广西水稻白叶枯病有效抗病基因和抗性亲本的筛选  

Screening of Effective Resistance Genes and Resistant Rice Parents against Rice Bacterial Leaf Blight(Xanthomonas oryzae pv.Oryzae) in Guangxi Province

作　　者：何翎[1,2] 高利军[2,3] 邓国富[2,3] 岑贞陆[3] 颜群[3] 张晋[3] 王忠文[1] 高汉亮[3] 

机构地区：[1]广西大学农学院,广西南宁530004 [2]广西作物遗传改良生物技术重点开放实验室,广西南宁530007 [3]广西农业科学院,广西南宁530007

出　　处：《安徽农业科学》2011年第27期16604-16605,共2页Journal of Anhui Agricultural Sciences

摘　　要：[目的]明确可在广西利用的白叶枯病抗病基因和抗病亲本。[方法]利用白叶枯病菌(Xanthomonas oryzae pv.Oryzae)广西优势菌型IV菌接种一套水稻抗白叶枯病单基因系、广西主要的杂交稻亲本和一些重要的种质材料,并调查了其抗感情况。[结果]对IV型菌具抗性的品种有IRBB5、IRBB7和CBB23,且分别含有抗病基因xa5、Xa7和Xa23,确认为白叶枯病菌IV型菌的有效抗病基因。[结论]为抗白叶枯病育种提供了依据。[Objective] The paper was to confirm the resistance genes and resistant parents of rice against bacterial leaf blight that could be used in Guangxi Province.[Method] The predominant pathogenic types IV of Xanthomonas oryzae pv.Oryzae in Guangxi were inoculated on a set of monogenic rice lines,the main hybrid rice parents in Guangxi and some important rice germplasm resources,and its resistant and susceptible conditions were investigated.[Result] IRBB5,IRBB7 and CBB23 were the resistant rice parents with resistance against pathogenic types IV,which contained resistance genes xa5,Xa7 and Xa23,respectively,and were identified to be the effective resistance genes against pathogenic types IV of X.oryzae in Guangxi.[Conclusion] The results provided basis for resistance breeding against bacterial leaf blight.

关 键 词：水稻亲本 白叶枯病 抗病基因 

分 类 号：S435.111.47[农业科学—农业昆虫与害虫防治]