数字农科院2.0

QTL Mapping for Grain Yield Conditioned on its Component Traits in Two RIL Populations of Bread Wheat

文献类型： 外文期刊

作者： Ding, A. M.;Cui, F.;Li, J.;Zhao, C. H.;Qi, X. L.;Bao, Y. G.;Li, X. F.;Wang, H. G.;Ding, A. M.;Cui, F.;Li, J.;Wang, L.

作者机构：

关键词： grain yield;yield components;conditional analysis;QTL mapping

期刊名称： CEREAL RESEARCH COMMUNICATIONS

ISSN： 0133-3720

年卷期： 2013 年 41 卷 1 期

页码：

收录情况： SCI

摘要： Grain yield (GY) and yield components (YC) were investigated using two F-8: 9 RILs, comprising 229 and 485 lines, respectively. A conditional analysis was conducted to generate conditional values for GY independent of each YC. Then both unconditional and conditional values were analyzed to map QTLs with additive effect. In both RILs, up to 23 unconditional and conditional QTLs were detected. However, only two QTLs were identified repeatedly among environments. All QTLs, except for 4 detected in unconditional mapping, were also identified as conditional QTLs, whereas a number of QTLs were additionally detected in conditional mapping. The number of QTLs detected that affected GY was different with respect to component-special influences. Our results revealed that the contributions of YC influencing QTL expression related to GY differed.

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