selection; coasts; females; gonads; histology; humans; males; mussels; sex determination; sex ratio; sexual maturity; shellfish; Brazil
Abstract:
... Brown mussels Perna perna (Linnaeus, 1758) are of great economic and social importance in the aquaculture and fishing sectors in many Brazilian states. The present study aimed to compare the sizes at first sexual maturity of brown mussels (L₅₀) from natural banks exposed to different levels of anthropogenic pressure. Mussel spat were extracted along the coast of the state of Espírito Santo, Brazil ...
DOI:
10.2983/035.038.0106

15. Aspects of reproductive biology of curimba Prochilodus lacustris (Pisces, Prochilodontidae) in a tropical lake in Northeastern Brazil

Author:
Rayssa de Lima Cardoso; Marcelo Henrique Lopes Silva; Raimunda Nonata Fortes Carvalho‐Neta; Antonio Carlos Leal de Castro; Cássia Fernanda Chagas Ferreira; Helen Roberta Silva Ferreira; Débora Martins Silva Santos
Source:
Journal of applied ichthyology 2019 v.35 no.2 pp. 488-500
ISSN:
0175-8659
Subject:
Prochilodus; allometry; biometry; body length; condition factor; dissolved oxygen; electrical conductivity; environmental factors; females; gillnets; gonadosomatic index; gonads; hepatosomatic index; indicator species; lakes; lentic systems; males; meteorological data; oxygen; pH; repletion; reproduction; sex ratio; spawning; stomach; temperature; tropical fish; wet season; Brazil
Abstract:
... This study evaluated the annual cycle of biological reproductive aspects of Prochilodus lacustris, a neotropical fish species, in Baixada Maranhense Protection Area in northeastern Brazil. Fish were collected monthly between June of 2015 and June of 2016 using gill nets. In the laboratory, 600 individuals were weighed, measured, and eviscerated to obtain biometric data and data for the microscopic ...
DOI:
10.1111/jai.13868

16. Assessing the impact of elevated pCO2 within and across generations in a highly invasive fouling mussel (Musculista senhousia)

Author:
Liqiang Zhao; Baozhan Liu; Wei An; Yuewen Deng; Yanan Lu; Bingxin Liu; Li Wang; Yuting Cong; Xin Sun
Source:
Science of the total environment 2019 v.689 pp. 322-331
ISSN:
0048-9697
Subject:
acclimation; adulthood; adults; biofouling; carbon dioxide; carbon dioxide enrichment; coastal water; economic impact; eggs; energy; gonads; growth performance; juveniles; larvae; metabolism; metamorphosis; mussels; ocean acidification; spawning
Abstract:
... Marine biofouling by the swiftly spreading invasive mussel (Musculista senhousia) has caused serious ecological and economic consequences in the global coastal waters. However, the fate of this highly invasive fouling species in a rapidly acidifying ocean remains unknown. Here, we demonstrated the impacts of ocean acidification within and across generations, to understand whether M. senhousia has ...
DOI:
10.1016/j.scitotenv.2019.06.466

17. Azinphos-methyl causes in Planorbarius corneus toxic effects on reproduction, offspring survival and B-esterases depending on the exposure time

Author:
Macarena Agrelo; Pamela R. Rivadeneira; Paula F. Cossi; Luis C. Cacciatore; Gisela Kristoff
Source:
Comparative biochemistry and physiology 2019 v.217 pp. 114-121
ISSN:
1532-0456
Subject:
Planorbarius corneus; acute exposure; adults; azinphos-methyl; biomarkers; carboxylesterase; cholinesterase; death; egg masses; enzyme activity; enzyme inhibition; gonads; juveniles; progeny; subchronic exposure; tissues; toxicity
Abstract:
... This work aimed to study in the freshwater gastropod Planorbarius corneus the effects of acute (2 days) and subchronic (14 days) exposures to an environmental concentration of the organophosphate azinphos-methyl on different reproductive parameters, offspring survival and B-esterase activities in gonads and in the whole organism soft tissue. The acute exposure inhibited only carboxylesterase activ ...
DOI:
10.1016/j.cbpc.2018.12.002

18. Benthic ctenophore (Order Platyctenida) reproduction, recruitment, and seasonality in south Florida

Author:
Peter W. Glynn; Brian Coffman; Karim Primov; D. Abigail Renegar; Julie Gross; Patricia Blackwelder; Nicolas Martinez; Joshua Dominguez; Jeongran Vanderwoude; Bernhard M. Riegl
Source:
Invertebrate biology 2019 v.138 no.3 pp. e12256
ISSN:
1077-8306
Subject:
Platyctenida; adults; animal reproduction; autumn; benthic organisms; body length; brooders; epiphytes; germ cells; gonads; hermaphroditism; juveniles; larvae; macroalgae; marine environment; population density; seasonal variation; spawning; spring; summer; Florida
Abstract:
... Reproductive structures, modes, and seasonal patterns of size–class abundances are examined in two benthic platyctene (Family Coeloplanidae) ctenophore species present in dissimilar shallow marine environments in subtropical southeast Florida. Coeloplana waltoni, a minute (1–3 mm body length) epizoic associate of octocorals, occurs in exposed environments often under turbulent conditions, and Vall ...
DOI:
10.1111/ivb.12256

19. Bioaccessibility of lipophilic and hydrophilic marine biotoxins in seafood: An in vitro digestion approach

Author:
Ricardo N. Alves; Maria Rambla-Alegre; Ana Catarina Braga; Ana L. Maulvault; Vera Barbosa; Mònica Campàs; Laia Reverté; Cintia Flores; Josep Caixach; Jane Kilcoyne; Pedro Reis Costa; Jorge Diogène; António Marques
Source:
Food and chemical toxicology 2019 v.129 pp. 153-161
ISSN:
0278-6915
Subject:
Mytilus edulis; Veneroida; azaspiracid; bioavailability; clams; domoic acid; fish; gonads; hydrophilicity; in vitro digestion; lipophilicity; okadaic acid; paralytic shellfish poisoning; poisoning; raw meat; raw shellfish; risk assessment; shellfish; steaming; tetrodotoxin; toxicology
Abstract:
... This study aimed to assess the bioaccessibility of different marine biotoxins in naturally contaminated shellfish and fish gonads using an in vitro digestion methodology. In general, hydrophilic toxins (domoic acid, paralytic shellfish poisoning toxins and tetrodotoxins) showed higher bioaccessibility than lipophilic ones (okadaic acid and azaspiracids). The bioaccessibility of toxins from the oka ...
DOI:
10.1016/j.fct.2019.04.041

20. Bioaccumulation of Total Mercury (THg) in Catfish (Siluriformes, Ariidae) with Different Sexual Maturity from Cananéia-Iguape Estuary, SP, Brazil

Author:
Giulliana D. Pecoraro; Marcos A. Hortellani; Yuri S. Hagiwara; Elisabete S. Braga; Jorge E. Sarkis; Juliana S. Azevedo
Source:
Bulletin of environmental contamination and toxicology 2019 v.102 no.2 pp. 175-179
ISSN:
0007-4861
Subject:
Cathorops spixii; Genidens; adults; bioaccumulation; catfish; coasts; environmental factors; estuaries; estuarine fish; females; gills; gonads; indicator species; juveniles; kidneys; males; mercury; metabolism; muscles; salinity; sexual maturity; Brazil
Abstract:
... In order to improve the knowledge of total mercury (THg) bioaccumulation in bioindicator species of sea catfish (Siluriformes, Ariidae) and taking into account the relatively recent approach with respect to estuarine fish on the Brazilian coast, 65 individuals were caught in the northern and southern regions of the Cananeia estuary to determine the concentration of the THg in muscles, gills, gonad ...
DOI:
10.1007/s00128-018-2485-3

21. Bioaccumulation of perfluoroalkyl substances in marine echinoderms: Results of laboratory-scale experiments with Holothuria tubulosa Gmelin, 1791

Author:
Julia Martín; Félix Hidalgo; María Teresa García-Corcoles; Alejandro José Ibáñez-Yuste; Esteban Alonso; Jose Luís Vilchez; Alberto Zafra-Gómez
Source:
Chemosphere 2019 v.215 pp. 261-271
ISSN:
0045-6535
Subject:
Holothuria; adsorption; bioaccumulation factor; females; freeze drying; gonads; intestines; laboratory experimentation; liquid chromatography; males; marine environment; perfluorocarbons; perfluorooctanoic acid; sediments; solvents; sorbents; t-test; tandem mass spectrometry; trophic levels
Abstract:
... Bioaccumulation of six perfluoroalkyl substances (PFAS) was assessed using the marine echinoderm Holothuria tubulosa Gmelin, 1791. Batch experiments were conducted to establish the relationship between concentrations in water, sediment and biota over 197 days. The sample treatment for the determination of compounds involves steps of lyophilization, solvent extraction and clean-up of the extracts w ...
DOI:
10.1016/j.chemosphere.2018.10.037

22. Biochemical responses of freshwater mussel Unio tumidus to titanium oxide nanoparticles, Bisphenol A, and their combination

Author:
Lesya Gnatyshyna; Halina Falfushynska; Oksana Horyn; Vira Khoma; Viktoria Martinyuk; Olena Mishchuk; Natalia Mishchuk; Oksana Stoliar
Source:
Ecotoxicology 2019 v.28 no.8 pp. 923-937
ISSN:
0963-9292
Subject:
DNA; Unio; antioxidant activity; bisphenol A; caspase-3; cathepsin D; enzyme activity; freshwater mussels; gene expression regulation; glutathione; gonads; lactic acid; lipid peroxidation; metallothionein; monophenol monooxygenase; nanoparticles; oxidation; oxidative stress; phosphates; pollutants; pyruvic acid; reactive oxygen species; stress response; superoxide dismutase; surface water; titanium dioxide; water purification; xenobiotics
Abstract:
... Multiple interactions between different pollutants in the surface waters can cause unpredictable consequences. The aim of the study was to evaluate the combined effect of two widespread xenobiotics, titanium oxide nanoparticles (TiO₂) and bisphenol A (BPA), on freshwater bivalve Unio tumidus. The specimens were exposed for 14 days to TiCl₄ (Ti, 1.25 µM), TiO₂ (1.25 μM), BPA (0.88 nM), or their com ...
DOI:
10.1007/s10646-019-02090-6

23. Breadth of the thermal response captures individual and geographic variation in temperature‐dependent sex determination

Author:
Anna L. Carter; Brooke L. Bodensteiner; John B. Iverson; Carrie L. Milne‐Zelman; Timothy S. Mitchell; Jeanine M. Refsnider; Daniel A. Warner; Fredric J. Janzen
Source:
Functional ecology 2019 v.33 no.10 pp. 1928-1939
ISSN:
0269-8463
Subject:
Chrysemys picta; environmental factors; females; geographical variation; gonads; latitude; nesting; nests; sex determination; sex ratio; temperature; turtles
Abstract:
... Population‐scale responses of key ecological traits to local environmental conditions provide insight into their adaptive potential. In species with temperature‐dependent sex determination (TSD), short‐term, individual developmental responses to the incubation environment have long‐term consequences for populations. We took a model‐based approach to study within‐ and among‐population variation in ...
DOI:
10.1111/1365-2435.13410

24. Changes in key enzyme activities and metabolites during in vitro maturation of Apostichopus japonicus oocyte under desiccation stress

