Quantitative trait loci for photosynthetic pigment concentration in a doubled-haploid population of Pak Choi (Brassica rapa ssp chinensis var. communis Tsen et Lee)
文献类型： 外文期刊
作者： Wang, Q. 1 ; Hou, X. L. 1 ; Geng, J. F. 3 ; Cheng, Y. 1 ; Ban, Q. Y. 1 ; Zou, J. W. 4 ; Barker, G. C. 4 ;
作者机构： 1.Nanjing Agr Univ, State Key Lab Crop Genet & Germplasm Enhancement, Nanjing 210095, Peoples R China
2.Minist Agr, Key Lab So Vegetable Crop Genet Improvement, Nanjing 210095, Peoples R China
3.Henan Acad Agr Sci, Inst Hort, Zhengzhou 450002, Peoples R China
4.Univ Warwick, Warwick HRI, Warwick CV35 9EF, England
期刊名称：JOURNAL OF HORTICULTURAL SCIENCE & BIOTECHNOLOGY （ 影响因子：1.641； 五年影响因子：1.616 ）
ISSN： 1462-0316
年卷期： 2010 年 85 卷 5 期
页码：
收录情况： SCI
摘要： Quantitative trait loci (QTL) mapping and marker development are essential steps in any molecular breeding programme. In this study, QTL for photosynthetic pigment concentration were identified using a doubled-haploid (DH) population of 112 lines derived from an F(1) hybrid of Pak Choi, 'Shuly', obtained from a cross between Brassica rapa lines SW-13 and SU-124 through microspore culture. QTL mapping was carried out using a modification to the map of 'Shulv. Alignment of the linkage groups was carried out with those of reference B. rapa maps, allowing the assignment of these groups as A01-A10. In total, 11 QTL were associated with photosynthetic pigment concentration and identified on linkage groups A05, A08, and A10. The maximum phenotypic variance for a single QTL was 38.0%. Markers closely linked to these QTL could assist in the development of Pak Choi cultivars with increased yield, due to having improved photosynthetic capabilities.
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