U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Publication year rev 7981-2019 Remove constraint Publication year rev: 7981-2019 Subject term females Remove constraint Subject term: females Subject term gonads Remove constraint Subject term: gonads
Start Over

Search

110  Search Results

« Previous | 1 - 100 of 110 |
Number of results to display per page

Search Results

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 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

3. 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

4. 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

5. 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

6. 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

7. 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

8. 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

9. 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

10. 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

11. 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

12. 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

13. 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

14. 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

15. Characterization of the mouse white adipose tissue redox environment and associations with perinatal environmental exposures to bisphenol A and high-fat diets

Author:
Kari Neier; Elizabeth M. Marchlewicz; Leah D. Bedrosian; Dana C. Dolinoy; Craig Harris
Source:
Journal of nutritional biochemistry 2019 v.66 pp. 86-97
ISSN:
0955-2863
Subject:
bisphenol A; cysteine; endocrine-disrupting chemicals; environmental exposure; females; glutathione; gonads; high fat diet; high performance liquid chromatography; mice; obesity; pathophysiology; physiology; redox potential; risk; thiols; white adipose tissue
Abstract:
... White adipose tissue (WAT) plays an important role in obesity pathophysiology. Redox signaling underlies several aspects of WAT physiology; however, the thiol redox environment of WAT has not yet been fully characterized. Dietary and endocrine disrupting chemical (EDC) exposures during development can transiently impact the cellular redox environment, but it is unknown whether these exposures can ...
DOI:
10.1016/j.jnutbio.2019.01.005
PubMed:
30776609
PubMed Central:
PMC7003727

16. 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

17. 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

18. 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

19. 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

20. 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

21. 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

22. 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

23. 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

24. 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

25. 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

26. 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

27. 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

28. 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

29. 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

30. 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

31. 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

32. 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

33. 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

34. 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

35. 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

36. 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

37. 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

38. 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

39. 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

40. 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

41. 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

42. 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

43. 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

44. 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

45. Gonadal hormones affect alcohol drinking, but not cue+yohimbine-induced alcohol seeking, in male and female rats

Author:
Megan L. Bertholomey; Mary M. Torregrossa
Source:
Physiology & behavior 2019 v.203 pp. 70-80
ISSN:
0031-9384
Subject:
alcohol drinking; antagonists; cocaine; estradiol; estrogen receptors; ethanol; etiology; extinction; females; gender differences; gonadectomy; gonads; males; models; neurons; rats; testosterone
Abstract:
... Alcohol use disorder (AUD) is a chronic, relapsing disease characterized by maladaptive patterns of alcohol drinking and seeking. Though sex differences exist in the etiology of AUD, much remains to be elucidated concerning the mechanisms underlying sex-related vulnerability to developing excessive alcohol-motivated behavior. While a large body of evidence points to an important role of circulatin ...
DOI:
10.1016/j.physbeh.2017.10.025
PubMed:
29106989
PubMed Central:
PMC5920799

46. Gonadal impairment and parental transfer of tris (2-butoxyethyl) phosphate in zebrafish after long-term exposure to environmentally relevant concentrations

Author:
Yangyang Huang; Jue Liu; Liqin Yu; Chunsheng Liu; Jianghua Wang
Source:
Chemosphere 2019 v.218 pp. 449-457
ISSN:
0045-6535
Subject:
Danio rerio; bioaccumulation; body length; body weight; chronic exposure; females; gonadosomatic index; gonads; heart rate; larvae; males; phosphates; progeny; reproductive toxicology; somatomedins; toxicity; transcription (genetics)
Abstract:
... Tris (2-butoxyethyl) phosphate (TBOEP) is a ubiquitous environmental contaminant due to its overuse. TBOEP has been found to cause reproductive toxicity and endocrine disruption during acute toxic experiment. In this study, we examined the effects of TBOEP on growth in initial generation (F0) zebrafish and transgenerational effects on growth of first generation (F1) larvae after parental long-term ...
DOI:
10.1016/j.chemosphere.2018.11.139

47. Gonadal supporting cells acquire sex-specific chromatin landscapes during mammalian sex determination

Author:
S. Alexandra Garcia-Moreno; Christopher R. Futtner; Isabella M. Salamone; Nitzan Gonen; Robin Lovell-Badge; Danielle M. Maatouk
Source:
Developmental biology 2019 v.446 no.2 pp. 168-179
ISSN:
0012-1606
Subject:
cell differentiation; chromatin; epigenetics; females; genes; gonads; males; mice; mutation; regulatory sequences; sex determination; sexual development
Abstract:
... Cis-regulatory elements are critical for the precise spatiotemporal regulation of genes during development. However, identifying functional regulatory sites that drive cell differentiation in vivo has been complicated by the high numbers of cells required for whole-genome epigenetic assays. Here, we identified putative regulatory elements during sex determination by performing ATAC-seq and ChIP-se ...
DOI:
10.1016/j.ydbio.2018.12.023
PubMed:
30594505
PubMed Central:
PMC6368449

48. Gonadal transcriptomic analysis and identification of candidate sex-related genes in Mesocentrotus nudus

Author:
Zhi-Hui Sun; Jian Zhang; Wei-Jie Zhang; Ya-Qing Chang
Source:
Gene 2019 v.698 pp. 72-81
ISSN:
0378-1119
Subject:
Mesocentrotus; databases; females; germ cells; gonads; high-throughput nucleotide sequencing; males; mariculture; models; oogenesis; proteins; sex determination; sexual development; spawning; spermatogenesis; supply balance; transcriptome; transcriptomics; unigenes
Abstract:
... The edible sea urchin, Mesocentrotus nudus, is both an economically important mariculture species and an excellent model for studying reproductive development. The gonads are the only edible parts of sea urchins and increasing market demand for high-quality gonads has prompted increasing amounts of research into the molecular mechanisms of reproduction. Using a high-throughput sequencing technolog ...
DOI:
10.1016/j.gene.2019.02.054

49. Gonadal, body color, and genotoxic alterations in Lithobates catesbeianus tadpoles exposed to nonylphenol

Author:
María Florencia Scaia; Lara Salgueiro de Gregorio; Lilian Franco-Belussi; Maysa Succi-Domingues; Classius de Oliveira
Source:
Environmental science and pollution research international 2019 v.26 no.22 pp. 22209-22219
ISSN:
0944-1344
Subject:
Lithobates catesbeianus; amphibians; aquatic environment; biomarkers; color; detergents; endocrine-disrupting chemicals; erythrocytes; females; genotoxicity; gonads; histology; males; mutagens; nonylphenols; oocytes; oogenesis; pesticides; pigmentation; tadpoles
Abstract:
... Endocrine disrupting chemicals are one of the most important factors contributing to worldwide amphibian decline. The 4-nonylphenol (NP) is a degradation product of several compounds, such as detergents and pesticides, affecting the aquatic environment. Here, we test whether treatment with NP has an effect on developing ovarian tissue, nuclear abnormalities in erythrocytes, and body darkness in pr ...
DOI:
10.1007/s11356-019-05403-8

50. Hairstreak butterflies (Lepidoptera, Lycaenidae) and evolution of their male secondary sexual organs

Author:
Ananda Regina Pereira Martins; Marcelo Duarte; Robert K. Robbins
Source:
Cladistics 2019 v.35 no.2 pp. 173-197
ISSN:
0748-3007
Subject:
Lycaenidae; allopatry; females; gonads; males; phylogeny; prediction; reproductive isolation; sexual selection; sisters; sympatry
Abstract:
... Hairstreak butterflies in the Atlides Section of the Eumaeini are biologically notable for a diverse array of male secondary sexual organs. A “species recognition” hypothesis postulates that females use these organs to choose between conspecific and non‐conspecific males, thereby promoting reproductive isolation. Alternately, a “sexual selection” hypothesis posits that females use these organs to ...
DOI:
10.1111/cla.12355

