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Construction of Chromosome Segment Substitution Lines and Inheritance of Seed-Pod Characteristics in Wild Soybean

文献类型： 外文期刊

作者： Zheng, Haiyang 1 ; Hou, Lilong 1 ; Xie, Jianguo 2 ; Cao, Fubin 1 ; Wei, Ruru 1 ; Yang, Mingliang 1 ; Qi, Zhaoming 1 ; Zhu, Rongsheng 1 ; Zhang, Zhanguo 1 ; Xin, Dawei 1 ; Li, Candong 3 ; Liu, Chunyan 1 ; Jiang, Hongwei 2 ; Chen, Qingshan 1 ;

作者机构： 1.Northeast Agr Univ, Harbin, Peoples R China

2.Soybean Res Inst, Jilin Acad Agr Sci, Changchun, Peoples R China

3.Heilongjiang Acad Agr Sci, Jiamusi Branch Inst, Jiamusi, Peoples R China

关键词： CSSLs; high-density Bin-Map; QTLs; wild soybean; seed-pod characteristics

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：6.627； 五年影响因子：7.255 ）

ISSN： 1664-462X

年卷期： 2022 年 13 卷

页码：

收录情况： SCI

摘要： Genetic populations provide the basis for genetic and genomic research, and chromosome segment substitution lines (CSSLs) are a powerful tool for the fine mapping of quantitative traits, new gene mining, and marker-assisted breeding. In this study, 213 CSSLs were obtained by self-crossing, backcrossing, and marker-assisted selection between cultivated soybean (Glycine max [L.] Merr.) variety Suinong14 (SN14) and wild soybean (Glycine soja Sieb. et Zucc.) ZYD00006. The genomes of these 213 CSSLs were resequenced and 580,524 single-nucleotide polymorphism markers were obtained, which were divided into 3,780 bin markers. The seed-pod-related traits were analyzed by quantitative trait locus (QTL) mapping using CSSLs. A total of 170 QTLs were detected, and 32 QTLs were detected stably for more than 2 years. Through epistasis analysis, 955 pairs of epistasis QTLs related to seed-pod traits were obtained. Furthermore, the hundred-seed weight QTL was finely mapped to the region of 64.4 Kb on chromosome 12, and Glyma.12G088900 was identified as a candidate gene. Taken together, a set of wild soybean CSSLs was constructed and upgraded by a resequencing technique. The seed-pod-related traits were studied by bin markers, and a candidate gene for the hundred-seed weight was finely mapped. Our results have revealed the CSSLs can be an effective tool for QTL mapping, epistatic effect analysis, and gene cloning.

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