Identification of a Resistance Gene to Rice Blast in a Space-induced Rice Mutant
Utilization of resistance (R) genes has been proven the most effective and economical approach to control rice blast.The space-induced rice mutant H4 expresses broad-spectrum resistance to most of isolates collected from Cuangdong province,China.To understand its resistance to rice blast,genetic and mapping analysis of the blast resistance (R) gene in H4 were conducted.Genetic analysis indicated that blast resistance to a representative isolate was controlled by a single dominant locus designated as Pih4 (t).Highly susceptible F2 individuals were performed with linkage analysis,the Pih4 (t) locus was preliminarily linked to markers RM224 and RM27360 with,(～) 1.04 cM and 1.2 cM in the long arm of chromosome 11,respectively.Our current study provides essential information for the cloning of the Pih4 (t) gene and for marker-assisted selection in rice breeding for blast resistance.
Rice blast Resistance gene Gene mapping
Wuming Xiao Qiyun Yang Zhiqiang Chen Wang Hui
Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences,Guangzhou 510640, Ch Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences,Guangzhou 510640, Ch College of Agriculture, South China Agricultural University,Guangzhou 510642, China College of Agriculture, South China Agricultural University,Guangzhou 51064
国内会议
武汉
英文
98-103
2009-10-27（万方平台首次上网日期，不代表论文的发表时间）