Author:
Shilin Liu; Chenggang Lin; Hongxia Qu; Jingchun Sun; Xiaoshang Ru; Lina Sun; Libin Zhang; Tao Zhang; Yi Zhou; Hongsheng Yang
Source:
Aquaculture research 2019 v.50 no.2 pp. 400-411
ISSN:
1355-557X
Subject:
Apostichopus japonicus; adenylate cyclase; cyclic AMP; embryogenesis; enzyme activity; estradiol; germinal vesicle; glutathione; gonads; in vitro fertilization; metabolites; protein kinase C; superoxide dismutase
Abstract:
... Understanding the physiological changes of oocyte in vitro maturation are important for improving in in vitro fertilization rates and embryonic development. In this study, Apostichopus japonicus gonads were dissected, and the oocytes and gonadal fluid extracted from the gonads were dried in darkness to induce oocyte maturation. The changes in the germinal vesicle breakdown percentage (GVBDP), supe ...
DOI:
10.1111/are.13895

25. Changes in receptor location affect the ability of oxytocin to stimulate proliferative growth in prostate epithelial cells

Author:
M. L. Gould; H. D. Nicholson
Source:
Reproduction, fertility, and development 2019 v.31 no.6 pp. 1166-1179
ISSN:
1031-3613
Subject:
Western blotting; androgen receptors; androgens; cell membranes; cell proliferation; dihydrotestosterone; epithelial cells; fluorescent antibody technique; gonads; humans; neoplasm cells; neoplasm progression; oxytocin; oxytocin receptors; protein-protein interactions; signal transduction; staining
Abstract:
... In normal prostate cells, cell membrane receptors are located within signalling microdomains called caveolae. During cancer progression, caveolae are lost and sequestered receptors move out onto lipid rafts. The aim of this study was to investigate whether a change in the localisation of receptors out of caveolae and onto the cell membrane increased cell proliferation invitro, and to determine whe ...
DOI:
10.1071/RD18362

26. Changes in ultrastructure of gonads and external morphology during aging in the parthenogenetic cladoceran Daphnia pulex

Author:
Mingqi Cai; Zhiquan Liu; Minghai Chen; Youhui Huang; Meng Zhang; Yang Jiao; Yunlong Zhao
Source:
Micron 2019 v.122 pp. 1-7
ISSN:
0968-4328
Subject:
Daphnia pulex; body length; droplets; environmental factors; females; freshwater; gonads; growth and development; lipids; mitochondria; parthenogenesis; ponds; reproductive performance; scanning electron microscopy; survival rate; transmission electron microscopy; ultrastructure
Abstract:
... The water flea Daphnia pulex, a small crustacean that lives in freshwater ponds, undergoes parthenogenesis and gamogenesis according to environmental conditions. In D. pulex, different morphological characteristics can be observed using a microscope during aging. In this study, we recorded the growth, reproduction, and survival indicators of parthenogenetic D. pulex females to analyze the morpholo ...
DOI:
10.1016/j.micron.2019.04.001

27. Chronic and severe hypoxic conditions in Paracas Bay, Pisco, Peru: Consequences on scallop growth, reproduction, and survival

Author:
Arturo Aguirre-Velarde; Gérard Thouzeau; Fred Jean; Jaime Mendo; Rosa Cueto-Vega; Midori Kawazo-Delgado; Jazmín Vásquez-Spencer; Diego Herrera-Sanchez; Alex Vega-Espinoza; Jonathan Flye-Sainte-Marie
Source:
Aquaculture 2019 v.512 pp. 734259
ISSN:
0044-8486
Subject:
Argopecten purpuratus; aerobic conditions; anaerobic conditions; discoloration; energy metabolism; environmental monitoring; gonadosomatic index; gonads; hypoxia; mollusc culture; mortality; reproduction; scallops; spring; sulfides; summer; temperature; turbidity; weight loss; wind; winter; Peru
Abstract:
... The response of Argopecten purpuratus (Peruvian scallop) to environmental conditions was studied in the upwelling-influenced Bay of Paracas (Peru). Scallops growth and reproduction were monitored weekly over a 7-month period under two conditions (culture depths): on the bottom and 2 m above (suspended culture). At the same time, a high-frequency environmental monitoring was realized at the aforeme ...
DOI:
10.1016/j.aquaculture.2019.734259

28. Chronic exposure to 6:2 chlorinated polyfluorinated ether sulfonate acid (F-53B) induced hepatotoxic effects in adult zebrafish and disrupted the PPAR signaling pathway in their offspring

Author:
Guohui Shi; Qianqian Cui; Jinxing Wang; Hua Guo; Yitao Pan; Nan Sheng; Yong Guo; Jiayin Dai
Source:
Environmental pollution 2019 v.249 pp. 550-559
ISSN:
0269-7491
Subject:
Danio rerio; adults; blood; chronic exposure; females; fish; gene expression; gene ontology; genes; gonads; hepatotoxicity; industry; larvae; liver; males; parents; perfluorooctane sulfonic acid; peroxisome proliferator-activated receptors; progeny; quantitative polymerase chain reaction; reverse transcriptase polymerase chain reaction; signal transduction; sulfonates; transcription (genetics); transcriptomics; triacylglycerols; wildlife
Abstract:
... As a Chinese-specific alternative to perfluorooctane sulfonate (PFOS), 6:2 chlorinated polyfluorinated ether sulfonate (commercial name: F-53B) has been used in the metal plating industry for over 40 years. This prevalence of use has resulted in its subsequent detection within the environment, wildlife, and humans. Despite this, however, its hepatotoxic effects on aquatic organisms remain unclear. ...
DOI:
10.1016/j.envpol.2019.03.032

29. Circulating small non-coding RNAs provide new insights into vitamin K nutrition and reproductive physiology in teleost fish

Author:
Ignacio Fernández; Jorge M.O. Fernandes; Vânia P. Roberto; Martina Kopp; Catarina Oliveira; Marta F. Riesco; Jorge Dias; Cymon J. Cox; M. Leonor Cancela; Elsa Cabrita; Paulo Gavaia
Source:
Biochimica et biophysica acta 2019 v.1863 no.1 pp. 39-51
ISSN:
0304-4165
Subject:
DNA fragmentation; Solea senegalensis; bioinformatics; biomarkers; blood coagulation; blood plasma; brain; dietary supplements; estriol; fish; fish nutrition; gene expression regulation; gonads; males; messenger RNA; non-coding RNA; nutritional status; reproductive performance; skeletal development; sperm quality; spermatogenesis; testosterone; viability; vitamin K
Abstract:
... Vitamin K (VK) is a fat-soluble vitamin known for its essential role in blood coagulation, but also on other biological processes (e.g. reproduction, brain and bone development) have been recently suggested. Nevertheless, the molecular mechanisms behind its particular function on reproduction are not yet fully understood.The potential role of VK on reproduction through nutritional supplementation ...
DOI:
10.1016/j.bbagen.2018.09.017

30. Cloning and expression of the lifespan-associated protein Sir2 from Daphnia pulex

Author:
Chongyuan Lin; Mengdi Liu; Xiaojing Zhu; Mengmeng Zhang; Shanliang Xu; Danli Wang; Yunlong Zhao
Source:
Comparative biochemistry and physiology 2019 v.231 pp. 1-10
ISSN:
1096-4959
Subject:
Daphnia magna; Daphnia pulex; Escherichia coli; Homo sapiens; Mus musculus; Western blotting; active sites; affinity chromatography; amide hydrolases; amino acid sequences; antennae; antigens; antiserum; chest; complementary DNA; genes; gonads; in situ hybridization; longevity; messenger RNA; nickel; polyclonal antibodies; quantitative polymerase chain reaction; rabbits; recombinant proteins; sequence analysis; yeasts; zinc finger motif
Abstract:
... The activity of NAD+-dependent deacetylase Sir2, originally discovered in yeast, is known to be essential for effective longevity. The relationship between Sir2 and lifespan in Daphnia pulex was investigated by cloning and analysis the full-length 1901 bp cDNA. The Sir2 protein includes several zinc finger active sites and two readily hydrolysable low-complexity SD-rich regions. The three-domain s ...
DOI:
10.1016/j.cbpb.2019.01.007

31. Cloning, characterization and transcription analysis of fatty acyl desaturase (Δ6Fad‐like) and elongase (Elovl4‐like, Elove5‐like) during embryos development of Strongylocentrotus intermedius

Author:
Jun Ding; Dan Yang; Heng Wang; Rantao Zuo; Shoubing Qi; Lingshu Han; Yaqing Chang
Source:
Aquaculture research 2019 v.50 no.12 pp. 3483-3492
ISSN:
1355-557X
Subject:
Strongylocentrotus; acetyltransferases; biochemical pathways; biosynthesis; breeding; developmental stages; fatty acid composition; gene expression; genes; gonads; histidine; intestines; long chain polyunsaturated fatty acids; nutrients; nutritive value; open reading frames; oxygenases; polypeptides; proteins; reproductive performance; tissue distribution
Abstract:
... Strongylocentrotus intermedius has high nutritional value because it is rich in proteins, amino acids and long‐chain polyunsaturated fatty acids (LC‐PUFA). LC‐PUFA are essential nutrients that not only determine the nutritional value of sea urchins but also guarantee normal growth and reproduction performance. To better understand the molecular basis of LC‐PUFA biosynthesis in S. intermedius, the ...
DOI:
10.1111/are.14316

32. Combined effects of pentachlorophenol and its byproduct hexachlorobenzene on endocrine and reproduction in zebrafish

Author:
Wen Sun; Yali Jia; Xisheng Ding; Lili Dai; Chunsheng Liu; Jianghua Wang; Gaofeng Zhao; Huaidong Zhou; Liqin Yu
Source:
Chemosphere 2019 v.220 pp. 216-226
ISSN:
0045-6535
Subject:
Danio rerio; adults; byproducts; egg production; estradiol; females; fish eggs; gene expression; germ cells; gonads; hexachlorobenzene; larvae; males; pentachlorophenol; synergism; testosterone; toxicity
Abstract:
... Pentachlorophenol (PCP) and its byproduct hexachlorobenze (HCB) are two co-existing persistent environmental chemicals, but their combined toxicity remains unclear. In this study, adult zebrafish were exposed to 5 (low dose) and 25 μg·L⁻¹ (high dose) of PCP, HCB or their combination for 21 days, and the impact on endocrine and reproduction was investigated. Results showed that combined exposure to ...
DOI:
10.1016/j.chemosphere.2018.12.100

33. Comparative studies on duplicated tdrd7 paralogs in teleosts: Molecular evolution caused neo-functionalization

Author:
Bo Wang; Xinxin Du; Huizhen Wang; Chaofan Jin; Chen Gao; Jinxiang Liu; Quanqi Zhang
Source:
Comparative biochemistry and physiology 2019 v.30 pp. 347-357
ISSN:
1744-117X
Subject:
3' untranslated regions; Danio rerio; Lepisosteus oculatus; Paralichthys olivaceus; adults; bioinformatics; embryo (animal); flounder; genes; genomics; germ cells; gonads; mammals; phylogeny; proteins; tissues; transcriptome
Abstract:
... The third-round whole genome duplication (3R-WGD) event occurred in the stem lineage of teleost during evolution, and is considered to be responsible for the biological diversification of ray-finned fishes. TUDOR domain containing protein 7 (Tdrd7), which belongs to the Tudor family proteins has been widely discussed in mammals. However, information about this gene in teleost is still lacking. In ...
DOI:
10.1016/j.cbd.2019.04.006

34. Comparative transcriptome analysis combining SMRT and NGS sequencing provides novel insights into sex differentiation and development in mud crab (Scylla paramamosain)

