中文摘要：

为了解河南省小麦新品系的品质状况,利用SDS-PAGE技术分析了722份小麦新品系HMW-GS的组成及变异情况,结果表明,共检测到12种等位基因变异和20种亚基组合,其中GluA1位点、Glu-B1位点和Glu-D1位点的主要亚基分别为1（60.94%）、7＋9（65.93%）和2＋12（57.34%）;主要的亚基组合为＂1,7＋9,2＋12＂（21.88%）和＂Null,7＋9,2＋12＂（20.22%）。河南省小麦新品系的HMW-GS等位基因变异和亚基组合具有丰富的多样性,但是不同亚基的频率差异悬殊,在小麦品质育种中需要提高优质亚基组合及优质亚基7＋8、14＋15等的频率。

英文摘要：

In order to investigate the quality of new wheat lines from Henan province and to provide refer-ence for wheat quality breeding,HMW-GS compositions of 722 materials were analyzed by SDS-PAGE. 12 HMW-GS alleles and 20 subunit combinations were detected. The subunits 1（60.94%）,7 ＋9（65.93%）,2 ＋12（57. 34% ） were the major subunits on locus Glu-A1,Glu-B1 and Glu-D1 respectively. Subunit combi-nations “1,7 ＋ 9,2 ＋ 12”（21. 88% ） and “Null,7 ＋ 9,2 ＋ 12”（20. 22% ） were the major subunit com-binations. The result showed that HMW-GS allelic variation and subunit combination had rich diversity, but the frequency of different alleles had great disparity. So the frequency of quality subunit combinations and the quality subunits 7 ＋ 8 and 14 ＋ 15 need to be improved in future.