The polymorphism of GDF9 gene in Small Tail Han sheep, Hu sheep,Dorset sheep and Suffolk sheep was analyzed by PCR-SSCP.

• 采用PCR-SSCP技术分析了GDF9基因在小尾寒羊、湖羊、多赛特羊和萨福克羊4个绵羊品种的多态性。