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You searched for: Subject term females Remove constraint Subject term: females Subject term gonads Remove constraint Subject term: gonads
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1. 17α-ethynilestradiol and tributyltin mixtures modulates the expression of NER and p53 DNA repair pathways in male zebrafish gonads and disrupt offspring embryonic development

Author:
Joana Soares; Teresa Neuparth; Angeliki Lyssimachou; Daniela Lima; Ana André; Maria A. Reis-Henriques; Luís Filipe C. Castro; António Paulo Carvalho; Nuno M. Monteiro; Miguel M. Santos
Source:
Ecological indicators 2018 v.95 pp. 1008-1018
ISSN:
1470-160X
Subject:
DNA repair; Danio rerio; ecotoxicology; eggs; embryogenesis; endocrine-disrupting chemicals; females; gene expression; genes; gonads; males; progeny; reproduction; risk assessment; screening; transcription (genetics); tributyltin; wildlife
Abstract:
... Although chemicals are usually present in the environment in complex mixtures, ecotoxicological risk assessments often rely on data from single exposures to contaminants. The present study aimed at examining the effects of two ubiquitous endocrine disrupting chemicals (EDCs), 17α-ethynilestradiol (EE2) and tributyltin (TBT), single and combined, in zebrafish (Danio rerio) reproduction and embryoni ...
DOI:
10.1016/j.ecolind.2017.04.054

2. 200 Optimization of Individual Stages of Chicken Transgenesis to Increase Efficiency

Author:
E. K. Tomgorova; E. N. Antonova; N. A. Volkova; P. Y. Volchkov; N. A. Zinovieva
Source:
Reproduction, fertility, and development 2018 v.30 no.1 pp. 240-241
ISSN:
1031-3613
Subject:
aorta; busulfan; chickens; chicks; culture dishes; embryo (animal); embryogenesis; females; flow cytometry; fluorescence; fluorescence microscopy; germ cells; gonads; males; phage vectors; quantitative polymerase chain reaction; recombinant DNA; stem cells; transgenesis; transgenic animals; trypsin
Abstract:
... Primordial germ cells (PGC) are the precursors of male and female progenitor cells. The cells are considered a valuable genetic material for the production of transgenic poultry. This technology includes isolation of the PGC from chick donor embryos, transformation of the cells, and injection into the dorsal aorta of recipient embryos. After injection, the PGC are involved in the process of embryo ...
DOI:
10.1071/RDv30n1Ab199

3. 3-(4-Methylbenzylidene) camphor induced reproduction toxicity and antiandrogenicity in Japanese medaka (Oryzias latipes)

Author:
Mengmeng Liang; Saihong Yan; Rui Chen; Xiangsheng Hong; Jinmiao Zha
Source:
Chemosphere 2020 v.249 pp. 126224
ISSN:
0045-6535
Subject:
Oryzias latipes; adults; brain; camphor; chronic exposure; developmental toxicity; estradiol; fecundity; females; genes; gonads; hatching; histology; liver; males; messenger RNA; mortality; spermatogenesis; tap water; vitellogenin
Abstract:
... To assess the toxic effects of 3-(4-Methylbenzylidene) camphor (4-MBC) at environmentally relevant concentrations on the reproduction and development of Japanese medaka (Oryzias latipes), adult paired medaka (F0) were exposed to 5, 50, and 500 μg/L 4-MBC for 28 d in the current study. The fecundity and fertility were significantly decreased at 500 μg/L 4-MBC (p < 0.05). Histological observations s ...
DOI:
10.1016/j.chemosphere.2020.126224

4. 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

5. 50,XY gonadal dysgenesis (Swyer's syndrome) in a female river buffalo (Bubalus bubalis)

Author:
Iannuzzi, L.; Di Meo, G.P.; Perucatti, A.; Di Palo, R.; Zicarelli, L.
Source:
Veterinary record 2001 v.148 no.20 pp. 634-635
ISSN:
0042-4900
Subject:
buffaloes; gonads; chromosome aberrations; females; case studies
DOI:
10.1136/vr.148.20.634
PubMed:
11394803

6. 57 Primordial germ cell distribution in the horse fetal gonad

Author:
D. Scarlet; U. Reichart; G. Podico; R. Ellerbrock; I. Canisso; I. Walter; C. Aurich
Source:
Reproduction, fertility, and development 2020 v.32 no.2 pp. 154
ISSN:
1031-3613
Subject:
antibodies; cell differentiation; cell proliferation; epithelium; females; fetus; fluorescence; fluorescent antibody technique; formaldehyde; gender differences; gene expression regulation; genes; germ cells; gonads; horses; humans; males; meiosis; ovulation; protein synthesis; staining; stem cell factor; stem cells
Abstract:
... Germ cell development and differentiation is a complex process associated with down-regulation of stem cell-associated genes and up-regulation of markers of germ cell differentiation and meiosis. In horses, putative primordial germ cells (PGCs) were identified outside the gonads starting 20 days after ovulation (Curran et al. 1997 Equine Vet. J. Suppl. 25, 72-76). However, no information is availa ...
DOI:
10.1071/RDv32n2Ab57

7. 5S rRNA and Accompanying Proteins in Gonads: Powerful Markers to Identify Sex and Reproductive Endocrine Disruption in Fish

