Qu K X, Huang B Z, Yang G R, He Z X, Zhang Y P, Zan L S
College of Animal Science and Technology, Northwest A & F University, Yangling, Shaanxi 712100, China.
Genetika. 2012 Apr;48(4):522-8.
BMY cattle (1/2 Brahman, 1/4 Murray Grey and 1/4 Yunnan Yellow cattle) has been inter se breeding since 1980s. Genetic diversity of BMY cattle was extensively investigated using 16 microsatellite markers. A total of 130 microsatellite alleles and high allele size variance were detected. All loci displayed high genetic diversity with overall mean of N(a) = 8.13, PIC = 0.7224 and H(e) = 0.7666, which were higher than those of many other beef breeds. The allele-sharing neighbour-joining tree clearly displayed the new genotypic combinations and the minglement from both BMY cattle and Brahman. The results provided the genetic information to match the standards of new beef breed in South China.
BMY牛（1/2婆罗门牛、1/4墨累灰牛和1/4云南黄牛）自20世纪80年代以来一直在进行群体内繁育。利用16个微卫星标记对BMY牛的遗传多样性进行了广泛研究。共检测到130个微卫星等位基因和较高的等位基因大小变异。所有位点均表现出高遗传多样性，总体平均等位基因数N(a)=8.13、多态信息含量PIC=0.7224、期望杂合度H(e)=0.7666，高于许多其他肉牛品种。等位基因共享邻接法树清晰地显示了新的基因型组合以及BMY牛和婆罗门牛的混合情况。这些结果为符合中国南方新型肉牛品种标准提供了遗传信息。
