阿拉拉特小麦高分子量谷蛋白亚基遗传多样性分析  

Genetic Variations of High Molecular Weight Glutenin Subunits in Triticum araraticum Jakubz.

作　　者：徐黎黎[1] 钟美玉[1] 李伟[1] 魏育明[1] 

机构地区：[1]四川农业大学小麦研究所,四川温江611130

出　　处：《四川农业大学学报》2011年第1期6-9,15,共5页Journal of Sichuan Agricultural University

基　　金：四川省青年基金项目(2010JQ0046)

摘　　要：为了给普通小麦的品质改良提供基础材料,利用SDS-PAGE技术对264份阿拉拉特小麦高分子谷蛋白亚基遗传变异进行了分析。结果表明:有5种Ax、5种Ay、4种Gx和3种Gy亚基类型,并形成20种亚基组合类型,其分布频率最高的是Ax1+Ay(A),Gx(A)和Ax1,Gx(A),分别占18.94%和18.18%。在264份材料中,有158份材料(59.85%)中检测到Ay亚基表达,249份材料(94.32%)中检测Gx亚基表达,而Gy亚基仅在部分材料中(20.08%)表达。由此可见,阿拉拉特小麦Glu-A1位点的遗传多样性高于Glu-G1。In order to provide basic materials for the quality improvement,264 accessions of T.araraticum were analyzed with SDS-PAGE.The results showed that there were 5 Ax,5 Ay,4 Gx and 3 Gy subunits,resulting in 20 HMW-GS combinations,among which,combinations Ax1＋Ay（A）,Gx（A） and Ax1,Gx（A） were the most frequent combinations in T.araraticum,accounting for 18.94% and 18.18%,respectively.Among 264 accessions of T.araraticum,the expressed Ay and Gx subunits were detected in 59.85% and 94.32%,while Gy only observed in 20.08% T.araraticum accessions.These results indicated that the Glu-A1 had higher genetic diversity than the Glu-G1.

关 键 词：阿拉拉特小麦 高分子麦谷蛋白亚基 遗传变异 

分 类 号：S512.1[农业科学—作物学]