四川三个专用小麦的贮藏蛋白分析

采用SDS -PAGE和APAGE方法对四川 3个不同品质特性的小麦品种在不同收获期、不同发芽程度以及杂种F1的醇溶蛋白和谷蛋白亚基进行分析 ,结果表明 :①高分子谷蛋白亚基的组成虽然在小麦的品质上起着重要作用 ,但仍然受到醇溶蛋白和低分子谷蛋白组成的影响。具 5 + 10亚基的小麦品种不一定具有优良的面包烘烤品质 ;②无论醇溶蛋白还是谷蛋白 ,杂种F1的带型呈共显性遗传 ;③在较为正常的收获期内 ,收获时间或轻度发芽的种子对贮藏蛋白的组成无影响。

Storage Proteins Analysis of Three Wheat Cultivars with Different Quality Character in Sichuan, China

By using SDS-PAGE and APAGE, the author analyzed the glutenins and gliadin patterns of 3 Sichuan wheat cultivars Mianyang 19, Chuanyu 12 and Chuannongmai 1, which have different quality cheracters. The results are as follows: ①The wheat quality is not only determined by HMW-glutenins, but also affected by the LMW-glutenins and gliadin. Those with good subunits 5+10 do not necessarily have good bread-making quality; ②All the gliadin and HMW-glutenin subunits were totally expressed in F_1 generation. It indicated that the gliadin and HMW-glutenin are inherited as codominant; ③The gliadin and HMW-glutenin patterns are not affected by the seed mature grade and light germination.