Goat Development: Difference between revisions
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The goat (''Capra aegagrus hircus'') was domesticated from the wild goat of Southwest Asia and Eastern Europe and is closely related to {{sheep}}. Goats, depending on both breed and nutritional status, reach puberty between 3 to 15 months of age and then have an {{estrous cycle}} with estrus (heat) every 21 days for 2 to 48 hours. The gestational period is about 150 days producing single, twins and triplet births. | The {{goat}} (''Capra aegagrus hircus'') was domesticated from the wild goat of Southwest Asia and Eastern Europe and is closely related to {{sheep}}. Goats, depending on both breed and nutritional status, reach puberty between 3 to 15 months of age and then have an {{estrous cycle}} with estrus (heat) every 21 days for 2 to 48 hours. The gestational period is about 150 days producing single, twins and triplet births. | ||
== Some Recent Findings == | == Some Recent Findings == | ||
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| [[File:Mark_Hill.jpg|90px|left]] {{Most_Recent_Refs}} | | [[File:Mark_Hill.jpg|90px|left]] {{Most_Recent_Refs}} | ||
Search term: [http://www.ncbi.nlm.nih.gov/pubmed/?term=Goat+Development ''Goat Development''] | [http://www.ncbi.nlm.nih.gov/pubmed/?term=Goat+Embryology ''Goat Embryology''] | Search term: [http://www.ncbi.nlm.nih.gov/pubmed/?term=Goat+Development ''Goat Development''] | [http://www.ncbi.nlm.nih.gov/pubmed/?term=Goat+Embryology ''Goat Embryology''] | [http://www.ncbi.nlm.nih.gov/pubmed/?term=Capra+aegagrus+hircus+Development ''Capra aegagrus hircus Development''] | ||
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| {{Older papers}} | | {{Older papers}} | ||
* '''FOXL2 is a female sex-determining gene in the {{goat}}'''{{#pmid:24485832|PMID24485832}} "The origin of sex reversal in XX goats homozygous for the polled intersex syndrome (PIS) mutation was unclear because of the complexity of the mutation that affects the transcription of both FOXL2 and several long noncoding RNAs (lncRNAs). Accumulating evidence suggested that FOXL2 could be the sole gene of the PIS locus responsible for XX sex reversal, the lncRNAs being involved in transcriptional regulation of FOXL2. In this study, using zinc-finger nuclease-directed mutagenesis, we generated several fetuses, of which one XX individual bears biallelic mutations of FOXL2. Our analysis demonstrates that FOXL2 loss of function dissociated from loss of lncRNA expression is sufficient to cause an XX female-to-male sex reversal in the goat model and, as in the mouse model, an agenesis of eyelids. Both developmental defects were reproduced in two newborn animals cloned from the XX FOXL2(-/-) fibroblasts. These results therefore identify FOXL2 as a bona fide female sex-determining gene in the goat. They also highlight a stage-dependent role of FOXL2 in the ovary, different between goats and mice, being important for fetal development in the former but for postnatal maintenance in the latter. | |||
* '''Microarray analysis of gene expression in parthenotes and in vitro-derived goat embryos'''{{#pmid:24507961|PMID24507961}} "The present work was carried out to investigate the global gene expression profile to search differentially expressed candidate transcripts between parthenogenetic and in vitro-fertilized (IVF) caprine morula. ...Five UR genes validated (PTEN, PHF3, CTNNB1, SELK, and NPDC1) and all of them were significantly higher in parthenotes, which was in accordance with microarray results, whereas the expression of DR (AURKC and KLF15) genes were downregulated in parthenotes as observed in microarray results but the difference was not significant (P < 0.05). In conclusion, our findings demonstrate differential expression of a large number of genes in parthenotes compared with IVF embryos, which may be the reason for aberrant parthenogenetic embryo development in caprine species." | * '''Microarray analysis of gene expression in parthenotes and in vitro-derived goat embryos'''{{#pmid:24507961|PMID24507961}} "The present work was carried out to investigate the global gene expression profile to search differentially expressed candidate transcripts between parthenogenetic and in vitro-fertilized (IVF) caprine morula. ...Five UR genes validated (PTEN, PHF3, CTNNB1, SELK, and NPDC1) and all of them were significantly higher in parthenotes, which was in accordance with microarray results, whereas the expression of DR (AURKC and KLF15) genes were downregulated in parthenotes as observed in microarray results but the difference was not significant (P < 0.05). In conclusion, our findings demonstrate differential expression of a large number of genes in parthenotes compared with IVF embryos, which may be the reason for aberrant parthenogenetic embryo development in caprine species." | ||
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Revision as of 12:13, 29 July 2019
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Introduction
- Draft Page.
