黄淮冬麦区不同时期大面积推广品种的高分子量麦谷蛋白亚基组成分析

Composition Analysis of HMW-GS in Major Wheat Cultivars Grown in Huanghai Wheat Production Area at Different Periods

为深入了解黄淮冬麦区不同时期大面积推广品种的HMW-G S组成情况,为该区品质育种提供依据,利用SDS-PAGE电泳技术对253份黄淮冬麦区不同时期大面积推广品种HMW-G S组成进行了分析。结果表明,该区主栽品种在G lu-A 1位点具有3种亚基类型(N u ll,1,2*),G lu-B 1位点具有6种亚基类型(6+8,7+8,7+9,13+16,14+15,17+18),G lu-D 1位点具有2种亚基类型(2+12,5+10)。对加工品质具有正效应的优质亚基14+15出现频率为11.3%,5+10亚基频率为15.1%;而具有较高品质得分的亚基组合“0,14+15,5+10”、“1,14+15,5+10”及“1,13+16,5+10”的品种较少。济麦20各位点均聚合了优质亚基,可以作为亲本加以利用。意大利引进品种阿夫(Funo)也是优质亚基“14+15”的来源之一。

In order to provide basic-materials for improving wheat quality, the HMW-GS compositions of 253 wheat varieties grown in Huanghai wheat production at different periods were fractionated by SDSPAGE. The result indicated that Huanghai-grown wheat have rather low Glu-1 quality scores. It was the most important reason that the frequency of subunits ＂5 ＋ 10＂ and ＂14＋15＂ was very low. Wheat varieties with 3 loci of good quality subunits in Glu-1 were too rare. At present, the conditions are better than before. The other origin of subunit ＂14＋ 15＂ was Funo.