3 There were 3 alleles in UMN2404 locus, but we found that these 3 alleles all had no special frequency among these 4 populations, they also had no special frequency between Bos Taurus and Bos Indicus male origins cattles.

• 3 UMN2404 位点有三种等位基因,这三种等位基因在四个群体分布频率没有特异性,在瘤牛和普通牛个体中也没有特异性。