Author:
Diaz de Cerio Oihane; Rojo-Bartolomé Iratxe; Bizarro Cristina; Ortiz-Zarragoitia Maren; Cancio Ibon
Source:
Environmental Science & Technology 2012 v.46 no.14 pp. 7763-7771
ISSN:
1520-5851
Subject:
Anura; Chelon labrosus; females; fish; genetic markers; gonads; importins; males; quantitative polymerase chain reaction; reproduction; ribosomal DNA; ribosomal RNA; transcription (genetics); transcription factors
Abstract:
... In anuran ovaries, 5S rDNA is regulated transcriptionally by transcription factor IIIA (TFIIIA), which upon transcription, binds 5S rRNA, forming 7S RNP. 5S rRNA can be stockpiled also in the form of 42S RNP bound to 42sp43. The aim of the present study was to assess the differential transcriptional regulation of 5S rRNA and associated proteins in thicklip gray mullet (Chelon labrosus) gonads. Up ...
DOI:
10.1021/es301132b

8. A Histological Study of Oogenesis in the Freshwater Mussel Anodonta cygnea (Linnaeus, 1758) in Mira Lagoon, Portugal

Author:
Lima Paula; Monteiro Sandra M.; Sousa Mário; MacHado Jorge
Source:
Malacologia 2012 v.55 no.2 pp. 251-261
ISSN:
0076-2997
Subject:
Anodonta; developmental stages; epithelium; females; freshwater; gonads; hermaphroditism; males; mussels; oocytes; oogenesis; oogonia; summer; Portugal
Abstract:
... Oogenesis of the freshwater mussel Anodonte cygnea was investigated through histological examination over a 12-month period. All specimens were hermaphrodites, having gonads made up of numerous separate female and male acini. Female acini included oogonia with oocytes at different stages of development. Immature oocytes were attached to the acinar wall by a stalk, while mature oocytes were free wi ...
DOI:
10.4002/040.055.0206

9. A New Method for Isolating Viable Gonadal Germ Cells from 7-day-old Chick Embryos

Author:
Nakajima, Yuki; Minematsu, Takeo; Naito, Mitsuru; Tajima, Atsushi
ISSN:
1346-7395
Subject:
blood flow; calcium; chickens; chicks; embryo (animal); females; fluorescence; fluorescent dyes; germ cells; gonads; magnesium; phosphates; poults; staining
Abstract:
... A novel and simple method for isolating viable gonadal germ cells (GGCs) was developed in the domestic chicken, Gallus domesticus. Developing gonads were isolated from 7-day-old chick embryos and cultured for up to 24 hours at 37.8 degrees C in phosphate buffered saline without Ca2+ and Mg2+ (PBS[-]). A discharge of GGCs from the gonad was observed within 30 minutes after introducing the embryonic ...
DOI:
10.2141/jpsa.010094

10. A Transcriptomic Analysis of Gonads from the Low-Temperature-Induced Masculinization of Takifugu rubripes

Author:
He Zhou; Yuqing Sun; Xin Li; Ziyu Zhou; Kexin Ma; Wenxuan Guo; Yuting Liang; Xingyi Xie; Jingxian Zhang; Qian Wang; Yang Liu
Source:
Animals 2021 v.11 no.12 pp. -
ISSN:
2076-2615
Subject:
Takifugu rubripes; farmed fish; females; fibroblast growth factor receptor 3; gene expression regulation; gonads; males; masculinization; nucleotide sequences; phenotype; quantitative polymerase chain reaction; sequence analysis; transcriptome; transcriptomics
Abstract:
... The phenotypic sex of fish is usually plastic. Low-temperature treatment induces the masculinization of Takifugu rubripes, resulting in pseudo-males (PM) with the physiological sex of a male (M) and genetic sex of a female (F). For a comparison of gonadal transcriptomes, we collected gonads from three groups of T. rubripes (F, M, and PM) for high-throughput transcriptome sequencing. The results pr ...
DOI:
10.3390/ani11123419

11. A chromosomal investigation of some British Cantharidae (Coleoptera)

Author:
James, L. V.; Angus, R. B.
Source:
Genetica 2007 v.130 no.3 pp. 293-300
ISSN:
0016-6707
Subject:
Cantharidae; X chromosome; autosomes; centromeres; chromosome banding; chromosome number; females; gonads; karyotyping; larvae; males; meiosis; British Isles
Abstract:
... The karyotypes of 20 species of Cantharidae occurring in the British Isles are described and illustrated, 19 of which are hitherto unrecorded. These are Cantharis cryptica Ashe, Cantharis fusca Linnaeus, Cantharis lateralis Linnaeus, Cantharis livida Linnaeus, Cantharis nigra (Degeer), Cantharis nigricans (O. F. Müller), Cantharis pallida Goeze, Cantharis pellucida Fabricius, Cantharis rufa Linnae ...
DOI:
10.1007/s10709-006-9106-5
PubMed:
17004007

12. A classification system for gonad development in triploid Crassostrea virginica

Author:
Joseph L. Matt; Standish K. Allen
Source:
Aquaculture 2021 v.532 pp. 735994
ISSN:
0044-8486
Subject:
Crassostrea gigas; Crassostrea virginica; diploidy; fecundity; females; gametogenesis; genetic improvement; gonads; males; mortality; oocytes; oysters; time series analysis; triploidy
Abstract:
... Triploidy is a common form of genetic improvement that confers benefits associated with reduced fecundity. Triploid oysters produce fewer gametes yet undergo gametogenesis and develop gonads to variable extents. The variable and typically abnormal gonad development in triploid oysters has often been summarized using criteria developed for the more uniform development of diploid oysters, which can ...
DOI:
10.1016/j.aquaculture.2020.735994