51. Histological assessment of seasonal gonad maturation of red mullet (Mullus barbatus L., 1758) in Antalya Bay of Mediterranean in Turkey

Author:
Beytullah Ahmet Balci; Yusuf Aktop
Source:
Journal of applied animal research 2019 v.47 no.1 pp. 63-71
ISSN:
0974-1844
Subject:
Mullus barbatus; animal research; eggs; females; fish; formaldehyde; gonads; histology; males; spermatozoa; spermiation; spermiogenesis; vitellogenesis
Abstract:
... In this study, gonadal changes of red mullet (Mullus barbatus L., 1758) were investigated by histologically in Antalya Bay of Eastern Mediterranean in Turkey. A total of 890 specimens were collected monthly between May 2015 and October 2016 from fishing boats. The age of 890 red mullets was found to range from 0⁺ to VI⁺. Their gonads were dissected and fixed in 10% neutral buffered formaldehyde. T ...
DOI:
10.1080/09712119.2018.1564669

52. Homologous Robertsonian Translocations: Spectrum, Sex Ratios, and Reproductive Risks

Author:
N. V. Kovaleva
Source:
Russian journal of genetics 2019 v.55 no.1 pp. 10-23
ISSN:
1022-7954
Subject:
Robertsonian translocation; abortion (animals); acrocentric chromosomes; algorithms; cell lines; counseling; epidemiology; females; gonads; inheritance (genetics); karyotyping; male sterility; males; patients; progeny; risk; sex ratio; spermatogenesis; trisomics; women
Abstract:
... Robertsonian translocations/isochromosomes formed by homologous acrocentric chromosomes are rare, and consequently their epidemiology has not been well investigated. This study, based on the analysis of published data including systematic studies of patients with reproductive disorders and individual reports on carriers of homologous translocation (HT), was conducted to determine the major epidemi ...
DOI:
10.1134/S1022795419010095

53. Identification of Hc-β-catenin in freshwater mussel Hyriopsis cumingii and its involvement in innate immunity and sex determination

Author:
Guiling Wang; Feifei Liu; Zhicheng Xu; Jinyuan Ge; Jiale Li
Source:
Fish & shellfish immunology 2019 v.91 pp. 99-107
ISSN:
1050-4648
Subject:
Aeromonas hydrophila; Hyriopsis cumingii; amino acids; beta catenin; cell differentiation; females; freshwater mussels; genes; gills; gonads; hemocytes; immune response; in situ hybridization; innate immunity; kidneys; lipopolysaccharides; liver; males; messenger RNA; muscles; neurodevelopment; open reading frames; quantitative polymerase chain reaction; sex determination; shellfish
Abstract:
... β-catenin is a multifunctional protein that participates in a variety of physiological activities, including immune regulation, sex determination, nervous system development and, cell differentiation. However, the function of β-catenin in freshwater mussel Hyriopsis cumingii remains unclear. Herein, the gene encoding β-catenin from H. cumingii (Hc-β-catenin) was cloned and characterised. The full- ...
DOI:
10.1016/j.fsi.2019.05.009

54. Identification of a germline‐expression promoter for genome editing in Bombyx mori

Author:
Jun Xu; Rong‐Mei Chen; Shu‐Qing Chen; Kai Chen; Lin‐Meng Tang; De‐Hong Yang; Xu Yang; Yong Zhang; Hong‐Sheng Song; Yong‐Ping Huang
Source:
Insect science 2019 v.26 no.6 pp. 991-999
ISSN:
1672-9609
Subject:
Bombyx mori; cultured cells; females; fluorescence; gene editing; genes; genomics; gonads; green fluorescent protein; larvae; promoter regions; silkworms; transgenic insects; tubulin; vitellogenin
Abstract:
... Identification of stage‐ and tissue‐specific cis‐regulatory elements will enable more precise genomic editing. In previous studies of the silkworm Bombyx mori, we identified and characterized several tissue‐ and sex‐specific cis‐regulatory elements using transgenic technology, including a female‐ and fat body‐specific promoter, vitellogenin, testis‐specific promoters, Radial spoke head 1 (BmR1) an ...
DOI:
10.1111/1744-7917.12657

55. Identification of gnrh2 and gnrh3 and their expression during brood pouch growth and short-term benzo(a)pyrene exposure in lined seahorse (Hippocampus erectus)

Author:
Wenqiang Wang; Jun Chen; Yan Fang; Bin Wang; Qiang Zou; Lei Wang; Wenwen Zhang; Xueying Huang; Haoyue Lv; Chenxiao Zhang; Kai Wang
Source:
Comparative biochemistry and physiology 2019 v.225 pp. 108579
ISSN:
1532-0456
Subject:
Hippocampus erectus; benzo(a)pyrene; brain; endocrine-disrupting chemicals; estradiol; females; fish; genes; gonadotropin-releasing hormone; gonads; males; messenger RNA; reproduction; testosterone
Abstract:
... Gonadotropin-releasing hormones (GnRH) regulate gonadal growth of teleosts. Benzo(a)pyrene (BaP) functions as a reproductive endocrine disruptor. Furthermore, endocrine regulation on brood pouch growth of Syngnathidaes is elusive. To better understand the role of GnRH in brood pouch growth and effects of BaP on reproductive endocrine in lined seahorse (Hippocampus erectus), gnrh2 and gnrh3 genes w ...
DOI:
10.1016/j.cbpc.2019.108579

56. Identification of steroid hormones and fatty acids during gonadal maturation of spiny lobster Panulirus homarus

Author:
Yudha Trinoegraha Adiputra; Muhammad Zairin jr; Muhammad Agus Suprayudi; Wasmen Manalu; Widanarni
Source:
Invertebrate reproduction & development 2019 v.63 no.2 pp. 77-87
ISSN:
2157-0272
Subject:
Panulirus homarus; breeding stock; captive animals; females; gonads; hatcheries; lobsters; males; octanoic acid; oleic acid; oogenesis; palmitic acid; stearic acid; steroid hormones; thyroxine
Abstract:
... Information on steroid hormones and fatty acids that play roles in lobster reproduction is still very limited although the data are indispensable to seed production in hatchery. The study was designed to identify steroid hormones and fatty acids during gonadal maturation of spiny lobster (Panulirus homarus). Male spiny lobsters were treated with and without thyroxine injection. Female spiny lobste ...
DOI:
10.1080/07924259.2018.1549114

57. Impact of gonad weight on the length-weight relationships of river catfish (Clupisoma garua) in Bangladesh

Author:
Yeasmin Akter; Md. Hafiz All Hosen; Md. Idris Miah; Zoarder Faruque Ahmed; Mousumi Sarker Chhanda; Sheik Istiak Md. Shahriar
Source:
Egyptian Journal of Aquatic Research (Online) 2019 v.45 no.4 pp. 375-379
ISSN:
2090-3278
Subject:
Clupisoma; analysis of covariance; biochemical pathways; body length; body weight; catfish; females; food availability; gonads; males; rivers; summer; temperature; Bangladesh
Abstract:
... This study was intended to assess the effect of gonadal weight on the length-weight relationships for year-round samples of river catfish (Clupisoma garua) collected from Old Brahmaputra River, Bangladesh. The standard length (SL) and body weight (BW) of females varied from 11.8 to 27.8 cm and 23.26 g to 272.23 g. Likewise, the length of male ranged from 8.97 to 18.9 cm and weight varied from 8.44 ...
DOI:
10.1016/j.ejar.2019.10.003