Author:
Jiali Lin; Xi Shi; Shaobin Fang; Yin Zhang; Cuihong You; Hongyu Ma; Fan Lin
Source:
Aquaculture 2019 v.513 pp. 734447
ISSN:
0044-8486
Subject:
Scylla paramamosain; biosynthesis; breeding; crabs; enzymes; estradiol; females; gene expression regulation; genetic variation; gonads; high-throughput nucleotide sequencing; juveniles; males; sexual development; signal transduction; transcriptome; transcriptomics; unigenes
Abstract:
... The underlying mechanism of sex differentiation and development remains mysterious concerning the economic crustaceans, hindering the development of mono-sex breeding technology of those species. Gene discovery by next generation sequencing (NGS) has been widely applied in those species without reference genome. Nevertheless, the pivotal molecular differences driving sex dimorphisms before gonad d ...
DOI:
10.1016/j.aquaculture.2019.734447

35. Comparative transcriptome analysis of diploid and triploid hybrid groupers (Epinephelus coioides♀ × E. lanceolatus♂) reveals the mechanism of abnormal gonadal development in triploid hybrids

Author:
Ling Xiao; Dengdong Wang; Yin Guo; Zhujing Tang; Qiongyu Liu; Shuisheng Li; Yong Zhang; Haoran Lin
Source:
Genomics 2019 v.111 no.3 pp. 251-259
ISSN:
0888-7543
Subject:
Epinephelus; blood serum; brain; diploidy; genes; gonads; grouper; hybridization; hybrids; pituitary gland; sequence analysis; sexual development; steroid hormones; testosterone; transcriptome; transcriptomics; triploidy
Abstract:
... In our previous studies, diploid and triploid hybrids have been detected from the hybridization of Epinephelus coioides♀ × E. lanceolatus♂. The triploid groupers have been found to be delayed in gonadal development, but the mechanism remains poorly understood. In this study, we examined the gonadal development, assayed the serum steroid hormone levels, and compared the BP (brain and pituitary) and ...
DOI:
10.1016/j.ygeno.2018.11.010

36. Comparing three methods to estimate the average size at first maturity: A case study on a Curimatid exhibiting polyphasic growth

Author:
Danielly Torres Hashiguti; Bruno Eleres Soares; Kyle Logan Wilson; Roberta Dannyelle Oliveira‐Raiol; Luciano Fogaça de Assis Montag
Source:
Ecology of freshwater fish 2019 v.28 no.2 pp. 266-273
ISSN:
0906-6691
Subject:
Cyphocharax; body length; body weight; case studies; confidence interval; detritivores; fish; fisheries management; gillnets; gonads; logit analysis; sexual maturity
Abstract:
... The average size at first maturity (L₅₀) is among the most important parameters for fisheries management and conservation. This paper aims to compare three different methods for its estimation. Considering a classical approach, a logistic model was used (a) by determining the gonadal stage macroscopically; and (b) by using the GSI as proxy of sexual maturity; and finally; (c) by using the length–w ...
DOI:
10.1111/eff.12451

37. Comparison of growth and reproduction performance of broodstock Pacific white shrimp Litopenaeus vannamei reared in oceanic and brackish water

Author:
Jian Tan; Sheng Luan; Baoxiang Cao; Kun Luo; Xianhong Meng; Jie Kong
Source:
Aquaculture research 2019 v.50 no.7 pp. 1893-1902
ISSN:
1355-557X
Subject:
Litopenaeus vannamei; abnormal development; brackish water; breeding stock; desalination; eggs; enzymes; females; gonads; histopathology; nauplii; postlarvae; rearing; reproductive performance; salinity; sexual maturity; shrimp; survival rate
Abstract:
... This study provides a preliminary evaluation of feasibility of brackish water breeding. Shrimps were initially cultured at brackish water. Shrimps were reared at different stages (5, 6, 7 and 8 months, respectively), and 300 female shrimps were selected from each stage for growth at an enhanced salinity of 30 ppt. When the shrimps were sexually mature, the reproductive characteristics (mating rate ...
DOI:
10.1111/are.14075

38. Comparison of the Effects of Five Semen Extenders on the Quality of Frozen-Thawed Equine Epididymal Sperm

Author:
Stefanie Neuhauser; Heinrich Bollwein; Matthias Siuda; Johannes Handler
Source:
Journal of equine veterinary science 2019 v.79 pp. 1-8
ISSN:
0737-0806
Subject:
calcium; castration; cryopreservation; death; egg yolk; epididymis; freeze-thaw cycles; freezing; glycerol; gonads; harvesting; membrane potential; milk proteins; mitochondrial membrane; semen; semen extenders; sperm quality; stallions; thawing
Abstract:
... Cryopreservation of epididymal sperm allows the saving of genetic material in case of unexpected death or emergency castration. The aim of the present study was the comparison of five different combinations of extenders commercially available for equine frozen semen processing for cryopreservation of epididymal sperm. Epididymal sperm were harvested from gonads of 10 healthy stallions after routin ...
DOI:
10.1016/j.jevs.2019.05.002

39. Complete genome sequence of a divergent strain of Tibetan frog hepatitis B virus associated with a concave-eared torrent frog (Odorrana tormota)

Author:
Humberto J. Debat; Terry Fei Fan Ng
Source:
Archives of virology 2019 v.164 no.6 pp. 1727-1732
ISSN:
0304-8608
Subject:
DNA; Dicroglossidae; Hepatitis B virus; RNA; Ranidae; amino acid sequences; brain; data collection; frogs; genes; genetic variation; gonads; high-throughput nucleotide sequencing; host range; host specificity; hosts; muscles; nucleotide sequences; transcription (genetics); viruses; China
Abstract:
... Viruses of the family Hepadnaviridae are characterized by partially dsDNA circular genomes of approximately 3.2 kb, which are reverse transcribed from RNA intermediates. Hepadnaviruses have a broad host range, which includes humans (hepatitis B virus), other mammals (genus Orthohepadnavirus), and birds (genus Avihepadnavirus). The known host specificity of hepadnaviruses has been expanded by repor ...
DOI:
10.1007/s00705-019-04227-8

40. Concentrations and Risk Assessment of Heavy Metals in Tissues of Walleye Pollock (Gadus chalcogrammus) Captured from the Northeastern Coast of Korea

Author:
Dong-Woon Hwang; Kilbo Shim; Chung Il Lee
Source:
Journal of food protection 2019 v.82 no.5 pp. 903-909
ISSN:
0362-028X
Subject:
Food and Agriculture Organization; Gadus chalcogrammus; adverse effects; arsenic; average daily intake; cadmium; chromium; coasts; copper; gonads; heavy metals; iron; lead; liver; mercury; muscles; tissues; zinc; Korean Peninsula
Abstract:
... Concentrations of the heavy metals arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), iron (Fe), mercury (Hg), lead (Pb), and zine (Zn) were measured in muscle, liver, and gonads of walleye pollock (Gadus chalcogrammus) caught in waters off the northeastern coast of Korea. Zn concentration was the highest in the three tissues, and all heavy metals, except Hg, were selectively accumulated in l ...
DOI:
10.4315/0362-028X.JFP-18-379

41. Concentrations of melatonin, thyroxine, 17β-estradiol and 11-ketotestosterone in round goby (Neogobius melanostomus) in different phases of the reproductive cycle

Author:
Tatiana Guellard; Hanna Kalamarz-Kubiak; Ewa Kulczykowska
Source:
Animal reproduction science 2019 v.204 pp. 10-21
ISSN:
0378-4320
Subject:
Neogobius melanostomus; enzyme immunoassays; estradiol; females; fish; gonads; histology; males; maturity stage; melatonin; radioimmunoassays; spawning; steroids; thyroxine; Baltic Sea
Abstract:
... The aim of this study was to determine changes in concentrations of melatonin (Mel) and thyroxine (T4) in plasma, and 17β-estradiol (E2) and 11-ketotestosterone (11-KT) in plasma and gonads of female and male round gobies (Neogobius melanostomus) from the Southern Baltic Sea in four phases of the reproductive cycle classified as pre-spawning, spawning, late spawning and non-spawning periods. The c ...
DOI:
10.1016/j.anireprosci.2019.02.014

42. Conservation of spawning time between years in lumpfish Cyclopterus lumpus and potential impacts from the temporal distribution of fishing effort

Author:
James Kennedy; Halldór G. Ólafsson
Source:
Fisheries management and ecology 2019 v.26 no.4 pp. 389-396
ISSN:
0969-997X
Subject:
Cylopterus lumpus; fish; fisheries; gonads; mortality; ovarian development; phenology; spawning; Iceland
Abstract:
... Lumpfish, Cyclopterus lumpus L., has an extended ovary development period and a relatively long spawning season. It therefore seems unlikely that individuals spawning later in the season would be able to recover from spawning and develop their gonads in time to spawn during the early part of the season the following year. The hypothesis that individuals spawning early or late in a spawning season ...
DOI:
10.1111/fme.12352

43. Copper caused reproductive endocrine disruption in zebrafish (Danio rerio)

Author:
Jinling Cao; Guodong Wang; Tianyu Wang; Jianjie Chen; Guo Wenjing; Panhong Wu; Xinjin He; Lingtian Xie
Source:
Aquatic toxicology 2019 v.211 pp. 124-136
ISSN:
0166-445X
Subject:
Danio rerio; body weight; brain; copper; fish; fish communities; genes; gonads; histopathology; steroid hormones; surface water; transcription (genetics)
Abstract:
... Cu in surface waters has been demonstrated to affect aquatic animals at ecologically relevant concentrations. However, its effects on reproductive endocrine system and the underlying toxicological mechanisms are largely unknown. In this study, zebrafish (Danio rerio) were exposed to 0, 10, 20, 40 μg/L of Cu for 30 days. Growth, gonad histopathology, the hormone levels and the transcriptional profi ...
DOI:
10.1016/j.aquatox.2019.04.003

44. Crustacean vitellogenin: a systematic and experimental analysis of their genes, genomes, mRNAs and proteins; and perspective to Next Generation Sequencing

Author:
Stephanie Jimenez-Gutierrez; Cristian E. Cadena-Caballero; Carlos Barrios-Hernandez; Raul Perez-Gonzalez; Francisco Martinez-Perez; Laura R. Jimenez-Gutierrez
Source:
Crustaceana v.92 no.10 pp. 1169-1205
ISSN:
0011-216X
Subject:
Callinectes; Litopenaeus stylirostris; Litopenaeus vannamei; databases; environmental factors; gene expression; genes; gonads; high-throughput nucleotide sequencing; messenger RNA; molting; transcriptome; vitellin; vitellogenesis; vitellogenin
Abstract:
... Crustacean vitellogenesis is a process that involves Vitellin, produced via endoproteolysis of its precursor, which is designated as Vitellogenin (Vtg). The Vtg gene, mRNA and protein regulation involve several environmental factors and physiological processes, including gonadal maturation and moult stages, among others. Once the Vtg gene, mRNAs and protein are obtained, it is possible to establis ...
DOI:
10.1163/15685403-00003930

45. Cuttlebone morphometrics and sex identification of Sepia bertheloti (d’Orbigny, 1835) from the central-east Atlantic

Author:
Airam Guerra-Marrero; David Jiménez-Alvarado; Vicente Hernández-García; Leticia Curbelo-Muñoz; José Juan Castro-Hernández
Source:
Helgoland marine research 2019 v.73 no.1 pp. 10
ISSN:
1438-387X
Subject:
Sepia; females; gonads; males; morphometry; oocytes; Africa
Abstract:
... Analysis of 322 cuttlebones of Sepia bertheloti caught in the waters of the Northwest Africa showed significant differences in growth between males and females. Morphometric analysis revealed a relatively different cuttlebone growth pattern between sexes, with males presenting faster growth in length to reach larger sizes and females displaying greater growth in width. This difference in cuttlebon ...
DOI:
10.1186/s10152-019-0531-0

