牦牛群体血清运铁蛋白位点遗传分化的探讨

A Study on Genetic Differentiation ofSerum Transferrin Loci in Yak Groups

根据中国、蒙古、前苏联等３国９个牦牛地方品种（类群）血清运铁蛋白位点的基因频率，探讨了各牦牛群体的遗传分化程度，结果表明：血清运铁蛋白各等位基因频率在不同的牦牛群体中，具有明显的种群特异性；中国牦牛品种（类群）间遗传分化程度大，而蒙古牦牛品种（类群）间遗传分化程度较低。这反映了牦牛起源进化上的差异。

Based on the gene frequency of serum transferrin loci in nine different yak breeds of China, Mongolia and former Soviet Union f the genetic differentiation degree of yak groups is discussed. The result shows that the allele frequency of serum transferrin is different among groups with specific characteristics. There is a great degree of genetic differentiation among yak breeds in China ,while the genetic differentiation among yak breeds in Mongolia is low. This indicates that the progess of origins and evolution might be different in some yak groups or subgroups.