The polymorphism of exon 2 and partial sequence of exon 1 of gonadotropin releasing hormone receptor(GnRHR) gene in Small Tail Han sheep and Dorset sheep was analyzed by PCR-SSCP.

• 采用PCR-SSCP技术,用两对引物分析了GnRHR基因外显子2和外显子1部分序列在小尾寒羊、多赛特羊2个绵羊品种中的多态性。