密穗小麦(Triticum compactum Host.)醇溶蛋白遗传多样性分析  

Genetic variability of gliadin in Triticum compactum Host.

作　　者：张小英[1] 李伟[1] 魏育明[1] 郑有良[1] 

机构地区：[1]四川农业大学小麦研究所,四川都江堰611830

出　　处：《西南农业学报》2005年第6期680-683,共4页Southwest China Journal of Agricultural Sciences

基　　金：高等学校博士学科点专项科研基金(20040626004)

摘　　要：采用酸性聚丙烯酰胺凝胶电泳(A-PAGE)对来自美国、澳大利亚、巴基斯坦、意大利、土耳其等24个国家的70份密穗小麦材料进行了醇溶蛋白位点的遗传变异分析.结果表明,70份供试材料出现了69种醇溶蛋白带型.共电泳分离出54条谱带,其中每份材料可分离出14～29条带,平均22条.谱带在α、β、γ、ω四个区都存在较大的差异,分别有36、27、37和63种变异类型,表明密穗小麦醇溶蛋白位点具有较丰富的遗传多样性.聚类分析发现,多数材料的遗传聚类关系与其来源地有一定相关性.The gliadin variations of 70 Triticum contpactum accessions from 24 countries were analyzed. Sixty-eight gliadin patterns were observed, and 54 gliadin bands were detected. Among α、β、γ、 and ω zones, there were 36 , 27, 37 and 63 band combinations, respec- tively. These results suggested that T. compactum had higher gliadin variation. Cluster analysis indicated that the genetic relationships among most of T. compactum accessions were assciated with their geographical distributions.

关 键 词：密穗小麦 醇溶蛋白 遗传多样性 聚类分析 

分 类 号：S512.1[农业科学—作物学]