Quantitative Trait Loci Mapping for Leaf Length and Leaf Width in Rice cv.IR64 Derived Lines

查看全文 作　　者：Muhammad [1,2]Farooq;Analiza [1]G.Tagle;Rizza [1]E.Santos;Leodegario [1]A.Ebron;Daisuke [1]Fujita;Nobuya [1]Kobayashi

机构地区：[1]International Rice Research Institute(IRRI);[2]Department of Agronomy,University of Agriculture Faisalabad

出　　处：《Journal of Integrative Plant Biology》索引2010年第52卷第6期,共7页

摘　　要：The present study was conducted to identify quantitative trait loci(QTLs) for leaf size traits in IR64 introgression lines(INLs).For this purpose,selected F2 populations derived from crosses between recurrent parent IR64 and its derived INLs,unique for leaf length and leaf width,were used to confirm QTLs.A total of eight QTLs,mapped on three chromosomes,were identified for the four leaf size traits in six F2 populations.A QTL for leaf length,qLLnpt-1,in HKL69 was identified around simple sequence repeat(SSR) marker RM3709 on chromosome 1.Two QTLs for flag leaf length,qFLLnpt-2 and qFLLnpt-4,in HFG39 were indentified on chromosomes 2 and 4,respectively.For flag leaf width,a QTL,qFLWnpt-4,in HFG39 was identified around RM17483 on chromosome 4.While another QTL for flag leaf width,qFLWnpt-1,in HFG27 was identified around RM3252 on chromosome 1.A QTL for leaf width,qLWnpt-2,in HKL75 was identified around RM7451 on chromosome 2.For leaf width,two QTLs,qLWnpt-4a,qLWnpt-4b,in HKL48 and HKL99 were identified around RM7208 and RM6909,respectively on chromosome 4.Results from this study suggest the possibilities to use marker-assisted selection and pyramiding these QTLs to improve rice water productivity. 关键词：数量性状位点水稻品种衍生系叶宽叶长点定位 1号染色体标记辅助选择

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Quantitative Trait Loci Mapping for Leaf Length and Leaf Width in Rice cv.IR64 Derived Lines

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