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Conditional QTL Mapping of Sedimentation Volume on Seven Quality Traits in Common Wheat 被引量:7
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作者 DENG Zhi-ying ZHAO Liang +6 位作者 LIU Bin ZHANG Kun-pu CHEN Jian-sheng qu hou-lan SUN Cai-ling ZHANG Yong-xiang TIAN Ji-chun 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2013年第12期2125-2133,共9页
To evaluate the possible genetic interrelationships between flour components and the sedimentation volume(SD),a doubled haploid(DH) population comprising 168 lines were used to identify the conditional quantitativ... To evaluate the possible genetic interrelationships between flour components and the sedimentation volume(SD),a doubled haploid(DH) population comprising 168 lines were used to identify the conditional quantitative trait loci(QTLs) for SD in three environments.Ten additive QTLs and 15 pairs of epistatic QTLs were detected for SD through unconditional and conditional QTL mapping.Three major additive QTLs were detected for SD conditioned on the seven quality traits.Two additive QTLs were found to be independent of these traits.Three additive QTLs were suppressed by three of the seven traits because of non-detection in unconditional mapping.Three pairs of epistatic QTLs were completely affected by the seven traits because of detection in unconditional mapping but no-detection in conditional mapping.Twelve pairs of epistatic QTLs were detected in conditional mapping.Our results indicated that conditional mapping could contribute to a better understanding of the interdependence of different and closely correlated traits at the QTL molecular level,especially some minor QTLs were found.The conditional mapping approach provides new insights that will make it possible to avoid the disadvantages of different traits by breeding through molecular design. 展开更多
关键词 wheat(Triticum aestivum L.) sedimentation volume conditional QTL mapping
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