58. Induction of Gonadal Development in Protogynous Grouper with Orally Delivered FSH DNA

Author:
Peter Palma; Josephine Nocillado; Joshua Superio; Evelyn Grace de Jesus-Ayson; Felix Ayson; Akihiro Takemura; Ming Wei Lu; Abigail Elizur
Source:
Marine biotechnology 2019 v.21 no.5 pp. 697-706
ISSN:
1436-2228
Subject:
Mycteroperca tigris; breeding; chitosan; encapsulation; estradiol; females; follicle-stimulating hormone; gene expression; genes; glycoproteins; gonads; grouper; human chorionic gonadotropin; juveniles; males; messenger RNA; oocytes; oral administration; ovarian development; peptides; plasmids; protein content; protogyny; sex reversal; steroid hormones; testosterone
Abstract:
... The availability of sexually mature fish often dictates the success of its captive breeding. In this study, we induced reproductive development in juvenile protogynous tiger grouper through oral administration of a plasmid (p) containing an engineered follicle-stimulating hormone (FSH). An expression construct (pcDNA3.1) was designed to express a single-chain FSH consisting of giant grouper FSH β- ...
DOI:
10.1007/s10126-019-09914-w

59. Influence of gonadal development on metal accumulation in the Portuguese oyster, Crassostrea angulata, in subtropical areas

Author:
Bo Shi; Yidi Wu; Long Zhou; Weiwei You; Caihuan Ke
Source:
Aquaculture research 2019 v.50 no.4 pp. 1142-1152
ISSN:
1355-557X
Subject:
Crassostrea angulata; biotic factors; cadmium; copper; diploidy; energy; females; gametogenesis; glycogen; gonadosomatic index; gonads; human health; lead; males; manganese; models; oysters; somatic cells; triploidy; zinc; China
Abstract:
... Metal enrichment makes oyster considered to be an appropriate food source for trace elements, but excessive accumulation can threaten human health. Reproduction is an important biotic factor that affects the metal accumulation in oysters. However, the influence of continuous gonad development model on metal accumulation in some subtropical oysters is still unclear. The present study addresses the ...
DOI:
10.1111/are.13988

60. Integrated metabolomic and transcriptomic analyses suggest that high dietary lipid levels facilitate ovary development through the enhanced arachidonic acid metabolism, cholesterol biosynthesis and steroid hormone synthesis in Chinese sturgeon (Acipenser sinensis)

Author:
Xiaoqian Leng; Hai Zhou; Qingsong Tan; Hao Du; Jinping Wu; Xufang Liang; Shan He; Qiwei Wei
Source:
British journal of nutrition 2019 v.122 no.11 pp. 1230-1241
ISSN:
1475-2662
Subject:
Acipenser sinensis; arachidonic acid; biosynthesis; blood serum; captive animals; cholesterol; dietary fat; droplets; endangered species; estradiol; experimental diets; fatty acid metabolism; females; gonads; lipid content; metabolomics; muscles; oocytes; ovarian development; steroid hormones; sturgeon; transcriptomics; vitellogenesis; China
Abstract:
... Chinese sturgeon (Acipenser sinensis) is an endangered species, listed as a grade I protected animal in China. The females rarely successfully develop their gonads from stage II to III in captivity, which handicaps the propagation of cultured Chinese sturgeon. The present study aimed to understand the effects of dietary lipid level on the ovarian development and the related regulation mechanism in ...
DOI:
10.1017/S0007114519002010

61. Lipid and Fatty Acid Status of the Liver and Gonads of the Three-Spined Stickleback Gasterosteus aculeatus (Gastrosteidae) from Different Spawning Grounds in the White Sea

Author:
S. A. Murzina; Z. A. Nefedova; S. N. Pekkoeva; V. P. Voronin; D. L. Lajus; T. S. Ivanova; N. N. Nemova
Source:
Biology bulletin of the Russian Academy of Sciences 2019 v.46 no.1 pp. 82-91
ISSN:
1062-3590
Subject:
Gasterosteus aculeatus; body weight; docosahexaenoic acid; eicosapentaenoic acid; females; fish; gonads; liver; palmitoleic acid; phospholipids; spawning; triacylglycerols; viability; Russia
Abstract:
... The content of the total lipids, including structural and storage, and fatty acids (FAs) was evaluated in the liver and gonads of females of the three-spined stickleback Gasterosteus aculeatus from different spawning grounds of the White Sea: in Sel’dyanaya Inlet and Kolyushkovaya Lagoon (Kandalaksha Bay), and in Konyukhov Bay (Onega Bay). The content of total lipids in the gonads was high (from 1 ...
DOI:
10.1134/S1062359018060080

62. Lipid and fatty acid profiles of gametes and spawned gonads of Arbacia dufresnii (Echinodermata: Echinoidea): sexual differences in the lipids of nutritive phagocytes

Author:
M. Enriqueta Díaz de Vivar; Erica V. Zárate; Tamara Rubilar; Lucía Epherra; Marisa G. Avaro; Mary A. Sewell
Source:
Marine biology 2019 v.166 no.7 pp. 96
ISSN:
0025-3162
Subject:
Arbacia; carbohydrates; eggs; fatty acid composition; fatty acids; females; gametogenesis; gonads; lipid content; males; nutrients; phagocytes; spawning; spermatozoa
Abstract:
... Sea urchin gonads contain nutritive phagocytes (NP) that store nutrients such as protein, lipid and carbohydrates for use during the production of gametes. While there is some information on the role of protein, particularly major yolk protein (MYP), during gametogenesis, very little is known about the role of lipids and their component fatty acids. We compared the lipid and FA profile of mature A ...
DOI:
10.1007/s00227-019-3544-y

63. Long-Term Exposure to Environmental Concentrations of Azoxystrobin Delays Sexual Development and Alters Reproduction in Zebrafish (Danio rerio)

Author:
Fangjie Cao; Christopher J. Martyniuk; Peizhuo Wu; Feng Zhao; Sen Pang; Chengju Wang; Lihong Qiu
Source:
Environmental science & technology 2019 v.53 no.3 pp. 1672-1679
ISSN:
1520-5851
Subject:
Danio rerio; adverse effects; azoxystrobin; chronic exposure; embryo (animal); females; fish; gonads; growth retardation; males; messenger RNA; parents; rearing; reproduction; sexual development; vitellogenin
Abstract:
... The strobilurin fungicide azoxystrobin (AZO) can induce adverse effects in aquatic organisms, but data are lacking on endpoints associated with sexual development and reproduction following chronic exposure to AZO. In this study, zebrafish embryos (F0) at 2–4 h postfertilization (hpf) were exposed to 0.2, 2.0, and 20.0 μg/L AZO until 120 d postfertilization (dpf). Decreased male ratio and increase ...
DOI:
10.1021/acs.est.8b05829

64. Manipulation of photoperiod perception advances gonadal growth but not laying date in the great tit

Author:
Lucia Salis; Samuel P. Caro; Roelof A. Hut; Louis Vernooij; Marcel E. Visser
Source:
Journal of avian biology 2019 v.50 no.10 pp. -
ISSN:
0908-8857
Subject:
Parus major; birds; breeding; environmental factors; evolution; feathers; females; global warming; gonads; head; molting; oviposition; reproductive success; spring
Abstract:
... In seasonal environments, organisms use biotic and abiotic cues to time various biological processes that are crucial for growth, survival and reproductive success. Photoperiod is the best‐known cue used to regulate gonadal development, migration and moult of many animal species. In birds, the relationship between photoperiod and gonadal development is clearly established, but we have little under ...
DOI:
10.1111/jav.02197

