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Identifying Quantitative Trait Loci and Candidate Genes Conferring Resistance to Soybean Mosaic Virus SC7 by Quantitative Trait Loci-Sequencing in Soybean

文献类型： 外文期刊

作者： Zhang, Yong 1 ; Song, Jiling 1 ; Wang, Lei 1 ; Yang, Mengping 1 ; Hu, Kaifeng 1 ; Li, Weiwei 1 ; Sun, Xuhong 1 ; Xue, Hong 1 ; Dong, Quanzhong 1 ; Zhang, Mingming 1 ; Lou, Shubao 1 ; Yang, Xingyong 1 ; Du, Hao 2 ; Li, Yongli 2 ; Dong, Lidong 2 ; Che, Zhijun 3 ; Cheng, Qun 2 ;

作者机构： 1.Heilongjiang Acad Agr Sci, Keshan Branch, Qiqihar, Peoples R China

2.Guangzhou Univ, Sch Life Sci, Innovat Ctr Mol Genet & Evolut, Guangzhou, Peoples R China

3.Ningxia Univ, Sch Agr, Yinchuan, Ningxia, Peoples R China

关键词： soybean; QTL; Soybean mosaic virus; SC7 strain; QTL-seq; MATE transporter

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： Soybean mosaic virus (SMV) is detrimental to soybean (Glycine max) breeding, seed quality, and yield worldwide. Improving the basic resistance of host plants is the most effective and economical method to reduce damage from SMV. Therefore, it is necessary to identify and clone novel SMV resistance genes. Here, we report the characterization of two soybean cultivars, DN50 and XQD, with different levels of resistance to SMV. Compared with XQD, DN50 exhibits enhanced resistance to the SMV strain SC7. By combining bulked-segregant analysis (BSA)-seq and fine-mapping, we identified a novel resistance locus, R-SMV-11, spanning an approximately 207-kb region on chromosome 11 and containing 25 annotated genes in the reference Williams 82 genome. Of these genes, we identified eleven with non-synonymous single-nucleotide polymorphisms (SNPs) or insertion-deletion mutations (InDels) in their coding regions between two parents. One gene, GmMATE68 (Glyma.11G028900), harbored a frameshift mutation. GmMATE68 encodes a multidrug and toxic compound extrusion (MATE) transporter that is expressed in all soybean tissues and is induced by SC7. Given that MATE transporter families have been reported to be linked with plant disease resistance, we suggest that GmMATE68 is responsible for SC7 resistance in DN50. Our results reveal a novel SMV-resistance locus, improving understanding of the genetics of soybean disease resistance and providing a potential new tool for marker-assisted selection breeding in soybean.

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