摘要
以抗条纹叶枯病的水稻品种爱知106分别与感病品种金陵香糯、武育粳3号及武粳15杂交获得的F2群体为材料,采用重病区田间自然发病的方法,研究爱知106对水稻条纹叶枯病抗性的遗传。结果表明,爱知106对条纹叶枯病的抗性由一对核基因控制,抗病对感病为显性遗传,不同F1显性程度的差异可能与感病亲本的遗传背景有关。
Aichi 106 is an elite rice variety introduced from Japan with Stvb-i gene resistant to rice stripe. In this study ,Aichi 106 was crossed with Chinese rice sensitive varieties Jinlingxiangnuo,Wuyujing 3 and Wujing 15. The field resistance of rice stripe of F1 and F2 progeny of the crosses was investigated. F1 s were highly resistant with some differences in degrees among them. The resistant and sensitive plants of F2 populations accorded with the proportion of 3： 1. It could be elucidated that the resistance in Aichi 106 was controlled by a single nuclear gene and was dominant inheritance compared to susceptibility. Dominant degrees in F1 s might relate to the genetic backgrounds of their susceptible parents.
出处
《江苏农业学报》
CSCD
北大核心
2007年第1期11-14,共4页
Jiangsu Journal of Agricultural Sciences
基金
农业部农业结构调整重大技术研究专项(05-01-05B)
江苏省高技术研究项目(BG2004304
BG2005301)
关键词
水稻
条纹叶枯病
抗性
遗传分析
rice
rice stripe virus
resistance
genetic analysis