65. Maternal exercise before and during pregnancy alleviates metabolic dysfunction associated with high-fat diet in pregnant mice, without significant changes in gut microbiota

Author:
Eunhee Chung; Katherine A. Grue; Gurvinder Kaur; Brian Mallory; Christian R. Serrano; Sarah L. Ullevig; Kameswara Rao Kottapalli; Soo Chan Lee; Jannette M. Dufour; Chwan-Li Shen; Masataka Umeda
Source:
Nutrition research 2019 v.69 pp. 42-57
ISSN:
0271-5317
Subject:
Actinobacteria; Bacteroidetes; Deferribacteres; Firmicutes; Verrucomicrobia; blood serum; body weight; cecum; dysbiosis; exercise; females; food intake; glucose; gonads; high density lipoprotein; high fat diet; homeostasis; hyperinsulinemia; insulin; insulin resistance; intestinal microorganisms; islets of Langerhans; leptin; low fat diet; mice; muscles; pregnancy; subcutaneous fat; visceral fat
Abstract:
... Although maternal exercise before and during pregnancy is beneficial, the effects of exercise on microbiota changes during pregnancy are unknown. Here we tested the hypothesis that maternal exercise before and during pregnancy would positively affect glucose homeostasis, pancreatic cell function, and gut microbiota dysbiosis in high-fat diet (HFD) fed dams. Female C57BL/6 mice were fed either a HF ...
DOI:
10.1016/j.nutres.2019.08.002

66. Meiotic gynogenesis with heterologous sperm in the mandarin fish Siniperca chuatsi and evidence for female homogamety

Author:
Weiwei Cheng; Xiaomu Yu; Kai Yang; Jingou Tong; Sihua Zhu; Qingyun Wang; Rulong Xia; Bo Li; Beide Fu; Guoqiao Deng
Source:
Aquaculture research 2019 v.50 no.11 pp. 3286-3294
ISSN:
1355-557X
Subject:
Siniperca chuatsi; Siniperca scherzeri; adults; aquaculture; breeding; diploidy; females; fish; gonads; gynogenesis; histology; irradiation; males; meiosis; microsatellite repeats; mothers; progeny; sex determination; sex determination analysis; sexual dimorphism; spermatozoa; China
Abstract:
... The mandarin fish Siniperca chuatsi is a historically important aquaculture species in China and exhibits sexually dimorphic growth. However, sex determination of this fish remains unclear so far. In this study, we induced meiotic gynogenesis in S. chuatsi using irradiated heterologous sperm from spotted mandarin fish (Siniperca scherzeri) to uncover its mechanism of sex determination. Up to 7.52% ...
DOI:
10.1111/are.14286

67. Mercury and selenium distribution in key tissues and early life stages of Yellow Perch (Perca flavescens)

Author:
Melissa Khadra; Dolors Planas; Philippe Brodeur; Marc Amyot
Source:
Environmental pollution 2019 v.254 pp. 112963
ISSN:
0269-7491
Subject:
Perca flavescens; bioaccumulation; brain; egg masses; females; fish; gonads; juveniles; lakes; larvae; liver; mercury; methylmercury compounds; muscles; ontogeny; selenium; tissues; toxicity; Quebec
Abstract:
... Whereas early life stages are usually considered as particularly sensitive to both organic and inorganic contaminants, field studies assessing contaminant bioaccumulation in these stages are scarce. Selenium (Se) is thought to counteract Hg toxic effects when it is found at Se:Hg molar ratios above 1. However, the variation of this ratio in key fish tissues of different early life stages is mostly ...
DOI:
10.1016/j.envpol.2019.112963

68. Molecular cloning, expression pattern analysis, and in situ hybridization of a Transformer-2 gene in the oriental freshwater prawn, Macrobrachium nipponense (de Haan, 1849)

Author:
Yabing Wang; Shubo Jin; Hongtuo Fu; Hui Qiao; Shengming Sun; Wenyi Zhang; Sufei Jiang; Yongsheng Gong; Yiwei Xiong; Yan Wu
Source:
3 Biotech 2019 v.9 no.6 pp. 205
ISSN:
2190-572X
Subject:
Macrobrachium nipponense; RNA; amino acids; arthropods; complementary DNA; divergent evolution; embryogenesis; females; genes; gonads; in situ hybridization; males; molecular cloning; nauplii; oocytes; open reading frames; quantitative polymerase chain reaction; spermatocytes
Abstract:
... In this study, we isolated a full-length cDNA sequence from Macrobrachium nipponense and investigated its gene function. We named the gene Mntra-2a because of high similarities and close evolutionary divergence with arthropod tra-2. The full-length cDNA of Mntra-2a was 1293 bp, consisting of a 212 bp 5′ UTR, a 268 bp 3′ UTR, and an ORF of 813 bp encoding 270 amino acids. It contained an RNA recogn ...
DOI:
10.1007/s13205-019-1737-1
PubMed:
31139536
PubMed Central:
PMC6505021

69. Morphometric length-weight relationships of wild penaeid shrimps in Malindi-Ungwana Bay: Implications to aquaculture development in Kenya

Author:
Rashid Mohamed Kaka; Joseph Owino Jung'a; Mohamed Badamana; Renison Kahindi Ruwa; Harrison Charo Karisa
Source:
Egyptian Journal of Aquatic Research (Online) 2019 v.45 no.2 pp. 167-173
ISSN:
2090-3278
Subject:
Fenneropenaeus indicus; Marsupenaeus japonicus; Melicertus canaliculatus; Metapenaeus monoceros; Penaeus monodon; Penaeus semisulcatus; allometry; body length; body weight; females; fisheries; gonads; monsoon season; morphometry; shrimp culture; spawning; Kenya
Abstract:
... The present investigation describes the biology of penaeid shrimps and their fishery studies on morphometric length-weight relationships estimated during the two monsoon seasons from Malindi–Ungwana Bay in Kenya. A total of 1238 penaeid shrimps belonging to Fenneropenaeus indicus, Penaeus monodon, Marsupenaeus japonicus, Metapenaeus monoceros, Penaeus canaliculatus and Penaeus semisulcatus were co ...
DOI:
10.1016/j.ejar.2019.06.003

70. Multiplex PCR for the rapid detection of insulin-like growth factor in the Pacific oyster, Crassostrea gigas: a useful indicator for growth assessment

Author:
Ji-sung Moon; Youn Hee Choi
Source:
Molecular biology reports 2019 v.46 no.1 pp. 1023-1031
ISSN:
0301-4851
Subject:
Crassostrea gigas; animal tissues; annealing; females; fish; gonads; insulin-like growth factor binding proteins; males; oyster culture; peptide receptors; polymerase chain reaction; rapid methods; shellfish; somatomedins; temperature; tissue weight; winter
Abstract:
... Insulin-like growth factor (IGF) expression plays a critical role in the endocrine regulation of proliferation, differentiation, and growth in shellfish as well as in fish. The Pacific oyster, Crassostrea gigas, is a significant aquaculture species that comprises a large percentage of the Korean shellfish industry; moreover, its growth is economically important in aquaculture. However, when measur ...
DOI:
10.1007/s11033-018-4559-z

