水稻广亲和性遗传的主基因多基因混合模型分析  

Analysis on the Major Gene and Multigene Mixed Inheritance of Wide Compatibility Gene in Rice

作　　者：王庆钰[1] 朱立宏[2] 盖钧镒[2] 王建康[3] 

机构地区：[1]吉林大学农学系,长春130062 [2]南京农业大学农学系,南京210095 [3]河南省农科院实验中心,郑州450002

出　　处：《遗传》2004年第6期898-902,共5页Hereditas（Beijing)

基　　金：博士研究生研究经费资助~~

摘　　要：籼、粳亚种间的F1一般表现为半不育 ,这限制了籼、粳杂种优势的利用。广亲和基因的发现及其遗传研究有助于揭示这种半不育现象的遗传本质 ,使克服籼、粳亚种间F1的半不育成为可能。采用主基因 多基因混合遗传模型 ,分析了籼、粳杂交组合 30 37/ 0 2 4 2 8的P1、P2 、F1、B1、B2 和F2 六世代材料。研究结果显示 :广亲和性的遗传除受单个主基因控制外还受多基因的影响。在利用广亲和基因克服亚种间的半不育性时不仅要考虑主基因对育性的作用 。The intersubspecific hybrids between Indica and Japanica varieties are generally semi sterile,which limits the use of Indica-Japanica heterosis. Genetic study of wide compatibility gene (WCG) in rice helps to understand the mechanism of semi sterility and make it possible to overcome this phenomenon. In this study,the P 1、P 2、F 1、B 1、B 2、and F 2 of Indica-Japanica hybrid of 3037/02428 were analyzed by the major gene and minor gene mixed inheritance model. The research showed that Apart from single major gene,the WCG inheritance is also affected by minor genes. Not only major gene’s effect on fertility but also minor gene’s effect should be considered when utilize WCG to overcome semisterile between subspecies.

关 键 词：水稻 广亲和性 杂种优势 主基因-多基因混合遗传 不育性 

分 类 号：S511[农业科学—作物学]