46. Daily rhythms in the reproductive axis of Nile tilapia (Oreochromis niloticus): Plasma steroids and gene expression in brain, pituitary, gonad and egg

Author:
Gonzalo de Alba; Natália Michele Nonato Mourad; Juan Fernando Paredes; Francisco Javier Sánchez-Vázquez; José Fernando López-Olmeda
Source:
Aquaculture 2019 v.507 pp. 313-321
ISSN:
0044-8486
Subject:
Oreochromis niloticus; acclimation; aquaculture; blood; brain; breeding; captive animals; eggs; enzyme-linked immunosorbent assay; estradiol; females; fish; gene expression; genes; gonads; males; photoperiod; progeny; quantitative polymerase chain reaction; spawning; steroids; tanks; testosterone
Abstract:
... Control of reproduction is one of the key issues to extend tilapia aquaculture. In most fish species, reproduction is a rhythmic process which ensures that reproduction timing matches the most favorable environmental conditions to maximize the survival of offspring. Although the existence of daily spawning rhythms has been reported for a number of fish species, the daily rhythms in neuroendocrine ...
DOI:
10.1016/j.aquaculture.2019.04.047

47. Daily rhythms of expression in reproductive genes along the brain-pituitary-gonad axis and liver of zebrafish

Author:
Juan Fernando Paredes; Mairi Cowan; José Fernando López-Olmeda; José Antonio Muñoz-Cueto; Francisco Javier Sánchez-Vázquez
Source:
Comparative biochemistry and physiology 2019 v.231 pp. 158-169
ISSN:
1095-6433
Subject:
Danio rerio; biological rhythms; brain; females; genes; gonads; liver; males; photoperiod; reproductive success
Abstract:
... The brain-pituitary-gonadal (BPG) axis regulates the activation of the endocrine machinery that triggers reproduction, which is a typical rhythmic process. In this research we focused on investigating the daily expression rhythms of the key reproductive genes involved in the BPG axis and the liver of zebrafish. To this end, male and female zebrafish were subjected to a stimulating photoperiod with ...
DOI:
10.1016/j.cbpa.2019.02.017

48. Defatted Haematococcus pluvialis meal can enhance the coloration of adult Chinese mitten crab Eriocheir sinensis

Author:
Nan Ma; Xiaowen Long; Jianguo Liu; Guoliang Chang; Deng Deng; Yongxu Cheng; Xugan Wu
Source:
Aquaculture 2019 v.510 pp. 371-379
ISSN:
0044-8486
Subject:
Eriocheir sinensis; Haematococcus pluvialis; acid phosphatase; adults; algae; alkaline phosphatase; antioxidant activity; antioxidants; aquaculture feeds; astaxanthin; blood serum; byproducts; color; crabs; crude protein; dietary supplements; experimental diets; females; finishing; glutathione peroxidase; glutathione-disulfide reductase; gonads; hemocyanin; hepatopancreas; ingredients; lipids; males; malondialdehyde; nitric oxide; nutrients; peroxidase; superoxide dismutase; tanks
Abstract:
... Defatted algal meal, a by-product of carotenoid extraction from Haematococcus pluvialis, still contains a certain level of astaxanthin and other nutrients, which is considered as a potential ingredient or additive for aquafeeds. This study was conducted to investigate the effects of dietary supplementation of defatted H. pluvialis on gonadal development, coloration, and antioxidant and immune capa ...
DOI:
10.1016/j.aquaculture.2019.05.063

49. Depletion of endogenous germ cells in striped catfish Pangasianodon hypophthalmus (Sauvage, 1878) by heat–chemical treatments

Author:
Sullip Kumar Majhi; Pradip Kumar Maurya; Santosh Kumar; Vindhya Mohindra; Kuldeep Kumar Lal
Source:
Reproduction in domestic animals 2019 v.54 no.12 pp. 1560-1566
ISSN:
0936-6768
Subject:
Pangasianodon hypophthalmus; chemical treatment; cytotoxicity; domestic animals; drugs; fish; germ cells; gonads; heat; histology; irradiation; ischemia; males; mammals; temperature
Abstract:
... Germ cell (GC) transplantation (GCT) is a proven powerful reproductive technique to enhance the production efficiency of domesticated animals and aid to the recovery of endangered germ lines. In mammals, several methods have been adopted for the eradication of GCs such as treatment with cytotoxic drugs, irradiation, cold ischaemia and hyperthermic treatment. Some of these methods have also been tr ...
DOI:
10.1111/rda.13564

50. Derivation of chicken primordial germ cells using an indirect Co-culture system

Author:
Long Xie; Zhenping Lu; Dongyang Chen; Mengmeng Yang; Yuying Liao; Wenrong Mao; Lifen Mo; Juanjuan Sun; Wenhao Yang; Huiyan Xu; Kehuan Lu; Yangqing Lu
Source:
Theriogenology 2019 v.123 pp. 83-89
ISSN:
0093-691X
Subject:
biotechnology; chick embryos; chickens; coculture; genomics; germ cells; gonads; phenotype; progeny
Abstract:
... Primordial germ cells (PGCs) are promising genetic resources for avian studies including modified animals. However, chicken PGCs are slow to proliferate and gradually lose germline competency after long-term culture, which hinders their application in avian biotechnology. Thus, we developed a robust method for the isolation and rapid propagation of PGCs using an indirect co-culture system. PGCs de ...
DOI:
10.1016/j.theriogenology.2018.09.017

51. Describing gonad development and gametogenesis in southern Africa’s endemic box jellyfish Carybdea branchi (Cubozoa, Carybdeidae)

Author:
R Mohamed; H Skrypzeck; MJ Gibbons
Source:
African journal of marine science 2019 v.41 no.1 pp. 83-91
ISSN:
1814-2338
Subject:
Cubozoa; developmental stages; dioecy; ecosystems; females; gametogenesis; gonads; males; oocytes; water; Southern Africa
Abstract:
... Information on the reproductive development of species of box jellyfish (class Cubozoa) is poor globally, despite their significance as potent stingers and worrying projections about range expansions. While most species are confined to tropical and subtropical waters, the South African box jellyfish Carybdea branchi is commonly found in the cold-water (especially southern) Benguela ecosystem. Its ...
DOI:
10.2989/1814232X.2019.1575282

52. Design and performance of recirculating aquaculture system for marine finfish broodstock development

Author:
Ritesh Ranjan; Sekar Megarajan; Biji Xavier; S.S. Raju; Shubhadeep Ghosh; A. Gopalakrishnan
Source:
Aquacultural engineering 2019 v.85 pp. 90-97
ISSN:
0144-8609
Subject:
Epinephelus coioides; Trachinotus; alkalinity; ammonium nitrogen; breeding stock; carbon dioxide; climatic factors; demersal fish; dissolved oxygen; economic evaluation; economic performance; eggs; females; fish culture; gonads; grouper; males; marine fish; nitrates; nitrites; pH; pelagic fish; prices; recirculating aquaculture systems; sand filters; sex ratio; spawning; tanks; temperature; water quality; India
Abstract:
... Tropical and subtropical climatic conditions in India present an ideal and unique opportunity for being the leader in tropical marine finfish aquaculture. However, the problem persist due to non-availability of marine finfish seed for the culture. In response to this problem, broodstock development of different tropical marine finfishes for seed production was started. The present study was undert ...
DOI:
10.1016/j.aquaeng.2019.03.002

53. Determination of sex and maturity stage of great sturgeon (Huso huso) using steroid sex hormones profiles, histology and laparoscopic images of gonads

Author:
Rezvanollah Kazemi; Mahtab Yarmohammadi; Ali Hallajian; Jalil Jalilpour; Hossein Mohammadi Parashkoh
Source:
Journal of applied ichthyology 2019 v.35 no.5 pp. 1084-1093
ISSN:
0175-8659
Subject:
Huso huso; blood plasma; breeding stock; females; fish culture; gonads; histology; laparoscopy; males; maturity stage; sex determination; steroid hormones; sturgeon; testosterone
Abstract:
... We studied sex and maturity stage of great sturgeon with different reproductive stages using sex steroid hormones concentrations in blood plasma, gonad histology and laparoscopic technique. One hundred sixty farmed great sturgeons at ages between 1 and +12 years and weight ranged from 0.45 to 49.65 kg (80 males and 80 females, 20 fish of each maturity stage) were selected. Mean sex steroid levels ...
DOI:
10.1111/jai.13948

54. Development of a system for measuring calcitonin in the stingray Dasyatis akajei (a cartilaginous fish): the possible involvement of stingray calcitonin in gonadal development

Author:
Takashi Takagi; Toshio Sekiguchi; Yuichi Sasayama; Atsuhiko Hattori; Takushi X. Watanabe; Yoichiro Kitani; Yoshiaki Tabuchi; Hajime Matsubara; Ajai K. Srivastav; Tran Ngoc Hai; Thumronk Amornsakun; Nobuo Suzuki
Source:
International aquatic research 2019 v.11 no.3 pp. 267-276
ISSN:
2008-4935
Subject:
Dasyatis; adjuvants; affinity chromatography; antibodies; antiserum; body weight; calcitonin; calcium; chlorine; egg yolk; enzyme-linked immunosorbent assay; gonads; inorganic phosphorus; liver; magnesium; muscles; osmoregulation; research; secretion; sodium; urea
Abstract:
... To elucidate the physiological role of calcitonin (CT) in stingrays (cartilaginous fish), an enzyme-linked immunosorbent assay (ELISA) system using a specific antibody against stingray CT has been developed. Synthetic stingray CT was subcutaneously injected into mice four times—once every 2 weeks—together with an adjuvant. We purified the IgG antibody fraction using the protein A affinity chromato ...
DOI:
10.1007/s40071-019-00236-0

55. Developmental Programming of Fertility in Livestock

Author:
Robert Cushman; George Perry
Source:
veterinary clinics of North America 2019 v.35 no.2 pp. 321-330
ISSN:
0749-0720
Subject:
environmental impact; female fertility; gonads; livestock; progeny; puberty
Abstract:
... Developmental programming became an area of interest to understand negative environmental impacts on progeny performance. Recently, the concept that we may be able to harness developmental programming to target animals to their niche in the production system has gained recognition. Female fertility is an area where developmental programming has been moderately successful; however, the mechanisms r ...
Handle:
10113/6471221
DOI:
10.1016/j.cvfa.2019.02.003

56. Disruption of ESR1 alters the expression of genes regulating hepatic lipid and carbohydrate metabolism in male rats

Author:
Vincentaben Khristi; Anamika Ratri; Subhra Ghosh; Devansh Pathak; Shaon Borosha; Eddie Dai; Richita Roy; V. Praveen Chakravarthi; Michael W. Wolfe; M.A. Karim Rumi
Source:
Molecular and cellular endocrinology 2019 v.490 pp. 47-56
ISSN:
0303-7207
Subject:
biochemical pathways; biosynthesis; energy; estrogen receptors; estrogens; females; gene expression; gene expression regulation; genes; glucose; glucose tolerance; gonads; homeostasis; hormone metabolism; liver; males; messenger RNA; metabolic diseases; obesity; rats; sequence analysis; sexual dimorphism; steroids; transcription (genetics); transporters; weight gain
Abstract:
... The liver helps maintain energy homeostasis by synthesizing and storing glucose and lipids. Gonadal steroids, particularly estrogens, play an important role in regulating metabolism. As estrogens are considered female hormones, metabolic disorders related to the disruption of estrogen signaling have mostly been studied in females. Estrogen receptor alpha (ESR1) is the predominant receptor in both ...
DOI:
10.1016/j.mce.2019.04.005