71. Perinatal phthalate and high-fat diet exposure induce sex-specific changes in adipocyte size and DNA methylation

Author:
Laura Moody; Daniel Kougias; Paul M. Jung; Isabel Digan; Aaron Hong; Aleksandra Gorski; Hong Chen; Janice Juraska; Yuan-Xiang Pan
Source:
Journal of nutritional biochemistry 2019 v.65 pp. 15-25
ISSN:
0955-2863
Subject:
DNA methylation; adipocytes; adipogenesis; animal feeding; biochemical pathways; body weight; dams (mothers); endocrine-disrupting chemicals; environmental factors; eosin; females; gene expression; genes; gonads; high fat diet; histology; lactation; lipoprotein lipase; males; oral administration; phenotype; phthalates; pregnancy; progeny; rats; staining; transcription (genetics); triacylglycerols
Abstract:
... Environmental factors such as diet and endocrine-disrupting chemicals have individually been shown to mediate metabolic function. However, the underlying mechanism by which the combination disrupts adipocyte morphology and fat storage remains unknown. The current study evaluated early-life programming by diet and phthalate exposure. During gestation and lactation, pregnant Long–Evans hooded rat da ...
DOI:
10.1016/j.jnutbio.2018.11.005
PubMed:
30599393
PubMed Central:
PMC6547370

72. Physiological Effects of Limb Loss on the Asian Shore Crab, Hemigrapsus sanguineus

Author:
Ashley Vernier; Blaine D. Griffen
Source:
Northeastern naturalist 2019 v.26 no.4 pp. 761-771
ISSN:
1092-6194
Subject:
Hemigrapsus sanguineus; biodiversity; coasts; crabs; ecosystems; energy; females; gonads; hepatopancreas; indigenous species; invasive species; males; population density; rye; state parks; Eastern United States
Abstract:
... Invasive species pose a considerable threat to biodiversity and the functioning of the ecosystem. Hemigrapsus sanguineus (Asian Shore Crab) has outnumbered native crabs on the northeast coast of North America since shortly after its introduction in the late 1980s. Asian Shore Crabs occur in high densities along much of the Atlantic coast from Maine to North Carolina. Our research focused on the re ...
DOI:
10.1656/045.026.0407

73. Plasma insulin-like growth factor-1 is unrelated to female reproductive development in a wild population of Dolly Varden charr Salvelinus malma (Walbaum, 1792)

Author:
James J. Nagler; Peter Bangs; Lea Medeiros; Andrew Pierce
Source:
Hydrobiologia 2019 v.840 no.1 pp. 137-141
ISSN:
0018-8158
Subject:
Salvelinus malma; blood plasma; females; fish; gonadosomatic index; gonads; growing season; insulin-like growth factor I; lakes; morphometry; reproduction; seasonal variation; sequential sampling; spawning; summer; Alaska
Abstract:
... Insulin-like growth factors (IGFs) are endocrine agents that signal growth in fishes. Because of the interplay between growth and reproduction, endocrine control of the growth axis is thought to have a connection to the reproductive axis. Seasonal patterns and relationships between IGF-1, fish condition, and gonadal development were investigated in a wild population of female Dolly Varden charr Sa ...
DOI:
10.1007/s10750-018-3866-7

74. Possible involvement of PKC/MAPK pathway in the regulation of GnRH by dietary arachidonic acid in the brain of male tongue sole Cynoglossus semilaevis

Author:
Houguo Xu; Bo Sun; Zhangbin Liao; Elena Pribytkova; Qinggong Zhang; Yuliang Wei; Mengqing Liang
Source:
Aquaculture research 2019 v.50 no.12 pp. 3528-3538
ISSN:
1355-557X
Subject:
Cynoglossus semilaevis; aquaculture; arachidonic acid; blood serum; brain; experimental diets; fatty acid composition; females; gene expression; gonadotropin-releasing hormone; gonadotropins; gonads; long chain polyunsaturated fatty acids; males; marine fish; mitogen-activated protein kinase; phosphatidylinositol 3-kinase; protein kinase C; steroidogenesis; testosterone; transcription factor NF-kappa B
Abstract:
... Our previous studies have indicated that dietary arachidonic acid (ARA) significantly affects the gonadal steroidogenesis in the marine teleost tongue sole Cynoglossus semilaevis, and this effect was more positive in male fish than in female fish (Aquaculture, 468, 378–385). As a following up study, the present study was further aimed at investigating the possible mechanisms in the brain mediating ...
DOI:
10.1111/are.14307

75. Potash mining effluents induce moderate effects on histopathological and physiological endpoints of adult zebrafish (Danio rerio)

Author:
Katja Irob; Marit Wagler; Nora Baberschke; Thomas Meinelt; Werner Kloas
Source:
Science of the total environment 2019 v.694 pp. 133471
ISSN:
0048-9697
Subject:
Danio rerio; adults; cortisol; effluents; environmental factors; exposure duration; females; fish; follicle-stimulating hormone; gene expression; gills; gonads; histopathology; ions; luteinizing hormone; magnesium; males; messenger RNA; mining; models; monitoring; oocytes; potassium; prolactin; rivers; somatotropin; species abundance; stress response; Germany
Abstract:
... Stress in fish can be caused by a variety of factors and has the potential to evoke stress responses leading to a reduction of physical condition and of health. The river Werra (Germany) presents a severe case of secondary salinisation caused by potash mining activities. The model organism Danio rerio was exposed to different ion-concentrations depicting current (HT) and future (LT) threshold valu ...
DOI:
10.1016/j.scitotenv.2019.07.277

76. Preliminary observations of the reproductive biology of the Frenchman seabream Polysteganus baissaci (Sparidae) from Mauritius

Author:
L Caussy; C Appadoo; WHH Sauer; WM Potts
Source:
African journal of marine science 2019 v.41 no.4 pp. 455-461
ISSN:
1814-2338
Subject:
Sparidae; adults; females; fish; fisheries; fishing boats; gonadosomatic index; gonads; harvesting; males; protogyny; sex ratio; spawning; temperature; Mauritius
Abstract:
... The Frenchman seabream Polysteganus baissaci is an important commercial fish species found on the slopes of the fishing banks of the exclusive economic zone of Mauritius. Exploitation of this species started in 2007, and it is targeted using hydraulic reels with baited hooks. The introduction of suitable management measures is important for this fishery and a sound understanding of the biology is ...
DOI:
10.2989/1814232X.2019.1688680

77. Progesterone affects sex differentiation and alters transcriptional of genes along circadian rhythm signaling and hypothalamic‐pituitary‐gonadal axes in juvenile Yellow River Carp (Cyprinus carpio var.)

Author:
Xiaohua Xia; Peijin Wang; Ruyan Wan; Zhongjie Chang; Qiyan Du
Source:
Environmental toxicology 2019 v.34 no.11 pp. 1255-1262
ISSN:
1520-4081
Subject:
Cyprinus carpio; animal husbandry; circadian rhythm; endometrium; females; fish; gene expression; genes; gonads; humans; juveniles; males; oocytes; progesterone; sex ratio; sexual development; sperm motility; spermatogenesis; steroid hormones; transcription (genetics); Yellow River
Abstract:
... Progesterone (P4) is a biologically active steroid hormone that is involved in the regulation of oocyte growth and maturation, as well as development of the endometrium and implantation in the uterus of humans. It can also stimulate oocyte maturation in female fish, as well as spermatogenesis and sperm motility in male fish. Thus, P4 has been extensively used in human and animal husbandry as a typ ...
DOI:
10.1002/tox.22826

