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2006•Journal of BiomathematicsRequires access

Analysis of QTLs with Main,Epistasis and G×E Interaction Effects of Stigma Extruding Trait in Rice

Shen Sheng-quan, Jie‐Yun Zhuang, Jingsong Bao, Qingyao Shu, Yingwu Xia

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Abstract

The recombinant inbred line(RIL)populations derived from Xieqingzao B/Miyang 46 and their genetic linkage maps were employed to map the quantitative trait loci(QTL)with main effects,epistasis,and G×E(GE)interaction effects of stigma extruding trait in two envi- ronments,Hainan and Hangzhou.The stigma extruding rate was higher in Hainan(21.83%)than that in Hangzhou(8.35%).Only one QTL with main effect was detected with LOD as high as 28.16,which explained 14.14% of the total phenotypic variations.The positive additive effect of this QTL was 5.10% which came from the female parent.No GE interaction effect was detected. Three additive×additive double QTL epistasis effects were detected with little contributions,and no epistasis by environment effects was detected.

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What this paper is about

The recombinant inbred line(RIL)populations derived from Xieqingzao B/Miyang 46 and their genetic linkage maps were employed to map the quantitative trait loci(QTL)with main effects,epistasis,and G×E(GE)interaction effects of stigma extruding trait in two envi- ronments,Hainan and Hangzhou.The stigma extruding rate was higher in Hainan(21.83%)than that in Hangzhou(8.35%).Only one QTL with main effect was detected with LOD as high as 28.16,which explained 14.14% of the total phenotypic variations.The positive additive effect of this QTL was 5.10% which came from the female parent.No GE interaction effect was detected. Three additive×additive double QTL epistasis effects were detected with little contributions,and no epistasis by environment effects was detected.

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Available abstract

The recombinant inbred line(RIL)populations derived from Xieqingzao B/Miyang 46 and their genetic linkage maps were employed to map the quantitative trait loci(QTL)with main effects,epistasis,and G×E(GE)interaction effects of stigma extruding trait in two envi- ronments,Hainan and Hangzhou.The stigma extruding rate was higher in Hainan(21.83%)than that in Hangzhou(8.35%).Only one QTL with main effect was detected with LOD as high as 28.16,which explained 14.14% of the total phenotypic variations.The positive additive effect of this QTL was 5.10% which came from the female parent.No GE interaction effect was detected. Three additive×additive double QTL epistasis effects were detected with little contributions,and no epistasis by environment effects was detected.

Key concepts: Epistasis, Quantitative trait locus, Trait, Biology, Genetics, Genetic linkage, Interaction, Inbred strain

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Analysis of QTLs with Main,Epistasis and G×E Interaction Effects of Stigma Extruding Trait in Rice — Research Paper | ScholarLens