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

An F 2 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 F 2:3 families was genotyped by 141...

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Published inRice science Vol. 18; no. 3; pp. 238 - 242
Main Authors HOU, Li-yuan, YU, Ping, XU, Qun, YUAN, Xiao-ping, YU, Han-yong, WANG, Yi-ping, WANG, Cai-hong, WAN, Guo, TANG, Sheng-xiang, PENG, Suo-tang, WEI, Xing-hua
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.09.2011
Subjects
brownplanthopper
gene mapping
Oryza rufipogon
resistance gene
simple sequence repeat marker
brownplanthopper
resistance gene
simple sequence repeat marker
Oryza rufipogon
gene mapping
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Summary:An F 2 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 F 2:3 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.
ISSN:1672-6308
1876-4762
DOI:10.1016/S1672-6308(11)60033-4