摘要
对水稻细菌性条斑病表现高抗的Ｄｕｌａｒ、ＩＲ２６、ＩＲ３６和ＩＲ１５４５－３３９等４个籼稻品种与感病品种金刚３０杂交并分别与双亲回交，获得Ｆ１、Ｆ２、ＢＣ１和ＢＣ２。在隔离网室用细菌性条斑病菌株ＲＳ－６８接种不同世代群体，根据其抗感反应推断：ＩＲ３６的抗病性是由一对隐性主效基因控制的，Ｄｕｌａｒ、ＩＲ２６和ＩＲ１５４５－３３９三个品种的抗病性分别由一对显性基因控制，Ｄｕｌａｒ和ＩＲ１５４５－３３９的抗病基因呈非等位关系。
The inheritance of resistance to the strain RS-68 of Xanthomonas oryzae pv. oryzicola in four indica rice cultivars (Dular, IR26, IR36 and IR1545-339) were studied. Based on the analysis of population variations in lesion length in hybrids including F1,F2,BC1 and BC2 derived from four combinations by those resistant cultivars with a susceptible cultivar Jingang 30. It was found that the resistance of Dular, IR26 and IR1545-339 to the pathogen wes respectively controlled by one pair of dominant genes, and the resistance of IR36 was controlled by a recessive gene.
出处
《中国水稻科学》
CAS
CSCD
北大核心
1996年第4期193-196,共4页
Chinese Journal of Rice Science
基金
江苏省科委应用基础研究课题
