Genetic Analysis and Preliminary Mapping of Two Recessive Resistance Genes to Brown Planthopper, Nilaparvata lugens Stl in Rice  

作　　者：HOU Li-yuan1, 2, YU Ping1, XU Qun1, YUAN Xiao-ping1, YU Han-yong1, WANG Yi-ping1, WANG Cai-hong1, WAN Guo1, 2, TANG Sheng-xiang1, PENG Suo-tang2, WEI Xing-hua1 (1State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China 2Shanxi Agricultural University, Taigu 030801, China) 

出　　处：《Rice science》2011年第3期238-242,共5页水稻科学（英文版）

基　　金：funded by the Science and Technology Project for Agriculture in China: Conservation, Utilization and Exploration of Agricultural Wild Plant Sources (2010-2014)

摘　　要：An F2 population derived from the cross of WB01, an introgression line resistant to brown planthopper (BPH) originated from Oryza rufipogon Griff. and a susceptible indica variety 9311, was developed for genetic analysis and gene mapping. The population with 303 F2:3 families was genotyped by 141 simple sequence repeat (SSR) markers and used for gene mapping. Two softwares, Mapmaker/Exp 3.0 and Windows QTL Cartographer V2.0 were applied to detect QTLs. Totally, two QTLs resistant to BPH, named temporarily as bph22(t) and bph23(t), were identified to locate on chromosomes 4 and 8, individually had LOD values of 2.92 and 3.15, and explained 11.3% and 14 .9% of the phenotypic variation, respectively.An F2 population derived from the cross of WB01, an introgression line resistant to brown planthopper (BPH) originated from Oryza rufipogon Griff. and a susceptible indica variety 9311, was developed for genetic analysis and gene mapping. The population with 303 F2:3 families was genotyped by 141 simple sequence repeat (SSR) markers and used for gene mapping. Two softwares, Mapmaker/Exp 3.0 and Windows QTL Cartographer V2.0 were applied to detect QTLs. Totally, two QTLs resistant to BPH, named temporarily as bph22(t) and bph23(t), were identified to locate on chromosomes 4 and 8, individually had LOD values of 2.92 and 3.15, and explained 11.3% and 14 .9% of the phenotypic variation, respectively.

关 键 词：brownplanthopper Oryza rufipogon resistance gene simple sequence repeat marker gene mapping 

分 类 号：S435.112.3[农业科学—农业昆虫与害虫防治]