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Characterization of broad-spectrum resistance to Soybean mosaic virus in soybean [Glycine max (L.) Merr.] cultivar "RN-9'

文献类型： 外文期刊

作者： Ren, Rui 1 ; Yin, Jinlong 1 ; Zheng, Huanfang 1 ; Wang, Tao 1 ; Liu, Shichao 1 ; Karthikeyan, Adhimoolam 1 ; Yang, Qin 1 ;

作者机构： 1.Nanjing Agr Univ, Natl Ctr Soybean Improvement, Natl Key Lab Crop Genet & Germplasm Enhancement, Key Lab Biol & Genet Improvement Soybean,Minist A, Weigang 1, Nanjing, Jiangsu, Peoples R China

2.Handan Acad Agr Sci, Inst Cereal & Oil Crops, Handan, Peoples R China

3.Zhejiang Acad Agr Sci, Inst Crop & Nucl Technol Utilizat, Hangzhou, Zhejiang, Peoples R China

关键词： broad-spectrum resistance; genetic analysis; linkage analysis; simple sequence repeat markers; Soybean mosaic virus

期刊名称：PLANT BREEDING （ 影响因子：1.832； 五年影响因子：1.956 ）

ISSN： 0179-9541

年卷期： 2018 年 137 卷 4 期

页码：

收录情况： SCI

摘要： Soybean mosaic virus (SMV) can cause serious yield losses in soybean. Soybean cultivar RN-9' is resistant to 15 of 21 SMV strains. To well-characterize this invaluable broad-spectrum SMV-resistance, populations (F-1, F-2 and F-2:3) derived from resistant (R) x susceptible (S) and RxR crosses were tested for SMV-SC18 resistance. Genetic analysis revealed that SC18 resistance in RN-9' plus two elite SMV-resistant genotypes (Qihuang No.1' and Kefeng No.1') are controlled by independently single dominant genes. Linkage analysis showed that the resistance of RN-9' to SMV strains SC10, SC14, SC15 and SC18 is controlled by more than one gene(s). Moreover, Rsc10-r and Rsc18-r were both positioned between the two simple sequence repeats markers Satt286 and Satt277, while Rsc14-r was fine-mapped in 136.8-kb genomic region containing sixteen genes, flanked by BARCSOYSSR_06_0786 and BARCSOYSSR_06_0790 at genetic distances of 3.79 and 4.14cM, respectively. Allelic sequence comparison showed that Cytochrome P450-encoding genes (Glyma.06g176000 and Glyma.06g176100) likely confer the resistance to SC14 in RN-9'. Our results would facilitate the breeding of broad-spectrum and durable SMV resistance in soybeans.

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