A special PCR primer was used to investigate polymorphism of y type high molecular weight glutenin subunit (HMW GS) genes in common wheat, spelt wheat and Triticum compactum.

• 采用PCR方法对普通小麦、斯卑尔脱小麦及密穗小麦在Glu A1、Glu B1和Glu D1位点上 y型高分子量谷蛋白亚基基因的多态性进行了分析。