13. A combination of genome-wide association study screening and SNaPshot for detecting sex-related SNPs and genes in Cynoglossus semilaevis

Author:
Bo Zhang; Na Zhao; Kangkang Peng; Xiaoxu He; Chun Xiu Chen; Hao Liu; Kefeng Liu; Lei Jia; Baolong Bao
Source:
Comparative biochemistry and physiology 2020 v.35 pp. 100711
ISSN:
1744-117X
Subject:
Cynoglossus semilaevis; females; gene expression regulation; genes; genetic markers; genome-wide association study; genotyping by sequencing; gonads; linkage disequilibrium; loci; males; messenger RNA; polymerase chain reaction; screening; sexual development; single nucleotide polymorphism
Abstract:
... Chinese tongue sole (Cynoglossus semilaevis) males and females exhibit great differences in growth rate and appearance. The species is heterogametic (ZW/ZZ) and has sex-reversed “pseudomales” that are genetically female and physiologically male. In this study, we identified eight sex-specific single nucleotide polymorphism (SNP) markers for the sex identification of C. semilaevis by using a combin ...
DOI:
10.1016/j.cbd.2020.100711

14. A comparative analysis of lipid content and fatty acid composition in muscle, liver and gonads of Seriola fasciata Bloch 1793 based on gender and maturation stage

Author:
Natacha Nogueira; Igor Fernandes; Tomásia Fernandes; Nereida Cordeiro
Source:
Journal of food composition and analysis 2017 v.59 pp. 68-73
ISSN:
0889-1575
Subject:
Seriola; fatty acid composition; females; fish; gonads; lipid content; liver; maturity stage; muscles; nutritive value; oleic acid; palmitic acid; polyunsaturated fatty acids; spawning; tissues
Abstract:
... The fat content and fatty acid profile of commercially important Seriola fasciata (Lesser amberjack) was determined in samples of muscle, liver and gonads of both genders at pre-spawning and spawning stage. Results indicated that edible muscle of pre-spawning fish had high fat content (>8%), lowering to medium fat (4–8%) content during spawning stage. Livers and gonads presented more constant and ...
DOI:
10.1016/j.jfca.2016.11.005

15. A comparative study of the physiological condition of native and invasive crayfish in Croatian rivers

Author:
Andreja Lucić; Sandra Hudina; Matej Faller; Darko Cerjanec
Source:
Biologia 2012 v.67 no.1 pp. 172-179
ISSN:
1336-9563
Subject:
Astacus astacus; Astacus leptodactylus; Pacifastacus leniusculus; crayfish; energy; energy content; females; gonads; hepatopancreas; indigenous species; muscles; reproduction; rivers
Abstract:
... The physiological condition of two invasive crayfish species identified in Croatian rivers (Orconectes limosus and Pacifastacus leniusculus) was compared with that of native crayfish populations (Astacus astacus and A. leptodactylus). Hepatosomatic, gonadosomatic and abdominal muscle indices were examined for all four species and within a specific invadernative pair. The results demonstrate that i ...
DOI:
10.2478/s11756-011-0151-x

16. A critical review of the environmental occurrence and potential effects in aquatic vertebrates of the potent androgen receptor agonist 17β‐trenbolone

Author:
Gerald T. Ankley; Katherine K. Coady; Melanie Gross; Henrik Holbech; Steven L. Levine; Gerd Maack; Mike Williams
Source:
Environmental toxicology and chemistry 2018 v.37 no.8 pp. 2064-2078
ISSN:
0730-7268
Subject:
acetates; adults; agonists; androgen receptors; bioactive properties; early development; environmental exposure; fecundity; feedlots; females; fish; gonads; in vitro studies; isomers; livestock; masculinization; metabolites; risk; sex hormones; sex ratio; signal transduction; steroid metabolism; surface water; trenbolone; uncertainty
Abstract:
... Trenbolone acetate is widely used in some parts of the world for its desirable anabolic effects on livestock. Several metabolites of the acetate, including 17β‐trenbolone, have been detected at low nanograms per liter concentrations in surface waters associated with animal feedlots. The 17β‐trenbolone isomer can affect androgen receptor signaling pathways in various vertebrate species at comparati ...
DOI:
10.1002/etc.4163
PubMed:
29701261
PubMed Central:
PMC6129983

17. A dose-dependent relationship between copper burden in female urchin gonads and developmental impairment of their offspring

Author:
Nicole E. Phillips; Agnes M. Rouchon
Source:
Marine environmental research 2018 v.136 pp. 120-125
ISSN:
0141-1136
Subject:
Evechinus chloroticus; adults; copper; dose response; early development; females; gonads; larvae; larval development; males; maternal exposure; paternal effect; pollution; progeny
Abstract:
... We examined transgenerational effects of exposure to copper on early development of offspring in the urchin Evechinus chloroticus, and whether parental exposure mediated offspring response to a further low level exposure to copper during early development. Month-long exposure to elevated copper (25 μgL−1) in the laboratory increased copper in gonads of both males and females and reduced gonad size ...
DOI:
10.1016/j.marenvres.2018.01.020

18. A field study of hemolymph yolk protein levels in a bivalve (Unio tumidus) and future considerations for bivalve yolk protein as endocrine biomarker

