文献类型： 外文期刊

作者： Xu, J. F. ¹ ; Long, Y. ² ; Wu, J. G. ³ ; Xu, H. M. ¹ ; Zhao, Z. G. ⁴ ; Wen, J. ¹ ; Meng, J. L. ² ; Shi, C. H. ¹ ;

作者机构： 1.Zhejiang Univ, Dept Agron, Hangzhou 310058, Zhejiang, Peoples R China

2.Huazhong Agr Univ, Coll Plant Sci & Technol, Wuhan 430070, Peoples R China

3.Zhejiang A&F Univ, Dept Hort, Linan 311300, Peoples R China

4.Qinghai Acad Agr & Forestry Sci, State Key Lab Breeding Base, Xining 810016, Peoples R China

关键词： Brassica napus L.;Quantitative trait;Quantitative trait locus (QTL);Genetic main effect;QTL x environment interaction effect

期刊名称：EUPHYTICA （ 影响因子：1.895； 五年影响因子：2.181 ）

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收录情况： SCI

摘要： Glucosinolate and erucic acid are important plant compounds in rapeseed believed to have numerous functions in rapeseed-environment interactions. However, little is known about the QTL information related to the two different genetic systems including the embryo nuclear chromosomes and maternal plant nuclear chromosomes for glucosinolate content (GSLC) and erucic acid content (EAC) in rapeseed. Differences in QTL distribution between these two genetic systems, which control the performance of GSLC and EAC across different environmental conditions, were analyzed in the present study. A set of 202 DH populations derived from an elite hybrid cross of 'Tapidor' x 'Ningyou7' and their two backcross populations BC1F1 1 (DHs x Tapidor) and BC1F1 2 (DHs x Ningyou7) generated in two years were used as experimental materials for the study. A total of nine loci for GSLC and three loci for EAC with significant embryo additive main effects, embryo dominant main effects and/or maternal additive main effects, explaining 83.8 and 89.7 %, respectively, of their phenotypic variation, were identified. Although QTL x environment interaction effects were also detected in the present experiment, they played a minimum role in influencing the phenotypic variation. It was noted that qEAC-7-1 for EAC mapped on linkage group A7 was detected as the major QTL and could explain 68.32 % of the phenotypic variation for this trait. These results could be useful for the molecular maker-assisted breeding of GSLC and EAC quality traits based on the influence of two genetic systems.