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Mining genetic loci and candidate genes related to salt tolerance traits in soybean

文献类型： 外文期刊

作者： Tian, Rui 1 ; Han, Dai 1 ; Shi, Xiaolei 1 ; Shan, Qimike 1 ; Ding, Sunlei 1 ; Wu, Yucheng 1 ; Zhang, Jinbo 4 ; Yan, Yongliang 1 ;

作者机构： 1.Crop Inst, Xinjiang Acad Agr Sci, Nanchang Rd 403, Urumqi 830091, Peoples R China

2.Natl Cent Asian Characterist Crop Germplasm Resour, Xinjiang Lab Special Environm Microbiol, Urumqi 830091, Peoples R China

3.Xinjiang Agr Univ, Coll Agr, Urumqi 830052, Peoples R China

4.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China

5.Chinese Acad Sci, Key Lab Ecol Safety & Sustainable Dev Arid Lands, Urumqi 830011, Peoples R China

关键词： Soybean; Salt tolerance-related traits; GWAS; Candidate genes

期刊名称：SCIENTIFIC REPORTS （ 影响因子：3.9； 五年影响因子：4.3 ）

ISSN： 2045-2322

年卷期： 2025 年 15 卷 1 期

页码：

收录情况： SCI

摘要： Soybean is an important crop worldwide that provides similar to 50% oil for humans. Salinity is a major abiotic stress that inhibits soybean growth and yield. Dissecting the genetic basis of salt tolerance is an effective way for soybean plants to combat salt-related yield losses. In this study, the variety salt tolerance index (STIv) of a natural population of 140 soybean germplasms was calculated in terms of plant height (PH), leaf area (LA), shoot fresh weight (SFW) and shoot dry weight (SDW), which were measured under normal condition and in a 1.50% NaCl solution. GWAS analysis was subsequently conducted on the basis of STIv and 150 K SNP markers of "Zhongdouxin-1". The results revealed that 365 significant SNPs located on 19 chromosomes (excluding Gm03) were associated with STIv. Among them, 108 SNPs were associated with LA-STIv, 71 SNPs associated with PH-STIv, 95 SNPs associated with SDW-STIv and 91 SNPs associated with SFW-STIv. A total of 333 genes were identified according to the flanking region (150 kb) of the significant SNPs. 333 genes were identified. Based on gene functional annotations, SNP mutations, and RNA expressions, nine causal genes responsible for soybean salt tolerance were identified. Thus, the significantly associated SNPs and candidate genes detected in this study might provide novel insights into soybean salt tolerance in breeding programs.

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