57. Disruption of sex‐specific doublesex exons results in male‐ and female‐specific defects in the black cutworm, Agrotis ipsilon

Author:
Xien Chen; Yanghui Cao; Shuai Zhan; Anjiang Tan; Subba Reddy Palli; Yongping Huang
Source:
Pest management science 2019 v.75 no.6 pp. 1697-1706
ISSN:
1526-498X
Subject:
Agrotis ipsilon; CRISPR-Cas systems; alternative splicing; antennae; embryogenesis; exons; females; gene editing; genitalia; gonads; insect control; insects; males; messenger RNA; oviposition; pests; progeny; sex determination; sexual dimorphism
Abstract:
... BACKGROUND: Doublesex (dsx), the downstream gene in the insect sex‐determination pathway, is a key regulator of sexually dimorphic development and behavior across a variety of insects. Manipulating expression of dsx could be useful in the genetic control of insects. However, information on the sex‐specific function of dsx in non‐model insects is lacking. RESULTS: In this work, we isolated a dsx ho ...
DOI:
10.1002/ps.5290

58. Diversity in reproductive traits of arapaima (Arapaima spp., Müller, 1843) in Amazonian várzea floodplains: Conservation implications

Author:
Daniel J. Gurdak; Donald J. Stewart; Leandro Castello; Caroline C. Arantes
Source:
Aquatic conservation 2019 v.29 no.2 pp. 245-257
ISSN:
1052-7613
Subject:
Arapaima; biodiversity; ecosystems; females; floodplains; forests; freshwater; freshwater fish; gonads; habitats; nesting; population density; reproductive behavior; reproductive traits; sexual maturity; spawning; Amazon River; Peru
Abstract:
... Understanding the reproductive ecology of freshwater fishes is essential to minimize the losses in global freshwater biodiversity but is often limited in data‐poor regions, such as tropical floodplain ecosystems. Specifically, the study investigated whether size at first sexual maturation and nesting features for arapaima vary within and across regions in the floodplain of the Amazon River. Data w ...
DOI:
10.1002/aqc.3030

59. Does a change in sleep timing increase testosterone in young adult men?

Author:
Jacqueline Zander; Corina Faßl; Christoph Randler
Source:
Biological rhythm research 2019 v.50 no.2 pp. 214-221
ISSN:
1744-4179
Subject:
actigraphy; gonads; men; saliva; sleep; testosterone; women; young adults
Abstract:
... Men are more evening oriented than women. These sex difference might be a result of gonadal hormones, especially of testosterone. Here, we tested for a causal relationship by shifting the sleep timing of young men to one hour later and assessed the influence on saliva testosterone. 50 men participated in our study (31 experimental, 19 control group). Sleep timing was measured with actigraphy. One ...
DOI:
10.1080/09291016.2018.1440767

60. Dual liquid-liquid extraction followed by LC-MS/MS method for the simultaneous quantification of melatonin, cortisol, triiodothyronine, thyroxine and testosterone levels in serum: Applications to a photoperiod study in rats

Author:
Cristina Domenech-Coca; Roger Mariné-Casadó; Antoni Caimari; Lluís Arola; Josep Maria del Bas; Cinta Bladé; Maria Isabel Rodriguez-Naranjo
Source:
Journal of chromatography 2019 v.1108 pp. 11-16
ISSN:
1570-0232
Subject:
adrenal glands; blood serum; cortisol; gonads; ionization; ions; isotope labeling; liquid chromatography; liquid-liquid extraction; melatonin; models; monitoring; photoperiod; protocols; rats; standard deviation; tandem mass spectrometry; testosterone; therapeutics; thyroid gland; triiodothyronine
Abstract:
... Hypothalamic Pituitary (PH) axes directly affects the functionality of the thyroid gland, the adrenal gland, and the gonads and their alteration has been related to several pathologies. Therefore, the global analysis of representative hormones from each axis, together with melatonin, would be a very good strategy for therapeutic diagnosis. Hence, an accurate, economic and effective analytical meth ...
DOI:
10.1016/j.jchromb.2019.01.002

61. Early development of primordial germ cells in Pacific bluefin tuna Thunnus orientalis

Author:
Kentaro Higuchi; Rie Goto; Junpei Konishi; Yoshiaki Ina; Yukinori Kazeto; Koichiro Gen
Source:
Theriogenology 2019 v.131 pp. 106-112
ISSN:
0093-691X
Subject:
3' untranslated regions; Danio rerio; Thunnus orientalis; aquaculture; biotechnology; early development; eggs; embryogenesis; fluorescent proteins; genes; germ cells; gonads; hatching; histology; larvae; migratory behavior; somatic cells; transcription (genetics)
Abstract:
... Bluefin tuna is one of the most important aquaculture species in several countries; however, information regarding the primordial germ cell (PGC) development and migration in this species is scarce. This information is vital for application in reproductive biotechnology, for example, induced sterility through targeted cell ablation or PGC manipulation. Teleost PGC can be visualized by injecting an ...
DOI:
10.1016/j.theriogenology.2019.03.031

62. Early life‐history adaptation influences conservation approaches for facultatively amphidromous fish

Author:
Jason M. Augspurger; Gerard P. Closs
Source:
Aquatic conservation 2019 v.29 no.9 pp. 1403-1408
ISSN:
1052-7613
Subject:
Galaxias brevipinnis; diadromous fish; eggs; environmental factors; fecundity; gonads; larvae; life history; mortality; oocytes; rearing; ripening; spawning; threatened species; New Zealand
Abstract:
... Early life history is widely recognized as the stage of fish life history where mortality is the highest. Incorrect adaptation of early life‐history characteristics to environmental conditions will result in high larval mortality and therefore recruitment failure. As a result, understanding early life‐history requirements is critical if conservation techniques such as translocations are to be succ ...
DOI:
10.1002/aqc.3077

63. Ecotoxicological effects of lanthanum in Mytilus galloprovincialis: Biochemical and histopathological impacts

Author:
João Pinto; Marcelo Costa; Carla Leite; Cláudia Borges; Francesca Coppola; Bruno Henriques; Rui Monteiro; Tania Russo; Anna Di Cosmo; Amadeu M.V.M. Soares; Gianluca Polese; Eduarda Pereira; Rosa Freitas
Source:
Aquatic toxicology 2019 v.211 pp. 181-192
ISSN:
0166-445X
Subject:
Mytilus galloprovincialis; acetylcholinesterase; antioxidant activity; aquatic organisms; arsenic; biotransformation; ecotoxicology; electronic wastes; energy; gills; gonads; histopathology; lanthanum; mercury; metabolism; mussels; neurotoxicity; oxidative stress; pollutants; pollution; risk; salinity; superoxide dismutase; temperature
Abstract:
... Inappropriate processing and disposal of electronic waste contributes to the contamination of aquatic systems by various types of pollutants such as the rare-earth elements (REE) in which lanthanum (La) is included. Knowledge on the toxicity of these elements in marine organisms is still scarce when compared to other metals such as mercury (Hg) and arsenic (As). Therefore, this study aims to asses ...
DOI:
10.1016/j.aquatox.2019.03.017

64. Effect of ascorbic acid supplementation on zootechnical performance, haematological parameters and sperm quality of lebranche mullet Mugil liza

Author:
Jorgelia Castro; Caio Magnotti; Morgana Angelo; Fabio Sterzelecki; Fabiola Pedrotti; Maria Fernanda Oliveira; Thiago Soligo; Débora Fracalossi; Vinicius Ronzani Cerqueira
Source:
Aquaculture research 2019 v.50 no.11 pp. 3267-3274
ISSN:
1355-557X
Subject:
Mugil liza; ascorbic acid; blood; breeding; erythrocyte count; fish; glucose; gonadosomatic index; gonads; hepatosomatic index; males; plasma membrane; protein content; sperm motility; sperm quality; spermiation; vitamin supplements
Abstract:
... The feed provided to breeding fish is one of the main factors influencing the quality of fish gametes. This study was carried out to evaluate the influence of ascorbic acid on growth, haematological parameters and sperm quality of Lebranche mullet males (Mugil liza). Six diets with different levels of ascorbic acid (0; 53; 107; 216; 482 and 708 mg/kg) were tested in triplicate for 75 days. During ...
DOI:
10.1111/are.14284

65. Effect of exogenous hormones on R-spondin 1 (RSPO1) gene expression and embryo development in Pelodiscus sinensis

Author:
Hongwei Liang; Yan Meng; Lihuan Cao; Xiang Li; Guiwei Zou
Source:
Reproduction, fertility, and development 2019 v.31 no.9 pp. 1425-1433
ISSN:
1031-3613
Subject:
Pelodiscus sinensis; adults; aromatase; brain; drugs; eggs; embryogenesis; enzyme inhibitors; estradiol; females; feminization; gene expression; genes; gonads; males; phylogeny; proteins; sequence analysis; sex determination; sex ratio; turtles
Abstract:
... Little is known about sex determination and differentiation in the Chinese soft-shelled turtle Pelodiscus sinensis. R-Spondin 1 (RSPO1), a candidate sex-determining gene, is an important regulator of ovarian differentiation in animals. Exogenous drugs can affect sex differentiation. In this study we cloned the RSPO1 gene from P. sinensis (psRSPO1) and analysed its expression profile. The psRSPO1 g ...
DOI:
10.1071/RD19045

66. Effect of protein and lipid levels in diets for adult sea urchin Paracentrotus lividus (Lamarck, 1816)

Author:
Luís F. Baião; Filipa Rocha; Mónica Costa; Tiago Sá; Ana Oliveira; Margarida R.G. Maia; António J.M. Fonseca; Manuela Pintado; Luisa M.P. Valente
Source:
Aquaculture 2019 v.506 pp. 127-138
ISSN:
0044-8486
Subject:
Paracentrotus lividus; adults; beta-carotene; body composition; body weight; cages; color; energy intake; experimental diets; feed conversion; females; firmness; gonads; lipid content; males; omega-3 fatty acids; protein content; protein efficiency ratio; recirculating aquaculture systems; seafoods; specific growth rate; supply balance; tanks; texture; weight gain; wild animals
Abstract:
... Paracentrotus lividus gonads are considered a prized seafood delicacy due to its organoleptic features. The increasing market demand for sea urchin depleted several wild stocks, thus aquaculture can play an important role in supplying high-quality animals. Nevertheless, the success of this activity largely depends on the development of nutritionally balanced diets capable of producing excellent go ...
DOI:
10.1016/j.aquaculture.2019.03.005

67. Effect of three diets on the gametogenic development and fatty acid profile of Paracentrotus lividus (Lamarck, 1816) gonads

Author:
Andreia I. G. Raposo; Susana M. F. Ferreira; Rodolfo Ramos; Pedro M. Santos; Catarina Anjos; Teresa Baptista; Carla Tecelão; José L. Costa; Ana Pombo
Source:
Aquaculture research 2019 v.50 no.8 pp. 2023-2038
ISSN:
1355-557X
Subject:
Brassica oleracea var. capitata; Codium; Daucus carota; Paracentrotus lividus; Tetragonia tetragonoides; Zea mays; ad libitum feeding; agar; cabbage; carrots; corn; diet; eicosapentaenoic acid; fatty acid composition; gametogenesis; gelation; gonadosomatic index; gonads; ingredients; lipid content; macroalgae; omega-3 fatty acids; omega-6 fatty acids; resorption
Abstract:
... In this study, the effects of three diets were investigated to enhance Paracentrotus lividus production for commercial purposes. P. lividus were fed ad libitum for 80 days with: diet A—fresh Codium tomentosum Stackhouse, 1797; diet B—formulated using a jellified mix of macroalgae and vegetables, including C. tomentosum (20%), Coralina sp. Linnaeus, 1758 (17%), cabbage Brassica oleracea var. capita ...
DOI:
10.1111/are.14051

