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Inheritance and Allelic Relationships of Resistance Genes for Soybean mosaic virus in 'Corsica' and 'Beeson' Soybean

文献类型： 外文期刊

作者： Shakiba, Ehsan 1 ; Chen, Pengyin 1 ; Shi, Ainong 2 ; Li, Dexiao 3 ; Dong, Dekun 4 ; Brye, Kris 1 ;

作者机构： 1.Univ Arkansas, Dep Crop Soil & Environm Sci, Fayetteville, AR 72701 USA

2.Syngenta Seeds, Slater, IA 50224 USA

3.Northwest Univ Agr & Forestry, Coll Agr, Yangling 712100, Shaanxi, Peoples R China

4.Zhejiang Acad Agr Sci, Inst Crop & Nucl Technol Utilizat, Hangzhou 310021, Zhejiang, Peoples R China

期刊名称：CROP SCIENCE （ 影响因子：2.319； 五年影响因子：2.631 ）

ISSN： 0011-183X

年卷期： 2013 年 53 卷 4 期

页码：

收录情况： SCI

摘要： Soybean mosaic virus (SMV) is an important viral disease of soybean [Glycine max (L.) Merr.] and causes a drastic reduction of seed yield and quality. Soybean mosaic virus isolates can be classified into one of seven strain groups, G1 through G7. Three loci with SMV resistance alleles Rsv1, Rsv3, and Rsv4 have been reported so far. Each locus contains multiple alleles: nine alleles at Rsv1, three alleles at Rsv3, and two alleles at Rsv4. Soybean cultivars Corsica (PI 559931) and Beeson (PI 548510) exhibit different patterns of response to SMV strains than differential cultivars with known genes. The objective of this study was to investigate the inheritance and allelism of resistance genes in Corsica and Beeson. To examine the inheritance of SMV resistance, Corsica and Beeson were crossed with the susceptible cultivar Essex, and the F-2 and F-3 progenies were inoculated with a G7 isolate. To identify the allelic relationship of genes in Corsica and Beeson with known SMV resistance loci, they were crossed with PI 96983 (Rsv1), 'L29' (Rsv3), and V94-5152 (Rsv4), and their F-2 plants and F-2:3 lines were inoculated with G7. A serological tissue blotting immunoassay (TBIA) was used to confirm the presence or absence of the virus in the inoculated plants. Molecular markers were used to confirm the phenotypic data. The results showed a monogenic dominant resistance in Corsica, with the resistant gene located at the Rsv1 locus. Beeson also contains a single dominant gene for SMV resistance, but the gene is located at the Rsv4 locus. Both genes in Corsica and Beeson confer a different SMV reaction pattern than other reported alleles at the same loci. Therefore, we propose the new symbols of Rsv1-c for the resistant gene in Corsica and Rsv4-b for the resistant gene in Beeson. The results from the genetic study were confirmed by the molecular markers and TBIA. The information from this study can be used for parent selection by breeders in cross breeding and gene pyramiding.

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