摘要
采用“累积分布曲线法”用日本７个单基因鉴别菌系（Ｐ２ｂ、研５３－３３、稻７２、北１、研５４－２０、研５４－０４、稻１６８）接种鉴定了农林２０×东农４１５组合７套Ｆ３系统。结果表明，东农４１５对Ｐ２ｂ、北１、稻１６８三个菌系的抗性是由三对显性基因控制的；对研５３－３３菌系是由两对显性互补基因控制的；对研５４－０４菌系的抗性是由两对显性基因和一对隐性基因控制的；对稻７２和研５４－２０两个菌系的抗性是由两对显性基因控制的。分析结果显示水稻品种东农４１５至少含有三个显性抗瘟性基因，且基因间存在互作。
By means of Cumulative Distribution Curve Method, seven sets of F3 lines derived from the cross combination (Norin 20 × Dengnong 415) were tested with seven Japanese strains of Pyricularia grisea Saccardo.The results indicated that the resistance of Dongnong 415 to P2b, Hoku 1,Ina 168 strains was controlled by three dominant genes,and the resistance to Ina 72 and Ken54-20 strains was controlled by two dominant genes; to Ken 53-33 strain by two complementary dominant genes; to Ken 54-04 strain by two dominant genes and one recessive gene. Accordingly,there were at least three dominant genes for blast resistance in rice variety, Dengnong 415, and there were interactions between these genes.
出处
《中国水稻科学》
CAS
CSCD
北大核心
1996年第2期85-90,共6页
Chinese Journal of Rice Science
关键词
稻瘟病
抗性基因
水稻
品种
东农415
cumulative distribution curve method
fungus strain
resistance gene
Pyricularia grisea