78. Recovery of reproductive function of female zebrafish from the toxic effects of microcystin-LR exposure

Author:
Atufa Kawan; Tongzhou Zhang; Wanjing Liu; Hina Mukhtar; Chunhua Zhan; Xuezhen Zhang
Source:
Aquatic toxicology 2019 v.214 pp. 105240
ISSN:
0166-445X
Subject:
Danio rerio; adults; eggs; endocrine-disrupting chemicals; estradiol; females; fish; genes; gonads; hatching; histology; microcystin-LR; oocytes; protein content; rearing; testosterone; toxicity; transcription (genetics); vitellogenin
Abstract:
... Fish has a strong resistance to microcystins (MCs), cyclic heptapeptide cyanotoxins, known as endocrine disrupting chemicals (EDCs) which are released during cyanobacterial blooms and many laboratory and field studies have found the hepatic recovery of fish from the MCs exposure. The aim of the present study was to investigate the recovery mechanisms of reproductive function of adult zebrafish (Da ...
DOI:
10.1016/j.aquatox.2019.105240

79. Replacing Part of Glucose with Galactose in the Postweaning Diet Protects Female But Not Male Mice from High-Fat Diet–Induced Adiposity in Later Life

Author:
Lianne M S Bouwman; José M S Fernández-Calleja; Inge van der Stelt; Annemarie Oosting; Jaap Keijer; Evert M van Schothorst
Source:
Journal of nutrition 2019 v.149 no.7 pp. 1140-1148
ISSN:
1541-6100
Subject:
adipocytes; adiposity; blood serum; body weight; breast feeding; data analysis; environmental factors; females; food intake; galactose; glucose; gonads; high fat diet; homeostasis; insulin; insulin receptor substrate proteins; insulin receptors; insulin resistance; lactose; leptin; males; mice; models; pancreas; white adipose tissue
Abstract:
... Duration of breastfeeding is positively associated with decreased adiposity and increased metabolic health in later life, which might be related to galactose. The aim of this study was to investigate if partial replacement of glucose with galactose in the postweaning diet had a metabolic programming effect. Male and female mice (C57BL/6JRccHsd) received an isocaloric diet (16 energy% fat; 64 energ ...
DOI:
10.1093/jn/nxz028
PubMed:
31076770
PubMed Central:
PMC6602901

80. Reproductive Biology of Malabar Pufferfish Carinotetraodon travancoricus (Tetraodontidae)

Author:
K. M. Anupama; H. S. Hari Sankar; M. Rithin Raj; M. Harikrishnan
Source:
Journal of ichthyology 2019 v.59 no.4 pp. 545-554
ISSN:
0032-9452
Subject:
Carinotetraodon; aquarium fish; exports; fecundity; females; gonadosomatic index; gonads; males; maturity stage; monsoon season; oocytes; rivers; sex ratio; spawning; India
Abstract:
... Carinotetraodon travancoricus, is endemic to rivers of Western Ghats of India and supports a lucrative export trade of live aquarium fishes from India. Aspects of its reproduction are studied from fishes collected from the Pampa River, South India. Among 966 fishes analyzed females predominated in March and males in May. However, the overall sex ratio was close to 1 : 1. Ripe gonads could be encou ...
DOI:
10.1134/S0032945219040027

81. Reproductive biology and histological studies of ovarian development of Schizothorax plagiostomus in river Lidder from Kashmir Himalaya

Author:
Muddasir Jan; Imtiaz Ahmed
Source:
Journal of applied ichthyology 2019 v.35 no.2 pp. 512-519
ISSN:
0175-8659
Subject:
Schizothorax; breeding; breeds; chromatin; eggs; females; fish; gonadosomatic index; gonads; histology; ova; ovarian development; rivers; spawning; Himalayan region; India
Abstract:
... The present study investigated the reproductive biology and histological study of gonads of Schizothorax plagiostomus female and its relationship with gonadosomatic index. The study period was from July, 2013 to June, 2014. Fish samples within the range of 25.5 cm to 40.33 cm in total length and weight ranging from 250 g to 580 g were used during the study. The mean GSI value of female fish fluctu ...
DOI:
10.1111/jai.13858

82. Reproductive biology of Aphanius isfahanensis in the Zayandehrud River, central Iran

Author:
Zaniar Ghafouri; Yazdan Keivany; Nasrollah M. Soofiani
Source:
Environmental biology of fishes 2019 v.102 no.1 pp. 19-25
ISSN:
0378-1909
Subject:
Aphanius; body weight; breeding season; eggs; fecundity; females; fish; gonadosomatic index; gonads; males; oocytes; rivers; sex ratio; spawning; Iran
Abstract:
... Reproductive characteristics of Aphanius isfahanensis, an Iranian endemic Cyprinodontid fish in the Zayandehrud River were examined. Samples were taken monthly, from June 2016 to May 2017. Some 485 specimens (245 females, 240 males) were caught by a hand net. Age of males and females ranged from 0⁺ to 2⁺ years. The largest female and male in total length and weight was 5.36 cm, 2.39 g and 4.49 cm, ...
DOI:
10.1007/s10641-018-0833-0

83. Reproductive biology of the mutton hamlet on the coast of Pernambuco, northeastern Brazil

Author:
Maria Ester Ribeiro Simoni; Edson Bortoletto Garciov Filho; Paulo Guilherme Vasconcelos de Oliveira; Mariana Gomes do Rêgo; Fábio Hissa Vieira Hazin; Paulo Travassos
Source:
Neotropical Biology and Conservation 2019 v.14 no.2 pp. 157-168
ISSN:
2236-3777
Subject:
Alphestes; coasts; developmental stages; fecundity; females; fish; fisheries; gonadosomatic index; gonads; males; oocytes; protogyny; sex ratio; spawning; Brazil
Abstract:
... This paper focuses on the reproductive biology of the Mutton Hamlet, Alphestesafer, a fish belonging to the family Epinephelidae, and aims to provide information on the main reproductive parameters of the species on the north coast of the state of Pernambuco, northeastern Brazil. From a total of 783 individuals, collected between March 2007 and June 2010, and from February to November 2014, the go ...
DOI:
10.3897/neotropical.14.e37601

84. Sex Differences in the Epigenome: A Cause or Consequence of Sexual Differentiation of the Brain?

Author:
Bruno Gegenhuber; Jessica Tollkuhn
Source:
Genes 2019 v.10 no.6 pp. -
ISSN:
2073-4425
Subject:
animals; brain; disease susceptibility; epigenetics; females; gender differences; gene expression; genes; gonads; hormone receptors; males; nervous system diseases; regulatory sequences; reproduction; sexual development; steroid hormones; transcription (genetics)
Abstract:
... Females and males display differences in neural activity patterns, behavioral responses, and incidence of psychiatric and neurological diseases. Sex differences in the brain appear throughout the animal kingdom and are largely a consequence of the physiological requirements necessary for the distinct roles of the two sexes in reproduction. As with the rest of the body, gonadal steroid hormones act ...
DOI:
10.3390/genes10060432
PubMed:
31181654
PubMed Central:
PMC6627918

85. Sex determination in pearl oyster: A mini review

Author:
Linda Adzigbli; Ziman Wang; Zhuoxin Lai; Junhui Li; Yuewen Deng
Source:
Aquaculture reports 2019 v.15 pp. 100214
ISSN:
2352-5134
Subject:
breeding programs; females; gametogenesis; genes; gonads; males; nacre; ovarian development; oyster culture; oysters; pearls; pollution; sex determination; sex reversal; temperature; zinc finger motif
Abstract:
... Pearl aquaculture is an intensive pearl production method which has gained much interest over the years with pearl oysters been the main organism involved in the production of sea pearls. This has attracted growth and reproduction research being conducted on the pearl oyster, with research targeted at producing viable stocks through breeding programs utilizing controlled reproduction. The commerci ...
DOI:
10.1016/j.aqrep.2019.100214

