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Mapping developmental QTL for plant height in soybean [Glycine max (L.) Merr.] using a four-way recombinant inbred line population

文献类型： 外文期刊

作者： Xue, Hong 1 ; Tian, Xiaocui 1 ; Zhang, Kaixin 1 ; Li, Wenbin 1 ; Qi, Zhongying 1 ; Fang, Yanlong 1 ; Li, Xiyu 1 ; Wang, Y 1 ;

作者机构： 1.Minist Educ, Key Lab Soybean Biol, Harbin, Peoples R China

2.Minist Agr, Key Lab Soybean Biol & Breeding Genet, Harbin, Peoples R China

3.Northeast Agr Univ, Coll Crop Sci, Harbin, Heilongjiang, Peoples R China

4.Heilongjiang Acad Agr Sci, Keshan Branch, Keshan, Heilongjiang, Peoples R China

期刊名称：PLOS ONE （ 影响因子：3.24； 五年影响因子：3.788 ）

ISSN： 1932-6203

年卷期： 2019 年 14 卷 11 期

页码：

收录情况： SCI

摘要： Plant height (PH) is an important trait in soybean, as taller plants may have higher yields but may also be at risk for lodging. Many genes act jointly to influence PH throughout development. To map the quantitative trait loci (QTL) controlling PH, we used the unconditional variable method (UVM) and conditional variable method (CVM) to analyze PH data for a fourway recombinant inbred line (FW-RIL) population derived from the cross of (Kenfeng14 x Kenfeng15) x (Heinong48 x Kenfeng19). We identified 7, 8, 16, 19, 15, 27, 17, 27, 22, and 24 QTL associated with PH at 10 developmental stages, respectively. These QTL mapped to 95 genomic regions. Among these QTL, 9 were detected using UVM and CVM, and 89 and 66 were only detected by UVM or CVM, respectively. In total, 36 QTL controlling PH were detected at multiple developmental stages and these made unequal contributions to genetic variation throughout development. Among 19 novel regions discovered in our study, 7 could explain over 10% of the phenotypic variation and contained only one single QTL. The unconditional and conditional QTL detected here could be used in molecular design breeding across the whole developmental procedure.

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