The goat (Capra aegagrus hircus) was domesticated from the wild goat of Southwest Asia and Eastern Europe and is closely related to sheep. Goats, depending on both breed and nutritional status, reach puberty between 3 to 15 months of age and then have an estrous cycle with estrus (heat) every 21 days for 2 to 48 hours. The gestational period is about 150 days producing single, twins and triplet births.
Some Recent Findings
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More recent papers |
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This table allows an automated computer search of the external PubMed database using the listed "Search term" text link.
More? References | Discussion Page | Journal Searches | 2019 References | 2020 References Search term: Goat Development | Goat Embryology | Capra aegagrus hircus Development |
Older papers |
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These papers originally appeared in the Some Recent Findings table, but as that list grew in length have now been shuffled down to this collapsible table.
See also the Discussion Page for other references listed by year and References on this current page.
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Taxon
Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Artiodactyla Family: Bovidae Subfamily: Caprinae Genus: Capra Species: C. aegagrus Subspecies: C. a. hircus
Development Overview
References
- ↑ HosseinNia P, Hajian M, Jafarpour F, Hosseini SM, Tahmoorespur M & Nasr-Esfahani MH. (2019). Dynamics of The Expression of Pluripotency and Lineage Specific Genes in The Pre and Peri-Implantation Goat Embryo. Cell J , 21, 194-203. PMID: 30825293 DOI.
- ↑ Morató R, Hammami S, Paramio MT & Izquierdo D. (2019). Activin-A receptor expression patterns in prepubertal goat oocytes and derived embryos. Reprod. Domest. Anim. , 54, 804-807. PMID: 30786073 DOI.
- ↑ Boulanger L, Pannetier M, Gall L, Allais-Bonnet A, Elzaiat M, Le Bourhis D, Daniel N, Richard C, Cotinot C, Ghyselinck NB & Pailhoux E. (2014). FOXL2 is a female sex-determining gene in the goat. Curr. Biol. , 24, 404-8. PMID: 24485832 DOI.
- ↑ Singh R, Kumar K, Mahapatra PS, Kumar M, Agarwal P, Bhure SK, Malakar D, Bhanja SK & Bag S. (2014). Microarray analysis of gene expression in parthenotes and in vitro-derived goat embryos. Theriogenology , 81, 854-60. PMID: 24507961 DOI.
Reviews
Raudsepp T & Chowdhary BP. (2016). Chromosome Aberrations and Fertility Disorders in Domestic Animals. Annu Rev Anim Biosci , 4, 15-43. PMID: 26884101 DOI.
Articles
HosseinNia P, Hajian M, Tahmoorespur M, Hosseini SM, Ostadhosseini S, Nasiri MR & Nasr-Esfahani MH. (2016). Expression Profile of Developmentally Important Genes in preand peri-Implantation Goat Embryos Produced In Vitro. Int J Fertil Steril , 10, 310-319. PMID: 27695614
Hajian M, Hosseini SM, Ostadhosseini S & Nasr-Esfahani MH. (2016). Targeting the transforming growth factor-β signaling during pre-implantation development in embryos of cattle, sheep and goats. Growth Factors , 34, 141-8. PMID: 27442780 DOI.
Historic
Amoroso EC. Griffiths WFB. and Hamilton WJ. The early development of the goat (Capra hircus). (1942) J Anat. 76(4): 377–406.5. PMC1252677
Search Pubmed
Search Pubmed: Goat Development
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Cite this page: Hill, M.A. (2024, June 8) Embryology Goat Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Goat_Development
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G