彭波半细毛羊BMP15和BMPR-IB基因突变与其产羔性的相关分析
Journal of Huaibei Normal University(Natural Science)(2019)
Abstract
BMP15基因(bone morphogenetic protein 15,BMP15)和BMPR-IB基因(bone morphogenetic protein 1beta,BMPR-IB)是影响绵羊排卵率和产羔数的主效基因,对绵羊多羔性状有明显加性效应,可作为检测绵羊繁殖力的主要辅助标记.利用操作简便、灵敏度高等特点的高分辨率熔解曲线分析(High resolution melting curve,HRM),并结合测序技术,对63只彭波半细毛羊(产单羔羊56只、产双羔羊7只)BMP15和BMPR-IB基因的常见突变区域进行突变分析.结果表明:所有样本BMP15基因第718位、第747位、第755位、第871位和第896位,BMPR-IB基因233位和746位均未见DNA突变;仅23个样本的BMPR-IB基因1078位发现T到C的杂合性突变.但经相关性检验分析,发现该杂合性突变与彭波半细毛羊的双羔性无关.
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