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2005•Journal of Pharmaceutical and Biomedical SciencesRequires access

Analysis of QTLs with Additive , Epistasis and G×E Interaction Effects of the Tillering Angle Trait in Rice

Shen Sheng

Open publisher page 7 citations

Abstract

The recombinant inbred line(RIL) populations derived from Xieqingzao B / Miyang 46 (Oryza sativa sp indica)and its genetic linkage map were used to map the QTLs for controlling the tillering angle trait in two environments, Hainan and Hangzhou. The results indicated that a total of two QTLs with significant additive effects were identified. The qTA8-2 was detected with LOD of 21.7 and could explain 23.2% of the total phenotypic variations; The qTA9-2 was detected with LOD of 22.0 and could explain 19.5% of the total phenotypic variations. The additive effects of the former QTL came from the female parent, but the latter one came from the male parent. No G×E interaction effect was detected for the additive effect of QTLs. Three pairs of additive × additive QTL interaction effects were also detected and explained only 7.69% of the total phenotypic variation, suggesting their minor importance.

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What this paper is about

The recombinant inbred line(RIL) populations derived from Xieqingzao B / Miyang 46 (Oryza sativa sp indica)and its genetic linkage map were used to map the QTLs for controlling the tillering angle trait in two environments, Hainan and Hangzhou. The results indicated that a total of two QTLs with significant additive effects were identified. The qTA8-2 was detected with LOD of 21.7 and could explain 23.2% of the total phenotypic variations; The qTA9-2 was detected with LOD of 22.0 and could explain 19.5% of the total phenotypic variations. The additive effects of the former QTL came from the female parent, but the latter one came from the male parent. No G×E interaction effect was detected for the additive effect of QTLs. Three pairs of additive × additive QTL interaction effects were also detected and explained only 7.69% of the total phenotypic variation, suggesting their minor importance.

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Available abstract

The recombinant inbred line(RIL) populations derived from Xieqingzao B / Miyang 46 (Oryza sativa sp indica)and its genetic linkage map were used to map the QTLs for controlling the tillering angle trait in two environments, Hainan and Hangzhou. The results indicated that a total of two QTLs with significant additive effects were identified. The qTA8-2 was detected with LOD of 21.7 and could explain 23.2% of the total phenotypic variations; The qTA9-2 was detected with LOD of 22.0 and could explain 19.5% of the total phenotypic variations. The additive effects of the former QTL came from the female parent, but the latter one came from the male parent. No G×E interaction effect was detected for the additive effect of QTLs. Three pairs of additive × additive QTL interaction effects were also detected and explained only 7.69% of the total phenotypic variation, suggesting their minor importance.

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

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Analysis of QTLs with Additive , Epistasis and G×E Interaction Effects of the Tillering Angle Trait in Rice — Research Paper | ScholarLens