Author:
Jane E. Morthorst
Source:
Comparative biochemistry and physiology 2017 v.192 pp. 16-22
ISSN:
1532-0456
Subject:
Unio; biomarkers; enzyme-linked immunosorbent assay; females; fish; gonads; hemolymph; lakes; males; protein content
Abstract:
... Induction of yolk protein in male fish is a recognized biomarker for estrogenic exposure because the estrogen-dependent induction mechanism is well investigated and there is a clear difference in yolk protein levels of unexposed males and females. Attempts have been made to use induction of bivalve yolk protein as biomarker for estrogenic exposure. However, several biomarker validation criteria ha ...
DOI:
10.1016/j.cbpc.2016.11.003

19. A histological study of gametogenesis in captive red snapper Lutjanus campechanus

Author:
Agnès Bardon‐Albaret; Nancy J Brown‐Peterson; Jason T Lemus; Angelos Apeitos; Eric A Saillant
Source:
Aquaculture research 2015 v.46 no.4 pp. 901-908
ISSN:
1355-557X
Subject:
Lutjanus campechanus; biopsy; captive animals; eggs; females; gonads; histology; males; monitoring; oocytes; spawning; spermatogenesis; spermatozoa; tanks; temperature; vitellogenesis
Abstract:
... Gametogenesis was monitored histologically in wild‐caught red snapper (Lutjanus campechanus, Poey) maintained in captivity under simulated natural photothermal conditions. Gonads were collected every 2–3 weeks (average n = 14) for histology during the pre‐spawning season (February to May, temperature increasing from 16°C to 24°C). Primary vitellogenic oocytes were first observed in one female when ...
DOI:
10.1111/are.12244

20. A host as an ecosystem: Wolbachia coping with environmental constraints

Author:
Mathieu Sicard; Jessica Dittmer; Pierre Grève; Didier Bouchon; Christine Braquart‐Varnier
Source:
Environmental microbiology 2014 v.16 no.12 pp. 3583-3607
ISSN:
1462-2912
Subject:
Wolbachia; bacteria; ecosystems; endosymbionts; females; gonads; habitats; hosts; immune system; invertebrates; mutualism; pandemic; phenotype; progeny; vacuoles
Abstract:
... The Wolbachia are intracellular endosymbionts widely distributed among invertebrates. These primarily vertically transmitted α‐proteobacteria have been intensively studied during the last decades because of their intriguing interactions with hosts, ranging from reproductive manipulations to mutualism. To optimize their vertical transmission from mother to offspring, the Wolbachia have developed fi ...
DOI:
10.1111/1462-2920.12573

21. 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

22. A mixture of the novel brominated flame retardants TBPH and TBB affects fecundity and transcript profiles of the HPGL-axis in Japanese medaka

Author:
David M.V. Saunders; Michelle Podaima; Garry Codling; John. P. Giesy; Steve Wiseman
Source:
Aquatic toxicology 2015 v.158 pp. 14-21
ISSN:
0166-445X
Subject:
Oryzias latipes; United States Environmental Protection Agency; androgen receptors; brain; cholesterol; diet; eggs; fecundity; females; fish; flame retardants; gene expression regulation; genes; gonads; in vitro studies; liver; males; steroidogenesis; testosterone; toxicity; transcription (genetics); transcriptome
Abstract:
... The novel brominated flame retardants (NBFRs), bis(2-ethylhexyl)-2,3,4,5-tetrabromophthalate (TBPH) and 2-ethylhexyl-2,3,4,5 tetrabromobenzoate (TBB) are components of the flame retardant mixture Firemaster 550 and both TBPH and TBB have recently been listed as high production volume chemicals by the US EPA. These NBFRs have been detected in several environmental matrices but very little is known ...
DOI:
10.1016/j.aquatox.2014.10.019

23. A multidisciplinary method to assess the reproductive biology of Mystus bleekeri

Author:
Tamanna Sultana; Sabuj Kanti Mazumder; Jannatul Kubra; Nurnobi Nishad; Sarker Mohammad Ibrahim Khalil; Simon Kumar Das; Md. Arifur Rahman Khan; Md. Tawheed Hasan
Source:
Aquaculture and fisheries 2021 pp. -
ISSN:
2468-550X
Subject:
Mystus; aquaculture; body weight; condition factor; fecundity; females; gonadosomatic index; gonads; histology; humans; males; oocytes; ornamental fish; rivers; sex ratio; Bangladesh
Abstract:
... The study aims to afford a deeper knowledge on reproductive biology of Mystus bleekeri from Surma River, Bangladesh in a multidisciplinary way. Though, the species is in demand as food and ornamental fish in Bangladesh but still now comprehensive details on reproductive biology of this species is scanty. Total 600 fish samples were derived from commercial catches from July 2018 to June 2019. Perio ...
DOI:
10.1016/j.aaf.2021.12.017

24. 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

25. A new view of sexual differentiation of mammalian brain

Author:
Margaret M. McCarthy
Source:
Journal of comparative physiology 2020 v.206 no.3 pp. 369-378
ISSN:
0340-7594
Subject:
brain; chromosome number; females; fetus; gender differences; gene expression; gonads; immune system; males; mammals; masculinization; sex chromosomes; signal transduction; transcriptomics
Abstract:
... Establishment of enduring sex differences in brain and behavior occurs during pre- or perinatal development, depending on species. For over 50 years the focus has been on gonadal steroid production by male fetuses and the impact on developing brain. An increasing awareness of the importance of sex chromosome complement has broadened the focus but identifying specific roles in development has yet t ...
DOI:
10.1007/s00359-019-01376-8
PubMed:
31705197
PubMed Central:
PMC7196030

