首页> 外文期刊>Tropical Animal Health and Production >A new mutation in exon 2 of the bone morphogenetic protein 15 gene is associated with increase in prolificacy of Mehraban and Lori sheep
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A new mutation in exon 2 of the bone morphogenetic protein 15 gene is associated with increase in prolificacy of Mehraban and Lori sheep

机译:骨形态发生蛋白15基因第2外显子的新突变与Mehraban和Lori绵羊的繁殖力增加有关

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摘要

Some mutations in bone morphogenetic protein 15 (BMP15) gene have been known to be associated with prolificacy in various breeds of sheep. Polymorphism of BMP15 gene exon 2 was studied in 100 Mehraban and 100 Lori ewes, using PCR-SSCP and DNA sequencing methods. A new point mutation (G -> aEuro parts per thousand A) was found at position 57 of the amplified 312-b fragment of BMP15 gene exon 2. The frequencies of the AG and GG genotypes were 69.4 and 30.6 % in Mehraban and 44.7 and 55.3 % in Lori ewes, respectively. No individual carrying the AA genotype was found in the studied population. The allelic frequencies for A and G alleles were 34.7 and 65.3 % in Mehraban and 22.4 and 77.6 % in Lori ewes, respectively. Average litter size in the AG genotype (1.56) was significantly (P 0.01) higher than the GG ewes (1.08). The results of the present study indicated the potential of the observed SNP in exon 2 of BMP15 for further exploitation in marker-assisted selection to improve reproduction efficiency of Mehraban and Lori sheep.
机译:已知骨形态发生蛋白15(BMP15)基因中的某些突变与各种绵羊的繁殖能力有关。使用PCR-SSCP和DNA测序方法,在100只Mehraban和100只Lori母羊中研究了BMP15基因外显子2的多态性。在BMP15基因外显子2的扩增的312-b片段的位置57处发现了一个新的点突变(G-> aEuro千分之一A)。在Mehraban中,AG和GG基因型的频率分别为69.4%和30.6%,在44.7和44.7。 Lori母羊分别占55.3%。在研究人群中未发现携带AA基因型的个体。在Mehraban中,A和G等位基因的等位基因频率分别为34.7和65.3%,在洛瑞母羊中分别为22.4和77.6%。 AG基因型的平均产仔数(1.56)明显高于GG母羊(1.08)(P <0.01)。本研究的结果表明,在BMP15外显子2中观察到的SNP可能进一步用于标记辅助选择,以提高Mehraban和Lori绵羊的繁殖效率。

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