86. Sex differences in breathing

Author:
Luciane H. Gargaglioni; Danuzia A. Marques; Luis Gustavo A. Patrone
Source:
Comparative biochemistry and physiology 2019 pp. -
ISSN:
1095-6433
Subject:
adulthood; brain stem; breathing; carbon dioxide; females; gender differences; gonads; hypercapnia; hypoxia; males; menstrual cycle; muscles; oxygen; sex hormones; sexual dimorphism; vertebrates
Abstract:
... Breathing is a vital behavior that ensures both the adequate supply of oxygen and the elimination of CO2, and it is influenced by many factors. Despite that most of the studies in respiratory physiology rely heavily on male subjects, there is much evidence to suggest that sex is an important factor in the respiratory control system, including the susceptibility for some diseases. These different r ...
DOI:
10.1016/j.cbpa.2019.110543

87. Sex differences in pain and opioid mediated antinociception: Modulatory role of gonadal hormones

Author:
Suzanne A. Nasser; Elham A. Afify
Source:
Life sciences 2019 v.237 pp. 116926
ISSN:
0024-3205
Subject:
analgesia; analgesics; brain; comorbidity; distress; etiology; females; gender differences; gonads; humans; males; men; narcotics; pain; purinergic receptors; sex hormones; sexual dimorphism; signal transduction; women
Abstract:
... Sex-related differences in pain and opioids has been the focus of many researches. It is demonstrated that women experience greater clinical pain, lower pain threshold and tolerance, more sensitivity and distress to experimentally induced pain compared to men. Sex differences in response to opioid treatment revealed inconsistent results. However, the etiology of these disparities is not fully eluc ...
DOI:
10.1016/j.lfs.2019.116926

88. Sex differences in the intensity of cross-sensitization between methylphenidate and amphetamine in adolescent rats

Author:
Natasha Kharas; Pamela B. Yang; Tiffany Robles; Ashley Sanchez; Nachum Dafny
Source:
Physiology & behavior 2019 v.202 pp. 77-86
ISSN:
0031-9384
Subject:
adolescence; adolescents; amphetamine; dose response; females; gender differences; gonads; males; rats
Abstract:
... Chronic use of psychostimulants such as methylphenidate (MPD) and amphetamine (Amph) leads to abuse and dependence. Cross-sensitization occurs when exposure to a drug causes a significant intensified response to a different drug as compared to the effect of the drug in subjects with no previous exposure. Cross-sensitization is used as an experimental correlate for a drug's potential to elicit depe ...
DOI:
10.1016/j.physbeh.2018.12.021

89. Sex-related gene expression profiles in various tissues of juvenile Russian sturgeon (Acipenser gueldenstaedtii)

Author:
Magdalena Fajkowska; Dominika Kinga Głowacka; Dobrochna Adamek-Urbańska; Teresa Ostaszewska; Katarzyna Alicja Krajnik; Małgorzata Rzepkowska
Source:
Aquaculture 2019 v.500 pp. 532-539
ISSN:
0044-8486
Subject:
Acipenser gueldenstaedtii; animal tissues; brain; females; feminization; gene expression; genes; gonads; juveniles; liver; males; muscles; sturgeon
Abstract:
... The expression profiles of key genes associated with sex differentiation in vertebrates, namely, amh, ar, cyp19, dmrt1, erα, erβ, foxl2, sox9, star, and vtg, were analyzed in the gonads, liver, muscle, and brain of Russian sturgeon (Acipenser gueldenstaedtii). The aims of this study were to determine in which tissue the signal for sex differentiation primarily occurs, and which factors are most im ...
DOI:
10.1016/j.aquaculture.2018.10.066

90. Sex-specific probability of PIT tag retention in a cyprinid fish

Author:
Marek Šmejkal; Petr Blabolil; Daniel Bartoň; Jindřich Duras; Lukáš Vejřík; Zuzana Sajdlová; Luboš Kočvara; Jan Kubečka
Source:
Fisheries research 2019 v.219 pp. 105325
ISSN:
0165-7836
Subject:
Leuciscus aspius; eggs; females; fish; gonads; life tables; males; models; monitoring; mortality; ovulation; probability; spawning; transponders
Abstract:
... The estimation of age- and sex-specific mortalities is essential for constructing fish life tables and subsequent population modelling. However, the ecological data behind these parameter estimates acquired in nature may be systematically biased by the methodology of the study. To demonstrate mark retention bias by the widely used passive integrated transponder tags (PIT tags), we analysed long-te ...
DOI:
10.1016/j.fishres.2019.105325

91. Size at sex change and reproductive cycle of the limpets Patella vulgata and Patella ulyssiponensis (Mollusca: Patellogastropoda) from intertidal rocky shores of the Algarve coast (southern Portugal)

Author:
Paulo Vasconcelos; Uthesh Umapathy; Paula Moura; Fábio Pereira; André N. Carvalho; Miguel B. Gaspar
Source:
Invertebrate reproduction & development 2019 v.63 no.4 pp. 294-308
ISSN:
2157-0272
Subject:
Patella ulyssiponensis; Patella vulgata; coasts; females; gonads; harvesting; histology; limpets; littoral zone; males; protandry; sex ratio; sex reversal; spawning; spring; summer; Atlantic Ocean; Portugal
Abstract:
... This study describes the reproductive cycle of the common limpet (Patella vulgata) and rough limpet (Patella ulyssiponensis) from the Algarve coast (southern Portugal). Individuals of both species were sampled monthly during two consecutive years, and subjected to gonad histology and calculation of the mean gonadal index (GI). Both species had balanced sex ratios (P. vulgata = 1M: 0.98F; P. ulyssi ...
DOI:
10.1080/07924259.2019.1650128

92. Some Indicators of Metabolism in the Muscles, Liver, and Gonads of Pike-Perch Sander lucioperca and Sichel Pelecus cultratus from the Gorky Reservoir

Author:
A. A. Payuta; E. A. Flerova
Source:
Journal of ichthyology 2019 v.59 no.2 pp. 255-262
ISSN:
0032-9452
Subject:
Pelecus cultratus; Sander lucioperca; females; fish; fish nutrition; gonads; lipid content; lipids; liver; males; muscles; protein metabolism; proteins
Abstract:
... The content of total moisture, dry matter, lipids, proteins, ash, and nitrogen-free extractive substances in the muscles, liver, and gonads have been analyzed for pike-perch Sander lucioperca and sichel Pelecus cultratus of Gorky Reservoir. In the muscles of the females of these fish species, the products of the lipid and protein metabolism accumulate more intensively than in males. In both pike-p ...
DOI:
10.1134/S0032945219020152

93. Structural Changes, Volatile Compounds and Antioxidant Activities of Maillard Reaction Products Derived from Scallop (Patinopecten yessoensis) Female Gonad Hydrolysates

Author:
Jia-Run Han; Yi-Nan Du; Yue Tang; Jun Zhao; Wen-Hui Shang; Jia-Nan Yan; Hai-Tao Wu; Bei-Wei Zhu
Source:
Journal of aquatic food product technology 2019 v.28 no.4 pp. 352-364
ISSN:
1547-0636
Subject:
Fourier transform infrared spectroscopy; Maillard reaction products; Mizuhopecten yessoensis; amino acids; antioxidant activity; butylated hydroxytoluene; byproducts; carboxylic acids; chromatography; females; flavor; flavor compounds; fluorescence; gonads; headspace analysis; human cell lines; hydrogen peroxide; hydrolysates; mass spectrometry; pH; ribose; scallops; schiff bases; subtilisin; volatile compounds
Abstract:
... In order to improve the utilization of scallop byproducts, scallop female gonad hydrolysates (SFGHs) were prepared using alcalase and ribose at a mass ratio of 1:2 and pH 7.0 (95°C, up to 12 h) to develop heterogeneous Maillard-type antioxidant and flavor compounds. The formation of Schiff’s base as well as modification of the amide bands in Maillard reaction products (MRPs) were investigated usin ...
DOI:
10.1080/10498850.2019.1592270