26. 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

27. A proposed role for the Polycomb group protein dRING in meiotic sister-chromatid cohesion

Author:
Eric M. Balicky; Lynn Young; Terry L. Orr-Weaver; Sharon E. Bickel
Source:
Chromosoma 2004 v.112 no.5 pp. 231-239
ISSN:
0009-5915
Subject:
Drosophila melanogaster; alleles; antibodies; chromatids; chromatin; chromosome segregation; cohesion; females; gonads; kinetochores; males; meiosis; microtubules; missense mutation; models; mutants; protein-protein interactions; spermatocytes; two hybrid system techniques
Abstract:
... ORD protein is required for accurate chromosome segregation during male and female meiosis in Drosophila melanogaster. Null ord mutations result in random segregation of sister chromatids during both meiotic divisions because cohesion is completely abolished prior to kinetochore capture of microtubules during meiosis I. Previous analyses of mutant ord alleles have led us to propose that the C-term ...
DOI:
10.1007/s00412-003-0266-0

28. A protein binding site in the M mitochondrial genome of Mytilus galloprovincialis may be responsible for its paternal transmission

Author:
Eleni Kyriakou; Lara Kravariti; Themistoklis Vasilopoulos; Eleftherios Zouros; George C. Rodakis
Source:
Gene 2015 v.562 pp. 83-94
ISSN:
0378-1119
Subject:
Mytilus galloprovincialis; adenine; binding sites; eggs; females; gel electrophoresis; gonads; inheritance (genetics); males; mitochondria; mitochondrial DNA; mitochondrial genome; mussels; somatic cells; spermatogenesis; spermatozoa
Abstract:
... Sea mussels (genus Mytilus) have two mitochondrial genomes in obligatory co-existence, one that is transmitted through the egg and the other through the sperm. The phenomenon, known as Doubly Uniparental Inheritance (DUI) of mitochondrial DNA (mtDNA), is presently known to occur in more than 40 molluscan bivalve species. Females and the somatic tissues of males contain mainly the maternal (F) geno ...
DOI:
10.1016/j.gene.2015.02.047

29. A report on overripe female and spent male Atlantic salmon (Salmo salar) in August

Author:
Tom Johnny Hansen; Mette Remen; Florian Sambraus; Per Gunnar Fjelldal
Source:
Aquaculture 2015 v.444 pp. 114-116
ISSN:
0044-8486
Subject:
Salmo salar; females; fish culture; food consumption; gonads; males; ovulation; oxygen consumption; rearing; salmon; seawater; solar radiation; spawning; summer; tanks; temperature
Abstract:
... This report is based on a finding of spent males and overripe females of Atlantic salmon on 30 August 2013. The studied fish population had been reared in tanks from seawater transfer in May 2011 to April 2013, and then in a sea-cage under natural light. From May 2011 until August 2012, and then again from February until April 2013, the fish were under natural light and temperature. In between the ...
DOI:
10.1016/j.aquaculture.2015.03.027

30. A spatial analysis of trophic composition: a case study of hairtail (Trichiurus japonicus) in the East China Sea

Author:
Liu, Yong; Cheng, Jiahua; Chen, Yong
Source:
Hydrobiologia 2009 v.632 no.1 pp. 79-90
ISSN:
0018-8158
Subject:
Crustacea; Sciaenidae; Trachurus japonicus; Trichiurus; cannibalism; case studies; cluster analysis; coasts; diet; ecosystems; females; fish; fisheries; fishery resources; gonads; juveniles; maturity stage; predators; spawning; stomach; surveys; East China Sea
Abstract:
... The spatial distribution of fish on feeding grounds is an important factor in determining their prey composition. Of the factors that may influence the spatial distribution on the feeding ground and subsequent diet composition is the fish maturation stage. Using hairtail (Trichiurus japonicus) as an example, we evaluated the impacts of gonad development stage on diet composition. Hairtail supports ...
DOI:
10.1007/s10750-009-9829-2

31. A study of temporal effects of the model anti-androgen flutamide on components of the hypothalamic-pituitary-gonadal axis in adult fathead minnows

Author:
Rebecca Milsk; Jenna E. Cavallin; Elizabeth J. Durhan; Kathleen M. Jensen; Michael D. Kahl; Elizabeth A. Makynen; Dalma Martinović -Weigelt; Nathan Mueller; Anthony Schroeder; Daniel L. Villeneuve; Gerald T. Ankley
Source:
Aquatic toxicology 2016 v.180 pp. 164-172
ISSN:
0166-445X
Subject:
Pimephales promelas; adults; androgen receptors; antagonists; cytochrome P-450; enzymes; estradiol; females; gene expression; gonads; males; minnows; sexual maturity; temporal variation; testosterone
Abstract:
... The aim of this study was to investigate temporal changes in the hypothalamic-pituitary-gonadal (HPG) axis of fathead minnows (Pimephales promelas) treated with the model androgen receptor (AR) antagonist flutamide. Reproductively-mature fish were exposed in a flow-through test to analytically-confirmed concentrations of either 50 or 500μg flutamide/L for 8 d, followed by an 8-d recovery period in ...
DOI:
10.1016/j.aquatox.2016.09.021

