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 a...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.展开更多
基金funded by the Science and Technology Project for Agriculture in China:Conservation,Utilization and Exploration of Agricultural Wild Plant Sources(2010-2014)
文摘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.