68. Effects of PCB-77 in adult zebrafish after exposure during early life stages

Author:
Carla Quintaneiro; Amadeu M. V. M. Soares; Diana Costa; Marta S. Monteiro
Source:
Journal of environmental science and health 2019 v.54 no.5 pp. 478-483
ISSN:
1532-4117
Subject:
Danio rerio; adulthood; adults; estrogen receptors; females; fish; gonadosomatic index; gonads; hepatosomatic index; juveniles; polychlorinated biphenyls; vitellogenesis; vitellogenin
Abstract:
... Polychlorinated biphenyls (PCBs) are a class of industrial chemicals that cause endocrine changes, since they are able to bind to estrogen receptors and interfere with estrogen-regulated processes, such as fish vitellogenesis. Therefore, the present work aimed to assess potential endocrine effects of PCB-77 exposure during zebrafish (Danio rerio) gonadal differentiation. To achieve that, zebrafish ...
DOI:
10.1080/10934529.2019.1568793

69. Effects of elevated temperature on gonadal functions, cellular apoptosis, and oxidative stress in Atlantic sea urchin Arbacia punculata

Author:
Jackson Johnstone; Sarah Nash; Eleazar Hernandez; Md Saydur Rahman
Source:
Marine environmental research 2019 v.149 pp. 40-49
ISSN:
0141-1136
Subject:
Arbacia; apoptosis; aquariums; aquatic organisms; eggs; gonads; heat-shock protein 70; oxidative stress; pH; reactive nitrogen species; reproduction; seawater; spermatozoa; temperature; tissues
Abstract:
... Increasing seawater temperature affects growth, reproduction and development in marine organisms. In this study, we examined the effects of elevated temperatures on reproductive functions, heat shock protein 70 (HSP70) and nitrotyrosine protein (NTP, an indicator of reactive nitrogen species) expressions, protein carbonyl (PC, an indicator of oxidative stress) contents, cellular apoptosis, and coe ...
DOI:
10.1016/j.marenvres.2019.05.017

70. Effects of global warming on reproduction and potential dispersal of Mediterranean Cnidarians

Author:
S. Rossi; C. Gravili; G. Milisenda; M. Bosch-Belmar; D. De Vito; S. Piraino
Source:
The European zoological journal 2019 v.86 no.1 pp. 255-271
ISSN:
2475-0263
Subject:
Anthozoa; Hydrozoa; Noctiluca; Scyphozoa; autumn; energy; excretion; food availability; gonads; metabolism; phenology; primary productivity; progeny; sexual reproduction; species diversity; water temperature; Mediterranean Sea
Abstract:
... Water temperature directly affects life cycles, reproductive periods, and metabolism of organisms living the oceans, especially in the surface zones. Due to the ocean warming, changes in water stratification and primary productivity are affecting trophic chains in sensitive world areas, such as the Mediterranean Sea. Benthic and pelagic cnidarians exhibit complex responses to climatic conditions. ...
DOI:
10.1080/24750263.2019.1631893

71. Effects of long-term 4-nonylphenol dietary exposure on reproductive ability of Japanese quails (Coturnix japonica)

Author:
Yan Cheng; Zhengjun Shan; Junying Zhou; Yuanqing Bu; Pengfu Li; Shan Lu
Source:
Environmental science and pollution research international 2019 v.26 no.3 pp. 2908-2917
ISSN:
0944-1344
Subject:
Coturnix japonica; body weight; diet; dietary exposure; dose response; eggs; endocrine-disrupting chemicals; females; gonads; hatching; histopathology; males; oral administration; quails; reproductive performance; reproductive toxicology; spermatogenesis; survival rate
Abstract:
... As an endocrine disruptor, 4-nonylphenol (4-NP) is widespread in the environment. Here, we investigated the effect of long-term 4-NP dietary exposure on Japanese quails (Coturnix japonica). A total of 72 quails were evenly divided into 24 cages (12 cages for the reproductive toxicity study and 12 cages for the histopathology study, with one male quail and two female quails in each cage) and fed wi ...
DOI:
10.1007/s11356-018-3820-2

72. Effects of salinity on sexual maturity and reproduction of Poecilia velifera

Author:
Luanna do Carmo Neves; Filipe Cipriano; João Paulo Silva Lorenzini; Kauana Santos de Lima Cipriano; Lucas Pedro Gonçalves Junior; Cintia L. Nakayama; Ronald Kennedy Luz; Kleber Campos Miranda Filho
Source:
Aquaculture research 2019 v.50 no.10 pp. 2932-2937
ISSN:
1355-557X
Subject:
Poecilia; animal reproduction; aquatic habitat; early development; females; fish; freshwater; gonads; juveniles; males; reproductive success; salinity; sex ratio; sexual maturity
Abstract:
... Poecilia velifera is a popular fish in freshwater aquarism that naturally inhabits aquatic habitats with a wide range of salinities. Nonetheless, the effects of different salinities on the reproductive success and sex ratio of the species remain unknown. Male sex characters, sex ratio and reproductive success of P. velifera were evaluated by maintaining 160 juveniles (0.078 ± 0.011 g) in four diff ...
DOI:
10.1111/are.14247

73. Effects of spawning temperature on the reproductive characteristics of walleye pollock Gadus chalcogrammus

Author:
Hiroshige Tanaka; Toru Nakagawa; Takashi Yokota; Masayuki Chimura; Yuuho Yamashita; Tetsuichiro Funamoto
Source:
Fisheries science 2019 v.85 no.6 pp. 901-911
ISSN:
0919-9268
Subject:
Gadus chalcogrammus; egg quality; eggs; fish larvae; gonads; spawning; starvation; water temperature
Abstract:
... Reproductive characteristics under different water temperature regimes were examined in hatchery-reared walleye pollock Gadus chalcogrammus. The fish had been cultured for 33 months post-hatching before the experiment, and the first spawning was observed from 24 to 27 months post-hatching. From 33 months post-hatching, fish were cultured at three temperature regimes (2, 5, and 8 °C), and spawning ...
DOI:
10.1007/s12562-019-01343-x

74. Effects of the interaction between temperature and steroid hormones on gametogenesis and sex ratio in the European flat oyster (Ostrea edulis)

Author:
Lina M. Zapata-Restrepo; Chris Hauton; Ian D. Williams; Antony C. Jensen; Malcolm D. Hudson
Source:
Comparative biochemistry and physiology 2019 v.236 pp. 110523
ISSN:
1095-6433
Subject:
Ostrea edulis; biometry; environmental factors; estradiol; gametogenesis; gonads; hatcheries; oysters; protandry; seawater; sex determination; sex ratio; steroid hormones; steroids; testosterone; water temperature; Europe
Abstract:
... Throughout Europe, populations of Ostrea edulis have been in decline since the 1970s. Temperature has an important influence on physiological, biochemical and reproductive attributes of oysters. It is also the most easily modulated environmental factor in hatcheries, so it is useful to understand the implications of temperature variation in driving gametogenesis and sex development in a protandrou ...
DOI:
10.1016/j.cbpa.2019.06.023

75. Effects of traditional fishing techniques on internal organ regeneration, physiology, and biochemistry in the tropical sea cucumber Stichopus horrens

Author:
Hannah Charan-Dixon; Sharyn J. Goldstien; Beth J. Vanderhaven; Tuikolongahau Halafihi; Tonga Latu Tuiano; Sally Gaw; Chris N. Glover
Source:
Journal of experimental marine biology and ecology 2019 v.510 pp. 15-22
ISSN:
0022-0981
Subject:
Stichopus; ammonia; animals; digestive tract; energy; excretion; fisheries; fisheries management; glucose; glycogen; gonads; harvesting; integument; lactic acid; oxygen consumption; reproduction; respiratory system; tissues; Tonga
Abstract:
... The sea cucumber Stichopus horrens is an important resource in the Kingdom of Tonga. Domestically, there are two fisheries; one at a commercial scale and one for subsistence purposes. Both fisheries involve harvesting all viscera (digestive tract, gonads and respiratory tree) through a lateral body wall incision, although only the digestive tract and gonads are consumed. Under the right conditions ...
DOI:
10.1016/j.jembe.2018.09.007

76. Elemental distribution in the different tissues of brood stock from Greek hatcheries

Author:
Ioanna Kalantzi; Kyriaki Mylona; Spiros A. Pergantis; Antonio Coli; Sokratis Panopoulos; Manolis Tsapakis
Source:
Aquaculture 2019 v.503 pp. 175-185
ISSN:
0044-8486
Subject:
Dicentrarchus labrax; biochemical pathways; bones; breeding stock; chemistry; exposure pathways; fish; gills; gonads; hatcheries; kidneys; liver; metals; muscles; otoliths; scales (integument); stomach; Greece
Abstract:
... The distribution of twenty-four metals and elements in the tissues and organs of brood stock European seabass (Dicentrarchus labrax) was investigated. Muscle, liver, kidney, gills, bone, scales, gonads, otoliths and stomach were dissected from seabass brood stock from hatcheries in different sites in Greece, Eastern Mediterranean. The tissues and organs were clearly different depending on their me ...
DOI:
10.1016/j.aquaculture.2019.01.004

77. Endoscopy and Cannulation as Non-Invasive Tools to Identify Sex and Monitor Reproductive Development in Arapaima gigas

Author:
Lucas Simon Torati; Adriana Ferreira Lima; Luciana Nakaghi Ganeco Kirschnik; Hervé Migaud
Source:
Copeia 2019 v.107 no.2 pp. 287-296
ISSN:
0045-8511
Subject:
Arapaima gigas; biopsy; breeding season; breeding stock; captive animals; eggs; endoscopy; estradiol; females; gonads; juveniles; males; monitoring; oocytes; oogenesis; ovarian development; ponds; scanning electron microscopy; spawning
Abstract:
... The lack of tools for sex identification and assessment of gonadal development are hindering our ability to study the reproductive dysfunction of Arapaima gigas in captivity. This study initially aimed to validate a non-surgical endoscopy procedure to identify sex in juveniles and assess stage of ovary development in female broodstock under field operational conditions. Cannulation, assisted throu ...
DOI:
10.1643/OT-18-127

78. Enhancing Fertility in Mares: Recombinant Equine Gonadotropins

Author:
Janet F. Roser; Geraldine Meyers-Brown
Source:
Journal of equine veterinary science 2019 v.76 pp. 6-13
ISSN:
0737-0806
Subject:
deslorelin acetate; embryo transfer; equine chorionic gonadotropin; female fertility; follicle-stimulating hormone; gonadotropin-releasing hormone; gonads; human chorionic gonadotropin; immunization; inhibin; intracytoplasmic sperm injection; luteinizing hormone; mares; oocytes; ova transfer; ovulation; pregnancy rate; progesterone; reproductive efficiency; semen; stallions; superovulation; swine
Abstract:
... Advanced reproductive technologies have been developed to enhance fertility in mares and stallions. Some of these technologies in mares include superovulation, embryo transfer (ET), intracytoplasmic sperm injection (ICSI), oocyte transfer (OT), gamete intrafallopian transfer (GIFT), and cloning. Superovulation can provide multiple oocytes for these techniques. This review will focus on how recombi ...
DOI:
10.1016/j.jevs.2019.03.004