32. A time-course analysis of effects of the steroidogenesis inhibitor ketoconazole on components of the hypothalamic-pituitary-gonadal axis of fathead minnows

Author:
Gerald T. Ankley; Jenna E. Cavallin; Elizabeth J. Durhan; Kathleen M. Jensen; Michael D. Kahl; Elizabeth A. Makynen; Linnea M. Thomas; Leah C. Wehmas; Daniel L. Villeneuve
Source:
Aquatic toxicology 2012 v.114-115 no. pp. 88-95
ISSN:
0166-445X
Subject:
Pimephales promelas; cholesterol; females; gene expression regulation; genes; gonads; ketoconazole; males; minnows; steroidogenesis; testosterone
Abstract:
... The objective of this study was to evaluate temporal effects of the model steroidogenesis inhibitor ketoconazole (KTC) on aspects of reproductive endocrine function controlled by the hypothalamic-pituitary-gonadal (HPG) axis in the fathead minnow (Pimephales promelas). Ketoconazole inhibits the activity of two cytochrome P450s (CYPs) key to sex steroid production in vertebrates, CYP11a (cholestero ...
DOI:
10.1016/j.aquatox.2012.02.012
PubMed:
22417765

33. APOBEC2 mRNA and protein is predominantly expressed in skeletal and cardiac muscles of chickens

Author:
Juan Li; Xiao-Ling Zhao; Elizabeth Ruth Gilbert; Di-Yan Li; Yi-Ping Liu; Yan Wang; Qing Zhu; Ya-Gang Wang; Yang Chen; Kai Tian
Source:
Gene 2014 v.539 pp. 263-269
ISSN:
0378-1119
Subject:
apolipoprotein B; cell nucleus; chickens; females; gizzard; gonads; males; mammals; messenger RNA; muscle development; myocardium; protein subunits; protein synthesis; skeletal muscle; subcutaneous fat
Abstract:
... Apolipoprotein B mRNA-editing enzyme catalytic subunit 2 (APOBEC2) plays an important role in regulating and maintaining muscle development in mammals. In this study, we evaluated APOBEC2 mRNA abundance and protein expression and the results indicated that APOBEC2 mRNA was most abundant in skeletal and cardiac muscle, with relatively low expression in the gonads, gizzard and subcutaneous fat tissu ...
DOI:
10.1016/j.gene.2014.01.003

34. Abnormal development of gonads of dwarf females and low survival of their offspring as the cause of rarity of resident populations of atlantic salmon (Salmo salar L.)

Author:
A. A. Makhrov; M. V. Ponomareva; O. V. Khaimina; V. E. Gilepp; O. V. Efimova; T. A. Nechaeva; T. I. Vasilenkova
Source:
Russian journal of developmental biology 2013 v.44 no.6 pp. 326-335
ISSN:
1062-3604
Subject:
Salmo salar; abnormal development; developmental stages; eggs; farmed fish; fecundity; females; gonads; interspecific competition; oocytes; progeny; rearing; reproductive performance; spawning
Abstract:
... Fecundity and mass of egg, as well as survival of offspring, of hatchery-reared small (less than 406 g) females of Atlantic salmon are determined. The absolute fecundity and mass of egg of artificially reared fish are sufficiently less than that of anadromous spawners. Small females are characterized by delayed spawning; histological analysis has demonstrated significant asynchrony in oocyte devel ...
DOI:
10.1134/S1062360413060076

35. Acclimating and maintaining Chinese sturgeon Acipenser sinensis in a large public aquarium environment

Author:
Wei, Q.W.; Zhang, X.Y.; Zhang, X.F.; Liu, J.Y.; Yang, D.M.; Zhu, Y.J.; Chen, X.H.; Wu, X.X.; Li, L.X.; Liu, J.W.
Source:
Journal of applied ichthyology 2011 v.27 no.2 pp. 533-540
ISSN:
0175-8659
Subject:
Acipenser; Anadara; Cyprinus carpio; Epinephelus; Eriocheir sinensis; Hypophthalmichthys molitrix; Litopenaeus vannamei; Misgurnus anguillicaudatus; Monopterus albus; Octopodidae; Paralichthys; Silurus; aquariums; females; food choices; food intake; foods; gonads; live feeds; progeny; sturgeon; survival rate; weight gain; Yangtze River
Abstract:
... Based on the five wild Chinese sturgeons which were captured from the Yichang section of the Yangtze River, and the 323 offsprings of the Chinese sturgeons, were studied as to their survival, development and behaviour under aquarium conditions between 2005 and 2007 in the captive environment of an aquarium. All five wild caught females survived, with weight gains ranging from 0.55% (Specimen W1#: ...
DOI:
10.1111/j.1439-0426.2011.01684.x

36. Accumulation and mobilization of lipids in relation to reproduction of yellowfin tuna (Thunnus albacares) in the Western Indian Ocean

Author:
Iker Zudaire; Hilario Murua; Maitane Grande; Fabrice Pernet; Nathalie Bodin
Source:
Fisheries research 2014 v.160 pp. 50-59
ISSN:
0165-7836
Subject:
Thunnus albacares; aggregation behavior; energy; fecundity; females; gonads; income; lipid content; liver; muscles; oocytes; ovarian development; phospholipids; reproductive performance; spawning; triacylglycerols; vitellogenesis; wax esters; Indian Ocean
Abstract:
... Total lipid content and lipid class composition were analyzed in gonads, liver and white muscle of yellowfin tuna (Thunnus albacares) throughout ovary development to understand its reproductive allocation strategy and to assess the relation between female condition and reproduction. A total of 112 females were collected onboard purse-seiner in the Western Indian Ocean from January to March 2009, f ...
DOI:
10.1016/j.fishres.2013.12.010

