Quantitative trait loci(QTLs)for quality traits related to protein and starch in wheat

查看全文 作　　者：Haiyan Sun Jianhua Lü Yuding Fan Yan Zhao Fanmei Kong Rijun Li Honggang Wang Sishen [1]Li

机构地区：[1]National Key Laboratory of Crop Biology. College of Agronomy. Shandong Agricultural University, Tafan 271018, China

出　　处：《Progress in Natural Science:Materials International》索引2008年第18卷第7期,共7页

基　　金：supported by National Key Technique Program for Regulation of Agricultural Structure(Grant No.06-02-04B);National Natural Science Foundation of China(Grant No.3057155). 摘　　要：Quality traits in wheat (Triticum aestivum L.) were studied by quantitative trait locus (QTL) analysis in a recombinant inbred line (RIL) population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross (ChSh). Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99–40.52% of phe- notypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster includ- ing protein and starch traits on chromosome 1D. 关键词：小麦产量品质蛋白质淀粉

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Quantitative trait loci(QTLs)for quality traits related to protein and starch in wheat

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