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我国不同时期小麦品种高分子量麦谷蛋白亚基组成比较
  • 摘要

    用SDS-PAGE方法测定了我国10个小麦主产省份171份小麦品种和高代品系的高分子量麦谷蛋白亚基(HMW-GS)组成.鉴定出18种HMW-GS,40种HMW-GS组成形式,其中20种亚基其组成形式只在一个品种(系)中出现.Glu-A1位点亚基1和Null出现最多,Glu-B1位点7+8和7+9亚基对占绝对优势,Glu-D1位点2+12亚基对出现频率最高.Null、7+9、2+12、Null,7+8,2+12,1、7+8,2+12,1、7+9、2+12等亚基组成形成出现频率最高,占分析品种的49.71%.与前人研究相比,新育成品种HMW-GS亚基组成发生了明显变化,面包优质亚基(对)1、5+10出现的频率显著升高,亚基多态性增加,组成形式明显改善,这些对于品质改良和品种选育是非常有利的,新育成品种Glu-1品质评分已超过7.尽管个别品种亚基组成好,品质优良,但总体上看,我国小麦品种与其它国家相比品质还存在一定差距,提高5+10、17+18等优质亚基的频率是改善我国小麦面包品质的重要措施.

  • 作者

    宋健民  刘爱峰  姜国华  李豪圣  刘建军  赵振东  SONG Jian-min  LIU Ai-feng  JIANG Guo-hua  LI Hao-sheng  LIU Jian-jun  ZHAO Zhen-dong 

  • 作者单位

    山东省农业科学院作物研究所,济南,250100

  • 刊期

    2006年5期 ISTIC PKU

  • 关键词

    等位变异  高分子量麦谷蛋白亚基  小麦  allelic variation  high-molecular-weight glutenin subunit  wheat (Triticum aestivum) 

参考文献
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