37. Accumulation of docosapolyenoic fatty acids in developing oocytes of the winged pearl oyster Pteria sterna

Author:
Martha Hawkyns-Martínez; Pedro E. Saucedo; Laura Carreón-Palau; Eliana Gómez-Robles; Héctor Acosta-Salmón
Source:
Aquaculture 2014 v.432 pp. 74-79
ISSN:
0044-8486
Subject:
Pteria sterna; breeding season; breeding stock; dietary supplements; eggs; females; gender differences; gonads; hatcheries; larvae; males; monounsaturated fatty acids; oocytes; oysters; rearing; ripening; viability; Mexico
Abstract:
... Ensuring supplies of pearl oyster spat for commercial grafting operations in Mexico is an ongoing problem. This has refocused research toward improving hatchery propagation protocols. Since gender plays an important role in the physiology of bivalves, we studied the use of fatty acids in the gonad and digestive gland of male and female winged pearl oyster (Pteria sterna) over its natural breeding ...
DOI:
10.1016/j.aquaculture.2014.04.026

38. Active and passive responses to catnip (Nepeta cataria) are affected by age, sex and early gonadectomy in male and female cats

Author:
Luz Teresa Espín-Iturbe; Bernardo A. López Yañez; Apolo Carrasco García; Rodolfo Canseco-Sedano; Maribel Vázquez-Hernández; Genaro A. Coria-Avila
Source:
Behavioural processes 2017 v.142 pp. 110-115
ISSN:
0376-6357
Subject:
Felidae; Nepeta cataria; adults; brain; cats; females; gonadectomy; gonads; juveniles; males; pet ownership; rolling; vocalization
Abstract:
... Catnip (Nepeta cataria) is a popular plant among cat owners because in about 60% of felids elicits active behaviors such as rolling over, grooming, motor activity and vocalizations. Herein, we assessed the display of active but also passive responses, such as time in sphinx-like position, and consequently hypothesized that 100% of cats respond to catnip. Accordingly, sixty domestic cats of differe ...
DOI:
10.1016/j.beproc.2017.06.008

39. Adult-specific over-expression of the Drosophila genes magu and hebe increases life span and modulates late-age female fecundity

Author:
Li, Yishi; Tower, John
Source:
Molecular genetics and genomics 2009 v.281 no.2 pp. 147-162
ISSN:
1617-4615
Subject:
Drosophila; Hebe; adults; angiogenesis; doxycycline; fecundity; females; gene overexpression; genes; gonads; humans; longevity; maternal effect; mortality; mutants; mutation; progeny; stem cells; transposons
Abstract:
... During Drosophila aging mortality rate increases exponentially and progeny production per animal declines dramatically, correlating with decreased number and division of somatic and germ-line stem cells in the gonads. To search for genes that might promote both longevity and fecundity, a P element transposon (PdL), containing an outwardly directed, doxycycline-inducible promoter was used to genera ...
DOI:
10.1007/s00438-008-0400-z
PubMed:
19011900
PubMed Central:
PMC3845451

40. Advantage for the sex changer who retains the gonad of the nonfunctional sex

Author:
Sachi Yamaguchi; Yoh Iwasa
Source:
Behavioral ecology and sociobiology 2017 v.71 no.2 pp. 39
ISSN:
0340-5443
Subject:
Paragobiodon; Trimma; coral reefs; corals; evolution; females; fish; gonads; males; models; monogamy; polygyny; sex reversal; socioeconomic status; tissues
Abstract:
... Many species of teleost fish live in coral reefs and change sex depending on their social status; some even demonstrate sex change in both directions. Typically, in the absence of a more dominant competitive individual, the fish functions as a male; however, when a more competitively superior individual arrives, the focal fish becomes a female. Among these bidirectional sex changers, there are spe ...
DOI:
10.1007/s00265-017-2269-5

41. Age, growth and reproduction in creole perch (Percichthys trucha) in the Negro River, Argentinean Patagonia

Author:
Lopez Cazorla, A.; Sidorkewicj, N.
Source:
Journal of applied ichthyology 2011 v.27 no.1 pp. 30-38
ISSN:
0175-8659
Subject:
age determination; elderly; females; gonads; juveniles; males; otoliths; perch; reproduction; rivers; spawning; spring; summer; Argentina
Abstract:
... Age, growth and reproductive characteristics of creole perch, Percichthys trucha, were investigated in the Negro River, southern Argentina from samples collected seasonally, December 1994-December 1995. Age was estimated via scale and whole otolith reading methods. Total length (n = 413) ranged from 103 to 432 mm, and weight from 12 to 1042 g. Significant differences between the length-weight rela ...
DOI:
10.1111/j.1439-0426.2010.01574.x

42. Age, growth rate and size at sexual maturity of Labeobarbus aeneus (Teleostei: Cyprinidae) in the middle Vaal River, South Africa