79. Erratum to: Expression profiles of sex-related genes in gonads of genetic male Takifugu rubripes after 17β-estradiol immersion

Author:
Peng Hu; Bin Liu; Qian Ma; Shufang Liu; Xinfu Liu; Zhimeng Zhuang
Source:
Journal of oceanology and limnology 2019 v.37 no.5 pp. 1789
ISSN:
2096-5508
Subject:
Takifugu rubripes; estradiol; genes; gonads; males
Abstract:
... The original version of this article unfortunately contained a mistake. The publication year in the header on the first page (p. 1113) of this article was incorrect. ...
DOI:
10.1007/s00343-019-1789-4

80. Estrone exposure interacts with temperature to alter predator evasion performance and systemic mRNA abundances

Author:
Megan K. Cox; Jessica L. Ward; Michelle Matsuura; Raingsey Aing; Heiko L. Schoenfuss; Satomi Kohno
Source:
Science of the total environment 2019 v.692 pp. 519-528
ISSN:
0048-9697
Subject:
Pimephales promelas; ambient temperature; animal performance; anthropogenic activities; anti-Mullerian hormone; aquatic ecosystems; aromatase; calcium channels; cytochrome P-450; estrogen receptors; estrone; ethanol; gene expression; genes; gonads; larvae; messenger RNA; minnows; muscles; solvents
Abstract:
... Environmental estrogens from anthropogenic activities are ubiquitous in aquatic ecosystems. Ambient temperature in these systems also fluctuates in daily, seasonal, and long-term rhythms. While both factors have been studied extensively, their interaction on aquatic life is critical to understand. The objective of this study was, therefore, to examine how behavior and gene expression are impacted ...
DOI:
10.1016/j.scitotenv.2019.07.142

81. Evaluation of diagnostic coelioscopy in koi (Cyprinus carpio)

Author:
Brittany N. Stevens; David Sanchez-Migallon Guzman; Kathryn L. Phillips; Alvin C. Camus; Esteban Soto
Source:
American journal of veterinary research 2019 v.80 no.3 pp. 221-229
ISSN:
0002-9645
Subject:
Cyprinus carpio; disease diagnosis; gall bladder; gonads; heart; hemorrhage; intestines; kidneys; koi; liver; necropsy; sodium chloride; spleen; swim bladder
Abstract:
... OBJECTIVE To describe a technique for endoscopic evaluation of the coelomic viscera of koi (Cyprinus carpio) and to evaluate the ability to visually examine coelomic structures by use of an approach cranial or caudal to the pelvic girdle. ANIMALS 16 subadult koi. PROCEDURES Koi were anesthetized with buffered tricaine methanesulfonate. Coelioscopic examination was performed via a ventral midline i ...
DOI:
10.2460/ajvr.80.3.221

82. Expression and intracellular localization of Nanos2-homologue protein in primordial germ cells and spermatogonial stem cells

Author:
Vivek Pandey; Anima Tripathi; Pawan K. Dubey
Source:
Zygote 2019 v.27 no.2 pp. 82-88
ISSN:
1469-8730
Subject:
Western blotting; arsenic; embryogenesis; flow cytometry; fluorescent antibody technique; gonads; immunocytochemistry; immunohistochemistry; messenger RNA; oogenesis; postpartum period; rats; reverse transcriptase polymerase chain reaction; spermatogenesis; spermatogonia; stem cells; zygote
Abstract:
... The decision by germ cells to differentiate and undergo either oogenesis or spermatogenesis takes place during embryonic development and Nanos plays an important role in this process. The present study was designed to investigate the expression patterns in rat of Nanos2-homologue protein in primordial germ cells (PGCs) over different embryonic developmental days as well as in spermatogonial stem c ...
DOI:
10.1017/S0967199419000066
PubMed:
30888312

83. FTO and IRX3 Genes are Not Promising Markers for Obesity in Labrador Retriever Dogs

Author:
Adrian Grzemski; Monika Stachowiak; Krzysztof Flisikowski; Monika Mankowska; Paulina Krzeminska; Maciej Gogulski; Roman Aleksiewicz; Maciej Szydlowski; Marek Switonski; Joanna Nowacka-Woszuk
Source:
Annals of animal science 2019 v.19 no.2 pp. 343-357
ISSN:
2300-8733
Subject:
DNA; Labrador Retriever; animal science; body conformation; dogs; genes; gonads; humans; methylation; obesity
Abstract:
... Obesity is a serious problem in numerous dog breeds, but knowledge of its hereditary background is scarce. On the contrary, numerous DNA polymorphisms associated with human obesity have been identified, with the strongest effect being demonstrated for FTO gene. We used targeted next-generation sequencing (tNGS) to search for polymorphisms in the region harboring FTO and IRX3 in 32 Labrador dogs. M ...
DOI:
10.2478/aoas-2019-0004

84. Fabrication of surface-active antioxidant biopolymers by using a grafted scallop (Patinopecten yessoensis) gonad protein isolate–epigallocatechin gallate (EGCG) conjugate: improving the stability of tuna oil-loaded emulsions

Author:
Jiarun Han; Yinan Du; Wenhui Shang; Jianan Yan; Haitao Wu; Beiwei Zhu; Hang Xiao
Source:
Food & function 2019 v.10 no.10 pp. 6752-6766
ISSN:
2042-650X
Subject:
Mizuhopecten yessoensis; antioxidants; beta oxidation; biopolymers; electrophoresis; emulsifiers; emulsions; encapsulation; epigallocatechin gallate; free radicals; gel chromatography; gonads; lipid peroxidation; oil-water interface; oxidation; oxidative stability; oxygen radical absorbance capacity; particle size; protein isolates; scallops; storage quality; tuna; tuna oil; unsaturated fats
Abstract:
... The oxidation of unsaturated fats generally occurs at the oil–water interface of emulsions, so surface-active antioxidants are needed for inhibiting lipid oxidation. In this study, a scallop gonad protein isolate (SGPI)–epigallocatechin gallate (EGCG) conjugate was fabricated and characterized as an amphiphilic surface-active antioxidant in improving the physicochemical and oxidative stability of ...
DOI:
10.1039/c9fo01723b

85. Family differences on triploid induction, sexual maturation and its contribution to sea cage performance of Atlantic cod, Gadus morhua

Author:
Velmurugu Puvanendran; Ingrid Lein; Rama Bangera; Atle Mortensen; Anders Thorsen
Source:
Aquaculture 2019 v.506 pp. 14-22
ISSN:
0044-8486
Subject:
Gadus morhua; body weight; breeding programs; cages; diploidy; early development; eggs; females; fish; gonadosomatic index; gonads; hydrostatic pressure; juveniles; larvae; liver; rearing; tanks; triploidy
Abstract:
... Early maturation has been one of the biological bottlenecks of commercializing Atlantic cod culture. To overcome the bottleneck, production of sterile fish through triploidy and other molecular techniques have been suggested and attempted. Although studies have been carried out on triploid performance of Atlantic cod, no studies have been conducted to see the performance of triploid fish at family ...
DOI:
10.1016/j.aquaculture.2019.03.013

86. Fatty Acids of the Three-Spined Stickleback (Gasterosteus aculeatus L.) from the White Sea

Author:
S. A. Murzina; Z. A. Nefedova; S. N. Pekkoeva; D. L. Lajus; N. N. Nemova
Source:
Applied biochemistry and microbiology 2019 v.55 no.1 pp. 73-77
ISSN:
0003-6838
Subject:
Gasterosteus aculeatus; adults; docosahexaenoic acid; docosapentaenoic acid; eicosapentaenoic acid; environmental factors; fatty acid composition; fish; gonads; ingredients; liver; muscles; physiological state; renewable resources; Arctic region
Abstract:
... The fatty acid composition of total lipids in the muscles, liver, and gonads of adult specimens of the three-spined stickleback from the White Sea has been studied. In particular, a high content of polyunsaturated fatty acids, mainly those of ω-3 families, was found in the gonads and muscles. Among these, essential eicosapentaenoic and docosahexaenoic acids, as well as docosapentaenoic acid, were ...
DOI:
10.1134/S0003683819010125

87. Fatty acids, sterols, phenolic compounds, and carotenoid changes in response to dietary inclusion of Ulva clathrata in shrimp Litopenaeus vannamei broodstock

Author:
Cristina Corral-Rosales; Denis Ricque-Marie; Lucia Elizabeth Cruz-Suárez; Olivia Arjona; Elena Palacios
Source:
Journal of applied phycology 2019 v.31 no.6 pp. 4009-4020
ISSN:
0921-8971
Subject:
Litopenaeus vannamei; Ulva clathrata; algae; antioxidants; arachidonic acid; breeding stock; carotenoids; diet; docosahexaenoic acid; females; gonads; hepatopancreas; highly unsaturated fatty acids; larvae; muscles; oocytes; phenolic compounds; phospholipids; reproductive performance; shrimp; sterols; vitellogenesis
Abstract:
... Changes in lipid reserves as a result of supplementing 3.4% Ulva clathrata meal in the diet (based on dry weight of all ingredienta) for Litopenaeus vannamei broodstock were evaluated in a commercial larval laboratory. The profile of fatty acids, sterols, carotenoids, and phenolic compounds in the gonad, hepatopancreas, and muscle of females with unilateral ablation was analyzed. Shrimp fed the Ul ...
DOI:
10.1007/s10811-019-01829-2

88. Female mice seek refuge from castrated males, but not intact or vasectomized males, mitigating a socially-induced glucocorticoid response

Author:
Teagan J. Gale; Michael G. Garratt; Robert C. Brooks
Source:
Physiology & behavior 2019 pp. -
ISSN:
0031-9384
Subject:
castration; females; glucocorticoids; gonads; males; mating behavior; sexual reproduction; social behavior; stress response
Abstract:
... Sexual conflict may be manifested during social interactions, shaping the costs of reproduction in sexually reproducing species. This conflict, and the physical necessity of intromission, can intensify the already costly nature of reproduction for female mammals. To identify and partition the costs that males inflict on females during mating and reproduction, we paired female mice with either othe ...
DOI:
10.1016/j.physbeh.2019.112678

89. Field ultrasound evaluation of some gestational parameters in jennies

Author:
Tiziana Nervo; Alessia Bertero; Mariagrazia Poletto; Paola Pregel; Roberta Leone; Valentina Toffoli; Leila Vincenti
Source:
Theriogenology 2019 v.126 pp. 95-105
ISSN:
0093-691X
Subject:
abdomen; asses; body weight; breeding season; breeds; conception; crossbreds; descriptive statistics; edema; fetal development; fetus; gender; gestational age; gonads; heart rate; monitoring; ovulation; parturition; pregnancy; thorax; umbilical arteries; velocimetry
Abstract:
... The aim of this study was to collect and analyze ultrasound measurements of fetal-maternal structures during normal and pathological pregnancies in jennies, a livestock species of growing interest. For two breeding seasons, 38 jennies of different breeds and crossbreeds aged between 3 and 18 years were monitored weekly by transrectal examination using a portable Esaote ultrasound (MyLab™ 30 GOLD V ...
DOI:
10.1016/j.theriogenology.2018.11.023

90. First Case of Zoonotic Tapeworm Adenocephalus cf. pacificus from Coho Salmon Oncorhynchus kisutch in Chile: Experimental Development Study

