基于主基因+多基因混合模型的水稻半矮秆基因的遗传分析  

Genetic Analysis of Semi-dwarf Plant Using Mixed Major Gene Plus Polygenes Model in Rice

作　　者：孟丽君[1] 王术[1] 王伯伦[1] 黄元财[1] 贾宝艳[1] 

机构地区：[1]沈阳农业大学农学院,沈阳110161

出　　处：《沈阳农业大学学报》2009年第6期649-652,共4页Journal of Shenyang Agricultural University

基　　金：教育部留学人员回国启动基金项目(010144);辽宁省博士启动基金项目(2001102060);辽宁省百千万人才工程基金项目(2008921057)

摘　　要：利用半矮生水稻品种沈稻4号(P1)和中高秆品系沈农637(P2)及其杂交后代F1、F2群体,运用主基因+多基因混合遗传模型对株高的遗传进行了联合分离分析。结果表明:株高性状受两对加性-显性-上位性主基因和加性-显性-上位性多基因共同控制。两对主基因的加性效应近似相等,分别为-4.742和-4.741,主基因遗传力为47.13%,多基因遗传力为41.33%。The genetic segregation analysis of plant height was made with the parents of Shendao 4,a semi-dwarf rice variety （P1）,Shennong 637,a medium heighf line（P2）and their F1 and F2 population using the mixed major gene plus poly-gene inheritance model.The results showed that plant height was controlled by two major genes with additive-dominant-epistatic effects and polygenes with additive-dominant-epistatic effects.The additive effects of the two major genes were approximately, equal with-4.742 and-4.741,respectively.The heritability of major genes was 47.13%and the heritability of polygenes was 41.33%.

关 键 词：水稻 半矮秆基因 株高 主基因+多基因混合遗传模型 

分 类 号：S511.22[农业科学—作物学]