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GnRHR基因多态性与崂山奶山羊产羔数的关联分析

DOI: 10.7668/hbnxb.2014.06.015, PP. 78-83

Keywords: GnRHR基因,奶山羊,产羔数

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Abstract:

为阐明GnRHR基因的多态性与崂山奶山羊产羔数的关系,设计7对引物,采用PCR-RFLP和PCR-SSCP技术检测GnRHR基因在不同产羔数崂山奶山羊的单核苷酸多态性,并分析其与产羔数的关系。结果显示:该基因存在2个多态位点,A261G突变对于初产母羊GA型产羔数比AA型多0.06只,比GG型多0.04只,差异不显著(P>0.05);对于经产母羊GA型产羔数比AA型多0.35只,差异显著(P<0.05),比GG型多0.45只,差异不显著(P>0.05)。G55A位点共检测到GG和GA这2种基因型,其中对于初产母羊GG型比GA型产羔数多0.13只,经产母羊GG型比GA型产羔数多0.19只,但差异均不显著(P>0.05)。因此,GnRHR基因A261G突变位点可能是影响崂山奶山羊产羔性能一个潜在的有效分子标记。

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