Polymorphism of three ovine BMP۱۵, INHBA and INHA candidate genes for litter size in four Iranian Indigenous sheep using PCR-sequencing
Publish Year: 1401
نوع سند: مقاله ژورنالی
زبان: English
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JR_KLST-10-2_001
تاریخ نمایه سازی: 16 بهمن 1401
Abstract:
The inhibin α (INHA), inhibin βA (INHBA) and bone morphogenetic protein ۱۵ (BMP-۱۵) were investigated as candidate genes for reproductive traits in four Iranian sheep breeds (Bahmaei, Lak Ghashghaei, Lori-Bakhtiari and Karakul). Based on the ovine sequences of BMP-۱۵, INHA and INHBA genes, three pairs of primers were designed to identify single nucleotide polymorphisms (SNPs) in exon ۲ of BMP-۱۵, INHA and INHBA in multiparous ewes by DNA sequencing. Two SNPs were detected in exon ۲ of the ovine BMP۱۵ gene at positions ۳۶۷ and ۴۳۰, which lead to amino acid substitutions at position ۲۳۱ and ۲۵۲ in the BMP۱۵ protein sequence, respectively. Substitution of Leucine to Proline at position ۲۵۲ is predicted to affect the protein function. A synonymous mutation was found in the amplified fragment of exon ۲ at position ۷۵۲ in ovine INHBA gene. In addition, the c۷۵۲C>T mutation was only found in heterozygous condition in only one Lori-Bakhtiari ewe, while other breeds were in wild type genotype for c۷۵۲C>T mutation. The INHA gene was shown to be highly polymorphic. A total of ۷ SNPs including ۶ nucleotide substitutions and one insertion were found in the amplified fragment of the INHA locus. The insertion mutation was found in two animals of Bahmaei and Karakul breeds. Interestingly, homozygous condition for the mutant alleles in all identified SNPs in BMP۱۵, INHA and INHBA loci was absent in these breeds. Generally, these breeds showed different genetic structures with regard to the identified SNPs in BMP۱۵, INHBA and INHA genes. However, further research with larger sample size and phenotype data on reproductive performance is required to investigate the definitive effect of the identified mutations in this study.
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Authors
Mustafa Muhaghegh
Department of Animal Science, Faculty of Agricultural Science, University of Yasouj, Yasouj, Iran
Sahar Safari
Department of Animal Science, Faculty of Agricultural Science, University of Yasouj, Yasouj, Iran
Parisa Aslanlo
Department of Animal Science, Faculty of Agricultural Science, University of Yasouj, Yasouj, Iran
Hamid Soleimani
Department of Animal Science, Faculty of Agricultural Science, University of Yasouj, Yasouj, Iran
Javad Habibizad
Department of Animal Science, Faculty of Agricultural Science, University of Yasouj, Yasouj, Iran
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