Author:
Patricio Torres; Eduardo Aedo; Ricardo Silva; Julio Thibaut; Pablo Torres-Frenzel
Source:
Comparative parasitology 2019 v.86 no.1 pp. 17-29
ISSN:
1525-2647
Subject:
Diphyllobothriidae; Oncorhynchus kisutch; adults; anadromous fish; antiparasitic agents; dogs; gonads; liver; marine fish; muscles; peritoneum; plerocercoids; prepatent period; rivers; scanning electron microscopy; spleen; stomach; tapeworms; Chile
Abstract:
... Adenocephalus pacificus (Cestoda: Diphyllobothriidae) is a fish foodborne zoonotic parasite whose stage of plerocercoid has been identified in marine fish. The objective of this study is to report for first time the infection by A. cf. pacificus in the anadromous Coho salmon, Oncorhynchus kisutch, from the Simpson River, Chile. During July 1997 and July 1998, the fish were examined for diphyllobot ...
DOI:
10.1654/1525-2647-86.1.17

91. First record of the nematode Echinocephalus pseudouncinatus (Gnathostomatidae, Spirurida) in an edible, commercial host, the pen shell Atrina maura (Bivalvia: Pinnidae)

Author:
M. Magali Gómez-Valdez; Liliana Carvalho-Saucedo; Lucía Ocampo; Ariel Cruz-Villacorta
Source:
Journal of invertebrate pathology 2019 pp. -
ISSN:
0022-2011
Subject:
Atrina maura; Gnathostomatidae; chlorophyll; data analysis; females; gnathostomiasis; gonads; health hazards; host-pathogen relationships; hyperpigmentation; juveniles; males; muscles; oocytes; parasites; parasitology; phagocytosis; seasonal variation; spawning; species identification; temperature; tissues; winter; Mexico
Abstract:
... We describe a nematode infestation of the Atrina maura, the most valuable pen shell fished in Mexico, for the first time. Observations by Mexican authorities indicated that parasites were found encysted in pen shell gonads. The aims of this study included: (i) to identify the parasite morphologically; (ii) to quantify the infestation in different tissues of the pen shell; and (iii) to establish th ...
DOI:
10.1016/j.jip.2019.107249

92. First report of the metacestode Caulobothrium sp. in the Peruvian scallop Argopecten purpuratus from Sechura Bay, Piura, Peru

Author:
Teresa Castro; Dante R. Mateo; Spencer J. Greenwood; Enrique C. Mateo
Source:
Parasitology research 2019 v.118 no.8 pp. 2369-2376
ISSN:
0932-0113
Subject:
Argopecten purpuratus; gonads; histopathology; metacestodes; nucleotide sequences; ovules; parasites; phylogeny; plerocercoids; ribosomal DNA; scallops; sequence homology; spring; surveys; tissues; Peru
Abstract:
... In recent parasitological surveys performed on the Peruvian scallop, Argopecten purpuratus, from bottom cultures of Sechura Bay, Piura, Peru, free and encysted metacestodes were frequently found in their gonads. The objective of this study was to identify this metacestode, determine their prevalence and intensity and briefly assess the histopathological impact in the affected tissues. A parasitolo ...
DOI:
10.1007/s00436-019-06361-3

93. Flow-related migration, juvenile dispersal and gonad development in two co-occurring mullet species, Mugil cephalus and Trachystoma petardi, in a regulated river system

Author:
D. J. Harding; D. T. Roberts; D. Sternberg; T. M. Mullins; M. J. Kennard; R. G. Dwyer
Source:
Marine & freshwater research 2019 v.70 no.8 pp. 1105-1115
ISSN:
1323-1650
Subject:
Mugil cephalus; acoustics; adults; catadromous fish; fish ladders; freshwater; gonads; habitats; juveniles; keratoconjunctivitis; migratory behavior; mullet; rivers; spawning; telemetry; transponders; weirs; Australia
Abstract:
... Catadromous fish species often use elevated flows to migrate from freshwater to downstream spawning grounds. However, in regulated river systems, artificial barriers and flow alteration can disrupt movement cues, affecting fish migration. Using a combination of acoustic telemetry, passive integrated transponder (PIT) tags and gonad maturity data, we assessed the migratory timing and flow requireme ...
DOI:
10.1071/MF18365

94. Gametogenesis of Rainbow Trout Parasalmo mykiss Cultivated from Hatching to Sexual Maturity at a Temperature of Approximately 20°С

Author:
O. V. Zelennikov; V. M. Golod
Source:
Journal of ichthyology 2019 v.59 no.1 pp. 78-89
ISSN:
0032-9452
Subject:
Oncorhynchus mykiss; females; fish; gonads; hatching; lipids; males; oocytes; resorption; sexual maturity; spermatogenesis; spermatozoa; temperature
Abstract:
... Gonadal development during the first reproductive cycle is studied in rainbow trout Parasalmo mykiss cultivated at approximately 20°С. The cultivation of the fish at this temperature leads to an increasing proportion of lipid and stromal tissue in ovaries, decrease of the number of previtellogenous oocytes, and to subsequent retardation of sexual maturation in the majority of females. At the age o ...
DOI:
10.1134/S0032945219010181

95. Gel properties of protein hydrolysates from trypsin-treated male gonad of scallop (Patinopecten yessoensis)

Author:
Jia-Nan Yan; Meng Zhang; Jun Zhao; Yue Tang; Jia-Run Han; Yi-Nan Du; Hui Jiang; Wen-Gang Jin; Hai-Tao Wu; Bei-Wei Zhu
Source:
Food hydrocolloids 2019 v.90 pp. 452-461
ISSN:
0268-005X
Subject:
Mizuhopecten yessoensis; cohesion; firmness; gelatin; gelation; gonads; high performance liquid chromatography; hydrocolloids; hydrolysates; hydrolysis; iota-carrageenan; loss modulus; males; models; molecular weight; nuclear magnetic resonance spectroscopy; peptides; polyacrylamide gel electrophoresis; protein hydrolysates; rheometers; scallops; storage modulus; texture; trypsin
Abstract:
... In order to provide a foundation for comprehensive utilization of scallop (Patinopecten yessoensis), the gel properties of hydrolysates from scallop male gonad (SMGHs) were studied. The hydrolysates were obtained from scallop male gonads (SMGs) by using trypsin. The changes in molecular mass of proteins were determined by SDS-PAGE and HPLC with a peptide separation column. The gel properties of SM ...
DOI:
10.1016/j.foodhyd.2018.12.050

96. Gene dosage of DAX-1, determining in sexual differentiation: duplication of DAX-1 in two sisters with gonadal dysgenesis

Author:
Mary García-Acero; Mónica Molina; Olga Moreno; Andrea Ramirez; Catalina Forero; Camila Céspedes; Juan Carlos Prieto; Jaime Pérez; Fernando Suárez-Obando; Adriana Rojas
Source:
Molecular biology reports 2019 v.46 no.3 pp. 2971-2978
ISSN:
0301-4851
Subject:
copy number variation; females; gene dosage; gene overexpression; genes; gonadal dysgenesis; gonads; histopathology; inheritance (genetics); neoplasms; quantitative polymerase chain reaction; sex reversal; sisters; testicular development
Abstract:
... Two sisters phenotypically normal females, presenting with tumor abdominal mass with histopathological findings of teratoma and gonadoblastoma associated to 46,XY male-to-female sex reversal syndrome, secondary to a duplication in DAX-1, possibly inherited of maternal gonadal mosaicism. Copy number variation and functional effects of the duplication were done by MLPA multiplex ligation-dependent p ...
DOI:
10.1007/s11033-019-04758-y

97. Geophysical survey of groundwater potential and radioactivity assessment of soil depth lithology for drinking water-quality determination

Author:
E. O. Agbalagba; O. N. Nenuwe; L. R. Owoade
Source:
Environmental earth sciences 2019 v.78 no.1 pp. 24
ISSN:
1866-6280
Subject:
absorbed dose; aquifers; drinking; geophysics; gonads; groundwater; neoplasms; potassium; radioactivity; radionuclides; radium; risk; sodium; soil depth; surveys; thorium; water quality; water table; Nigeria
Abstract:
... This research work evaluates the groundwater aquifer potential and radioactivity levels of the soil lithology depth of Agbor in Delta State Nigeria. Three geophysical surveys were conducted using vertical electrical sounding. The results show that the formation of the studied area has curve types KH, AA, and AH. Analysis of the layer thickness, resistivity, and transmissivity proposed specific lay ...
DOI:
10.1007/s12665-018-8023-0

98. Gonadal Maturation and Histological observations of S. curvifrons in River Jhelum Kashmir

Author:
Sauliheen Qadri; Tasaduq H. Shah; M.H. Balkhi; Bilal A. Bhat; F.A. Bhat; A.M. Najar; Oyas A. Asmi; Iram Farooq; Syed Aalia
Source:
Indian journal of animal research 2019 v.53 no.1 pp. 71-76
ISSN:
0976-0555
Subject:
Schizothorax; animal research; fish; gonadosomatic index; gonads; histology; rivers; India
Abstract:
... The objective of the present study is to describe the phases of gonadal development and determine the spawning season of Schizothorax curvifrons in River Jhelum Kashmir. A total of 298 fish specimen were studied to analyse the gonadosomatic index and maturity stages of S. curvifrons. Five maturity stages namely Immature phase, Preparatory phase, Maturing phase, Ripe/spawning phase and Spent phase ...
DOI:
10.18805/ijar.B-3469

99. Gonadal cycle and spawning of date mussel Lithophaga lithophaga (L.) (Bivalvia: Mytilidae) in Egyptian water

Author:
Amal R. Khafage; Fatma A. Abdel Razek; Somaya M. Taha; Hamdy A. Omar; Mahmoud A. Attallah; Rabab S. El-Deeb
Source:
Egyptian Journal of Aquatic Research (Online) 2019 v.45 no.3 pp. 293-299
ISSN:
2090-3278
Subject:
Lithophaga lithophaga; coasts; color; developmental stages; dioecy; females; gonads; histology; males; meat; mussels; sex ratio; sexual dimorphism; spawning; Egypt; Mediterranean Sea
Abstract:
... This study describes the gonads of Lithophaga lithophaga (Linnaeus, 1758) inhabiting the coast of Alexandria City, Egypt, on the Southeastern Mediterranean Sea. Investigated samples were collected from five sites situated between Sidi Gaber and Montaza. Seven hundred and forty six individuals were collected through one year from December 2017 to November 2018. Two hundred and thirty eight specimen ...
DOI:
10.1016/j.ejar.2019.04.001

100. Gonadal development and reproductive period of the characin Astyanax aff. bimaculatus (Characiformes: Characidae) in a tropical reservoir in southeastern Brazil

Author:
Francisco G. Araújo; Aparecida A. Nascimento; Iracema D. Gomes; Armando Sales; Beatriz A. Chagas de Oliveira
Source:
Zoologia 2019 v.36 pp. 1-14
ISSN:
1984-4689
Subject:
Astyanax; Neotropics; breeding season; condition factor; energy; females; gonadosomatic index; gonads; histology; lentic systems; lotic systems; males; methodology; oocytes; rivers; sex ratio; spawning; spermatogonia; spermatozoa; Brazil
Abstract:
... The gonadal development of the characin Astyanaxaff.bimaculatus from Funil Reservoir, an impoundment in the middle reaches of the Paraiba do Sul River in southeastern Brazil was analysed through histological, histochemical and histometric techniques, and the spawning season was determined. Unbalanced sex ratio was found, with females outnumbering and reaching larger sizes than males. The following ...
DOI:
10.3897/zoologia.36.e30610