川育小麦高分子量谷蛋白亚基组成分析

HIGH MOLECULAR WEIGHT GLUTENIN SUBUNITS IN CHUANYU WHEAT

对15个川育系列品种及其16个亲本进行了沉降值测定,并采用SDS-PAGE方法分析了供试品种的高分子量谷蛋白亚基的组成及分布,分析了不同亚基与SDS沉降值的关系.结果表明,近期育成的优质小麦品种中含有优质HMW亚基,如5+10,而一些早期育成的品种由于缺乏优质亚基,其品质也稍差一些,因此在今后的品质育种工作中应加强对优质亚基的引进、研究和利用.加强HMW-GS在品质育种中的应用与实践.

The sedimentation values of 15 Chuanyu wheat varieties and their 16 parents were tested for understanding the quality genetic foundation of wheat in Sichuan and for providing theoretical basis for breeding wheat with good quality in Sichuan. The compositions and distributions of HMW-GS in the 31 varieties were investigated using SDS-PAGE. The correlations of HWM-GS and SDS sedimentations were also analyzed. The results indicate that the early Chuanyu wheat varieties lack some subunits with good quality, while the later ones have more subunits with good quality, such as 5+10, so they should be introduced, studied and used in quality genetic breeding program. Fig 2, Tab 8, Ref 12