Author:
R Gerber; NJ Smit; GM Wagenaar
Source:
African journal of aquatic science 2012 v.37 no.1 pp. 49-58
ISSN:
1727-9364
Subject:
Cyprinidae; age structure; females; fish; males; otoliths; rivers; sexual maturity; sport fishing; South Africa
Abstract:
... Age structure, growth and size at sexual maturity of smallmouth yellowfish, Labeobarbus aeneus (Burchell), were assessed in 2008–2009. Despite its angling and food importance, little has been published on many aspects of its ecology and biology, specifically its age structure in the Vaal River system. Of 193 L. aeneus collected by gillnetting, 96 were assessed for sexual maturity, and ages were es ...
DOI:
10.2989/16085914.2012.666337

43. 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

44. Age, growth, and gonadal condition of the Giant mottled eel, Anguilla marmorata, in Okinawa-Jima Island, Japan

Author:
Tomohiro Kita; Katsunori Tachihara
Source:
Environmental biology of fishes 2020 v.103 no.8 pp. 927-938
ISSN:
0378-1909
Subject:
Anguilla anguilla; Anguilla marmorata; females; gonadosomatic index; gonads; growth rings; life history; males; otoliths; rivers; water temperature; Japan
Abstract:
... Age, growth, and gonadal condition of the Giant mottled eel, Anguilla marmorata, were estimated from 303 specimens collected at Okinawa-jima Island, Japan. Otolith opaque zones that formed every year correlated with high water temperature and were thought to be annual rings. The growth of this species differed between males and females, and females were longer lived and larger than males. The mean ...
DOI:
10.1007/s10641-020-00994-5

45. 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

46. 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

47. Age, growth, reproductive biology and spawning periodicity of the forktail rabbitfish (Siganus argenteus) from the Mariana Islands

Author:
Brett M. Taylor; John Gourley; Michael S. Trianni
Source:
Marine & freshwater research 2017 v.68 no.6 pp. 1088-1097
ISSN:
1323-1650
Subject:
Siganus; females; fisheries; fisheries management; gonadosomatic index; gonads; life history; males; mortality; otoliths; periodicity; spawning; temporal variation; Northern Mariana Islands
Abstract:
... In the present study, life-history traits of importance to fisheries management were estimated for the forktail rabbitfish (Siganus argenteus) based on fishery-dependent samples collected over a 2-year period in the Commonwealth of the Northern Mariana Islands. Age-based and reproductive information was derived from analysis of sagittal otoliths and gonads. The species is short-lived, with a maxim ...
DOI:
10.1071/MF16169

48. Age-based demography and sexual pattern of the white-streaked grouper, Epinephelus ongus in Okinawa

Author:
Itaru Ohta; Akihiko Ebisawa
Source:
Environmental biology of fishes 2016 v.99 no.10 pp. 741-751
ISSN:
0378-1909
Subject:
Epinephelus; demography; females; gonads; grouper; histology; islands; males; otoliths; protogyny; sex reversal; spawning; Ryukyu Archipelago
Abstract:
... The demography and sexual pattern of the white-streaked grouper, Epinephelus ongus (Serranidae), in the Yaeyama Islands, Okinawa, were examined based on age assessment using otoliths and gonadal histology. The von Bertalanffy growth parameters were estimated as follows: L∞ = 34.35 cm total length (TL); K = 0.187 yr. ⁻¹; and t₀ = − 0.975 yr. The maximum age was 20 yrs. The smallest mature female wa ...
DOI:
10.1007/s10641-016-0517-6

49. Aggressive behaviours track transitions in seasonal phenotypes of female Siberian hamsters

Author:
Nikki M. Rendon; Andrea C. Amez; Melissa R. Proffitt; Elizabeth R. Bauserman; Gregory E. Demas
Source:
Functional ecology 2017 v.31 no.5 pp. 1071-1081
ISSN:
0269-8463
Subject:
Melospiza melodia; Phodopus; aggression; brain; breeding; estradiol; females; gonads; hamsters; phenology; phenotype; photoperiod; social behavior; steroids; summer; winter
Abstract:
... Seasonally breeding animals exhibit profound physiological and behavioural responses to changes in ambient day length (photoperiod), including changes in reproductive function and territorial aggression. Species where aggression persists when gonads are regressed and circulating levels of gonadal hormones are low, such as Siberian hamsters (Phodopus sungorus) and song sparrows (Melospiza melodia), ...
DOI:
10.1111/1365-2435.12816
PubMed:
28757672
PubMed Central:
PMC5526640

50. Agrochemicals disrupt multiple endocrine axes in amphibians

Author:
Vance L Trudeau; Paisley Thomson; Wo Su Zhang; Stéphane Reynaud; Laia Navarro-Martin; Valérie S. Langlois
Source:
Molecular and cellular endocrinology 2020 v.513 pp. 110861
ISSN:
0303-7207
Subject:
Anura; Caudata; Gymnophiona; acaricides; adults; agrochemicals; females; frogs; gonads; human health; juveniles; life history; males; metamorphosis; phonotaxis; reproductive success; sex reversal; thyroid hormones
Abstract:
... Concern over global amphibian declines and possible links to agrochemical use has led to research on the endocrine disrupting actions of agrochemicals, such as fertilizers, fungicides, insecticides, acaricides, herbicides, metals, and mixtures. Amphibians, like other species, have to partition resources for body maintenance, growth, and reproduction. Recent studies suggest that metabolic impairmen ...
DOI:
10.1016/j.mce.2020.110861