For primer 2-4, genotypes KK and KL were detected in German Mutton Merino sheep, three genotypes (KK, KL and LL) were detected in other four sheep breeds.

• 引物2-4,德国肉用美利奴羊只出现KK和KL基因型,而其余4个绵羊品种则出现KK、KL和LL基因型;