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Presence of SNPs in GDF9 mRNA of Iranian Afshari Sheep

BACKGROUND: Multiple births occur frequently in some Iranian sheep breeds, while infertility scarcely occurs. Mutation detection in major fecundity genes has been explored in most of Iranian sheep flocks over the last decade. However, previously reported single nucleotide polymorphisms (SNPs) for bo...

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Autores principales: Eghbalsaied, Shahin, Ghaedi, Kamran, Shahmoradi, Somayeh, Pirestani, Akbar, Amini, Hamidreza, Saiedi, Talat, Nicol, Linda, McNeilly, Alan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Royan Institute 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4152185/
https://www.ncbi.nlm.nih.gov/pubmed/25210607
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author Eghbalsaied, Shahin
Ghaedi, Kamran
Shahmoradi, Somayeh
Pirestani, Akbar
Amini, Hamidreza
Saiedi, Talat
Nicol, Linda
McNeilly, Alan
author_facet Eghbalsaied, Shahin
Ghaedi, Kamran
Shahmoradi, Somayeh
Pirestani, Akbar
Amini, Hamidreza
Saiedi, Talat
Nicol, Linda
McNeilly, Alan
author_sort Eghbalsaied, Shahin
collection PubMed
description BACKGROUND: Multiple births occur frequently in some Iranian sheep breeds, while infertility scarcely occurs. Mutation detection in major fecundity genes has been explored in most of Iranian sheep flocks over the last decade. However, previously reported single nucleotide polymorphisms (SNPs) for bone morphogenetic protein receptor-(BMPR)-1B and growth differentiation factor ) GDF9( known to affect fertility have not been detected. This study was conducted to assess whether any significant mutations in GDF9 were extracted from slaughtered ewe ovaries of Iranian Afshari sheep breed. MATERIALS AND METHODS: Ovaries defined as poor, fair, and excellent quality based on external visual appearance of follicles were used for histology and RNA extraction processes. High quality RNAs underwent reverse transcriptase-polymerase chain reaction (RT-PCR) from GDF9 mRNA, and the products sequenced. RESULTS: No streak ovaries, which are considered indicators of infertility due to homozygocity for some mutations in GDF9 and BMP15, were found. Sequencing results from GDF9 cDNA showed that G2 (C471T), G3 (G477A), and G4 (G721A) mutations were observed from 1, 4, and 1 out of 12 ewes, respectively. Though all 3 mutations were previously reported, this is the first report on their presence in Iranian breeds. The first and second mutations do not alter the amino acids, while G4 is a non-conservative mutation leading to E241K in the prohormone. CONCLUSION: As the G4 mutation was observed only in ovaries defined superficially as top quality, it could be considered as one of reasons for higher ovulation rate in some sheep. Furthermore since multiple mutations were observed in some cases, it might be possible that combinations of minor mutations in GDF9 and BMP15 interact to affect fecundity in some Iranian sheep breeds.
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spelling pubmed-41521852014-09-10 Presence of SNPs in GDF9 mRNA of Iranian Afshari Sheep Eghbalsaied, Shahin Ghaedi, Kamran Shahmoradi, Somayeh Pirestani, Akbar Amini, Hamidreza Saiedi, Talat Nicol, Linda McNeilly, Alan Int J Fertil Steril Original Article BACKGROUND: Multiple births occur frequently in some Iranian sheep breeds, while infertility scarcely occurs. Mutation detection in major fecundity genes has been explored in most of Iranian sheep flocks over the last decade. However, previously reported single nucleotide polymorphisms (SNPs) for bone morphogenetic protein receptor-(BMPR)-1B and growth differentiation factor ) GDF9( known to affect fertility have not been detected. This study was conducted to assess whether any significant mutations in GDF9 were extracted from slaughtered ewe ovaries of Iranian Afshari sheep breed. MATERIALS AND METHODS: Ovaries defined as poor, fair, and excellent quality based on external visual appearance of follicles were used for histology and RNA extraction processes. High quality RNAs underwent reverse transcriptase-polymerase chain reaction (RT-PCR) from GDF9 mRNA, and the products sequenced. RESULTS: No streak ovaries, which are considered indicators of infertility due to homozygocity for some mutations in GDF9 and BMP15, were found. Sequencing results from GDF9 cDNA showed that G2 (C471T), G3 (G477A), and G4 (G721A) mutations were observed from 1, 4, and 1 out of 12 ewes, respectively. Though all 3 mutations were previously reported, this is the first report on their presence in Iranian breeds. The first and second mutations do not alter the amino acids, while G4 is a non-conservative mutation leading to E241K in the prohormone. CONCLUSION: As the G4 mutation was observed only in ovaries defined superficially as top quality, it could be considered as one of reasons for higher ovulation rate in some sheep. Furthermore since multiple mutations were observed in some cases, it might be possible that combinations of minor mutations in GDF9 and BMP15 interact to affect fecundity in some Iranian sheep breeds. Royan Institute 2012 2012-03-20 /pmc/articles/PMC4152185/ /pubmed/25210607 Text en Any use, distribution, reproduction or abstract of this publication in any medium, with the exception of commercial purposes, is permitted provided the original work is properly cited http://creativecommons.org/licenses/by/2.5/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Eghbalsaied, Shahin
Ghaedi, Kamran
Shahmoradi, Somayeh
Pirestani, Akbar
Amini, Hamidreza
Saiedi, Talat
Nicol, Linda
McNeilly, Alan
Presence of SNPs in GDF9 mRNA of Iranian Afshari Sheep
title Presence of SNPs in GDF9 mRNA of Iranian Afshari Sheep
title_full Presence of SNPs in GDF9 mRNA of Iranian Afshari Sheep
title_fullStr Presence of SNPs in GDF9 mRNA of Iranian Afshari Sheep
title_full_unstemmed Presence of SNPs in GDF9 mRNA of Iranian Afshari Sheep
title_short Presence of SNPs in GDF9 mRNA of Iranian Afshari Sheep
title_sort presence of snps in gdf9 mrna of iranian afshari sheep
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4152185/
https://www.ncbi.nlm.nih.gov/pubmed/25210607
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