2006•DOAJ (DOAJ: Directory of Open Access Journals)Requires access

Analysis of QTLs with genetic main effect,additive×additive epistatic effect and G×E interaction effect of rice transparency.

Shen Sheng-quan

Abstract

Recombinant inbred lines population derived from Zhenshan 97B/Miyang 46 (ZS97B/MY46) and its genetic linkage map were used to map the QTLs controlling rice transparency in different environments, Hainan and Hangzhou. A total of five QTLs with genetic main effects were detected on chromosomes 2, 6 (two QTLs), 8 and 10, which contributed to 19.15% of the total phenotypic variations. Among them, the additive effects of qTR2-2 came from the female parent while the other four (qTR6-1, qTR6-2, qTR8-2, qTR10) came from the male parent. The QTL qTR6-1 was also detected to have significant G×E interaction effects. In addition, two pairs of QTLs with additive × additive epistasis were detected, but they had no G×E interaction effect.

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