关键词: 提莫菲维小麦, 高分子麦谷蛋白亚基, 遗传变异

Abstract: In order to provide basic materials for the quality improvement and detect the HMW-GS components of Triticum timopheevii,43 T.timopheevii were evaluated by means of SDS-PAGE.There were 2,3,1 and 2 different Ax,Ay,Gx and Gy subunits,and 5 HMW-GS combinations [Ax2^*,Gx (A);Ax 2^*+Ay (C),Gx (B)+Gy;Ax1+Ay (B),Gx (B)+Gy;Ax1+Ay (A),Gx (A);Ay (A),Gx (B)],Among which,combination Ax2^*,Gx (A),accounting for 81.40% of the total T.timopheevii accessions,presented most frequently.The expressed Ay and Gy subunits were detected in T.timopheevii accessions,amounting to 27.90% and 6.98%,respectively.These results indicated that the Glu-A1 had higher genetic diversity than the Glu-G1.The utilization strategy of these subunits was discussed.

Key words: T.timopheevii, HMW-GS, genetic variation