大麦开颖性状的遗传分析Ⅲ．大麦开颖基因的等位性及非等位基因间的互作  

Genetic Analysis of Glume-opening Character in Barley(H. vulgare L.) Ⅲ.The Allelism of Genes and the Interaction of Non-allelic Genes for Glume-opening Character in Barley

作　　者：吕超[1] 黄祖六[1] 祝丽[2] 汤在祥[1] 许如根[1] 

机构地区：[1]扬州大学江苏省作物遗传生理重点实验室／扬州大学大麦研究所,江苏扬州225009 [2]扬州新华中学,江苏扬州225009

出　　处：《麦类作物学报》2009年第3期369-373,共5页Journal of Triticeae Crops

基　　金：国家农业科技成果转化基金项目(2008GB2C100104);国家科技支撑计划项目(2006BAD02B04);农业部行业科技专项(ny-hyzx07(010);现代农业产业体系建设专项-大麦;江苏省六大人才高峰计划项目

摘　　要：为了探讨大麦开颖基因数、基因之间的等位性以及非等位基因间的互作,以闭颖亲本91单2与4个开颖亲本(沪1154、1430R、99-7122、扬0187)的杂种F2群体、回交BC1、BC2群体及4个开颖品种(系)互交杂种F2群体为材料,于2004年大麦开花期测量各群体内植株的开颖角度,统计分析各群体内开、闭颖植株的分离情况。结果表明:(1)沪1154、1430R、扬0187的开颖角度分别由1对、2对和3对基因控制,扬0187基因间的互作为重叠作用;99-7122遗传比较复杂,可能有2对或3对基因控制;(2)扬0187与沪1154有一对开颖等位基因,且此基因的效应较大;1430R和99-7122与其他2个开颖亲本均存在各自的非等位基因;(3)开颖性状均是由主基因控制的,同时存在多基因的修饰,闭颖表现为显性。The number of genes, the allelism of genes and the interaction of non-allelic genes for glume-opening character were investigated by the F2 and backcross populations from the crosses between 1 glumeclosing variety （91-dan-2） and 4 glume-opening varieties （lines） （Hu 1154, 1430R, 99-7122, Yang 0187）, and F2 populations from the crosses between 4 glume-opening varieties （lines）. At the flowering stage of 2004, the angles of glume-openings for the F2 and backcross populations were measured. The distributions of different glume-opening character in above populations were estimated. The main results were summarized as follows： （1）The glume-opening character for Hu 1154,1430R and Yang 0187 was controlled by one, two and three genes, respectively, and that for 99-7122 was controled by two or three genes. The interaction of non-allelie genes for Yang 0187 was duplicate effect. （2）There was a better allelic glume-opening gene in Hu 1154 and Yang 0187,but glume-opening gene in 1430R and 99-7122 was non-allelic to that in other varieties. （3） The glume-opening character was controlled by major gene, and decorated by polygene, glume-closing was dominant to glume-opening.

关 键 词：大麦 开颖 遗传分析 等位性 基因互作 

分 类 号：S512.3[农业科学—作物学] S330