Mapping QTLs for Mineral Element Contents in Brown and Milled Rice Using an Oryza sativa x O. rufipogon Backcross Inbred Line Population

文献类型： 外文期刊

第一作者： Hu, B. -L.

作者： Hu, B. -L.;Huang, D. -R.;Fan, Y. -Y.;Zhuang, J. -Y.;Hu, B. -L.;Huang, D. -R.;Fan, Y. -Y.;Zhuang, J. -Y.;Hu, B. -L.;Xiao, Y. -Q.;Chen, D. -Z.;Hu, B. -L.;Xiao, Y. -Q.;Chen, D. -Z.

作者机构：

关键词： brown rice;milled rice;mineral element content;quantitative trait locus

期刊名称：CEREAL RESEARCH COMMUNICATIONS （ 影响因子：0.85； 五年影响因子：1.067 ）

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收录情况： SCI

摘要： Biofortifying food crops with essential minerals would help to alleviate mineral deficiencies in humans. Detection of quantitative trait loci (QTLs) for mineral nutrient contents in rice was conducted using backcross inbred lines derived from an interspecific cross of Oryza sativa x O. rufipogon. The population was grown in Hangzhou and Lingshui, with the contents of Mg, Zn, Fe, Mn, Cu and Se in brown rice measured in both trials and that in milled rice tested in Hangzhou only. A total of 24 QTLs for mineral element contents were identified, including two for both the brown and milled rice, 17 for brown rice only, and five for milled rice only. All the seven QTLs detected for the mineral contents in milled rice and 13 of the 19 QTLs for the contents in brown rice had the enhancing alleles derived from O. rufipogon. Fifteen QTLs were clustered in seven chromosomal regions, indicating that common genetic- physiological mechanisms were involved for different mineral nutrients and the beneficial alleles could be utilized to improve grain nutritional quality by marker-assisted selection.

分类号： S5

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