94. Structural changes in the ovotestis of the bidirectional hermaphrodite, the blue-banded goby (Lythrypnus dalli), during transition from ova production to sperm production

Author:
Jessica M. Maxfield; Kathleen S. Cole
Source:
Environmental biology of fishes 2019 v.102 no.11 pp. 1393-1404
ISSN:
0378-1909
Subject:
Eviota; Lythrypnus dalli; eggs; females; fish; gonads; hermaphroditism; life history; males; oocytes; resorption; sex reversal; spermatogenesis; spermatozoa
Abstract:
... Hermaphroditism is widespread in fishes and has been extensively studied in many groups. The process whereby the gonad changes morphology in sequential hermaphrodites (i.e., female to male sex change or the reverse) is well documented. However, gonadal changes in bidirectional hermaphroditic fishes, in which gamete production can shift repeatedly, has received little attention. Here we examine the ...
DOI:
10.1007/s10641-019-00914-2

95. Synthetic progestin etonogestrel negatively affects mating behavior and reproduction in Endler's guppies (Poecilia wingei)

Author:
Christoph Steinbach; Petr Císař; Pavel Šauer; Jana Klicnarová; Heike Schmidt - Posthaus; Oksana Golovko; Hana Kocour Kroupová
Source:
Science of the total environment 2019 v.663 pp. 206-215
ISSN:
0048-9697
Subject:
Poecilia wingei; active ingredients; aquatic environment; color; females; fins; fish; gonads; histology; males; mating frequency; oocytes; oral contraceptives; progestational hormones; reproductive behavior; reproductive success; women
Abstract:
... High rates of progestins consumption in the form of active ingredients in women's oral contraceptives and other hormonal preparations may lead to their increased concentrations in aquatic environments and subsequent harmful effect on fish reproduction. The objective of the present study was to assess the effect of etonogestrel, a third-generation synthetic progestin, on the reproductive behavior, ...
DOI:
10.1016/j.scitotenv.2019.01.276

96. Temperature-control-induced masculinization in tiger puffer Takifugu rubripes

Author:
He Zhou; Zixin Zhuang; Rui Zhang; Qizheng Xu; Yuting Liang; Zhiqiang Jiang; Xia Li; Tianyu Ma; Yajuan Li
Source:
Journal of oceanology and limnology 2019 v.37 no.3 pp. 1125-1135
ISSN:
2096-5508
Subject:
Takifugu rubripes; farmed fish; females; gonads; histology; males; masculinization; processing time; rearing; sex hormones; sex ratio; single nucleotide polymorphism; temperature; ultraviolet radiation
Abstract:
... This study used tiger puffer Takifugu rubripes to explore new, simple methods for low-temperature-induced masculinization in a cultured fish without the use of ultraviolet irradiation or sex hormones. An orthogonal test L₉(3⁴) design was used to consider three factors at three levels: treatment starting times (days post-hatch, dph: factor A) of 20, 50 and 80 dph; treatment temperatures (factor B) ...
DOI:
10.1007/s00343-019-7382-z

97. Tetrodotoxin and saxitoxin in two native species of puffer fish, Sphoeroides marmoratus and Lagocephalus lagocephalus, from NE Atlantic Ocean (Madeira Island, Portugal)

Author:
Estefanía Pereira Pinto; Susana Margarida Rodrigues; Neide Gouveia; Viriato Timóteo; Pedro Reis Costa
Source:
Marine environmental research 2019 v.151 pp. 104780
ISSN:
0141-1136
Subject:
European Union; Lagocephalus lagocephalus; Sphoeroides; digestive tract; females; fish; gonads; indigenous species; liquid chromatography; liver; males; mass spectrometry; neurotoxins; tetrodotoxin; tissues; Atlantic Ocean; Portugal
Abstract:
... The presence in EU waters of invasive tetrodotoxin (TTX) -harbouring puffer fishes has been receiving increasingly attention due to potential new threats posed by this potent neurotoxin. The present study investigates the occurrence of tetrodotoxin, saxitoxin (STX), and their analogues in two native puffer fish species from the NE Atlantic. High TTX content was detected by LC-MS/MS in several tiss ...
DOI:
10.1016/j.marenvres.2019.104780

98. Tetrodotoxin levels of three pufferfish species (Lagocephalus sp.) caught in the North-Eastern Mediterranean sea

Author:
Ali Rıza Kosker; Fatih Özogul; Deniz Ayas; Mustafa Durmus; Yılmaz Ucar; Joe M. Regenstein; Yesim Özogul
Source:
Chemosphere 2019 v.219 pp. 95-99
ISSN:
0045-6535
Subject:
Lagocephalus sceleratus; autumn; females; gonads; intestines; liver; muscle tissues; spring; tetrodotoxin; toxicity; Mediterranean Sea
Abstract:
... Tetrodotoxin (TTX) levels in Lagocephalus sceleratus (Silverstripe blaasop), Lagocephalus spadiceus (Half-smooth golden pufferfish) and Lagocephalus suezensis (Suez puffer) caught in Mersin Bay in the Northeastern Mediterranean Sea were analysed using Q-TOF LC/MS. Pufferfish were caught using trawl fishing, longlining and fishing line from December 2015 to October 2016. The TTX changes in the gona ...
DOI:
10.1016/j.chemosphere.2018.12.010

99. The First Finding of a Spiny Lumpfish Eumicrotremus gyrinops (Cyclopteridae, Cottoidei) from the Pacific Coast of Paramushir Island

Author:
O. S. Voskoboinikova
Source:
Journal of ichthyology 2019 v.59 no.4 pp. 619-622
ISSN:
0032-9452
Subject:
Cylopterus lumpus; Eumicrotremus; Gyrinops; coasts; females; gonads
Abstract:
... In the collection of the Zoological Institute, Russian Academy of Sciences (ZIN), a female of the spiny lumpfish SL 25.1 mm from the Pacific waters of the southeastern tip of Paramushir Island was found that morphologically corresponds to the original description of E. gyrinops. The individual has gonads of the III–IV stage of maturity. The data of its morphological analysis and comparison with da ...
DOI:
10.1134/S0032945219040180

100. The effects of salinity on reproductive development and egg and larvae survival in the spotted scat Scatophagus argus under controlled conditions

Author:
Maoliang Su; Zhengyu Duan; Hongwei Shi; Junbin Zhang
Source:
Aquaculture research 2019 v.50 no.7 pp. 1782-1794
ISSN:
1355-557X
Subject:
Scatophagus argus; acclimation; aquaculture; early development; eggs; embryogenesis; environmental factors; estradiol; females; fish; gonadotropin-releasing hormone; gonads; juveniles; larvae; larval development; males; reproduction; salinity; steroids; survival rate
Abstract:
... In the present study, we report the first successful instance of controlled reproduction in Scatophagus argus, which has recently emerged as a new aquaculture resource. The controlled reproduction process for S. argus was optimized with regard to salinity acclimation. Gonadal maturation was affected by salinity in both sexes. Levels of plasma 17β‐estradiol (E₂) and 11‐ketotestosterone (11‐kT) were ...
DOI:
10.1111/are.14056