And, all individuals of Duroc exhibited the AA genotype but the Sutai pigs exhibited all three kinds of genotypes.The BB genotype was detected only in Meishan pigs and their derivate Sutai pigs.

• 其中杜洛克中仅存在AA基因型, 苏太猪中存在全部基因型, 只有在梅山猪和具有梅山猪血统的苏太猪中出现基因型BB。