Identification of Major QTLs Associated With First Pod Height and Candidate Gene Mining in Soybean
文献类型： 外文期刊
作者： Jiang, Hongwei 1 ; Li, Yingying 1 ; Qin, Hongtao 1 ; Li, Yongliang 1 ; Qi, Huidong 1 ; Li, Candong 1 ; Wang, Nannan 3 ; L 1 ;
作者机构： 1.Northeast Agr Univ, Coll Agr, Harbin, Heilongjiang, Peoples R China
2.Jilin Acad Agr Sci, Soybean Res Inst, Changchun, Jilin, Peoples R China
3.Heilongjiang Acad Agr Sci, Jiamusi Branch Inst, Jiamusi, Peoples R China
关键词： soybean; first pod height; QTL mapping; candidate genes; mechanized harvest
期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.753； 五年影响因子：6.612 ）
ISSN： 1664-462X
年卷期： 2018 年 9 卷
页码：
收录情况： SCI
摘要： First pod height (FPH) is a quantitative trait in soybean [Glycine max (L.) Merr.] that affects mechanized harvesting. A compatible combination of the FPH and the mechanized harvester is required to ensure that the soybean is efficiently harvested. In this study, 147 recombinant inbred lines, which were derived from a cross between 'Dongnong594' and 'Charleston' over 8 years, were used to identify the major quantitative trait loci (QTLs) associated with FPH. Using a composite interval mapping method with WinQTLCart (version 2.5), 11 major QTLs were identified. They were distributed on five soybean chromosomes, and 90 pairs of QTLs showed significant epistatic associates with FPH. Of these, 3 were main QTL x main QTL interactions, and 12 were main QTL x non-main QTL interactions. A KEGG gene annotation of the 11 major QTL intervals revealed 8 candidate genes related to plant growth, appearing in the pathways K14486 (auxin response factor 9), K14498 (serine/threonine-protein kinase), and K13946 (transmembrane amino acid transporter family protein), and 7 candidate genes had high expression levels in the soybean stems. These results will aid in building a foundation for the fine mapping of the QTLs related to FPH and marker-assisted selection for breeding in soybean.
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