首页> 中文期刊> 《农业科学学报:英文版》 >Marker-assisted pyramiding of soybean resistance genes Rsc4, Rsc8, and Rsc14Q to soybean mosaic virus

Marker-assisted pyramiding of soybean resistance genes Rsc4, Rsc8, and Rsc14Q to soybean mosaic virus

         

摘要

cqvip:Soybean mosaic virus(SMV)is one of the major viral pathogens affecting soybean crops worldwide.Three SMV resistance genes,R_(SC4),R_(SC8),and R_(SC14Q),have been identified and mapped on soybean chromosomes 14,2,and 13 from Dabaima,Kefeng 1,and Qihuang 1 cultivars,respectively.Soybean cultivar Nannong 1138-2 is widely grown in the Yangtze River Valley of China.In this study,crosses were made between Qihuang 1×Kefeng 1 and Dabaima×Nannong 1138-2.Ten simple sequence repeat(SSR)markers linked to three resistance loci(R_(SC4),R_(SC8),and R_(SC14Q))were used to assist pyramided breeding.Pyramided families containing three resistance loci(R_(SC4),R_(SC8),and R_(SC14Q))were evaluated by inoculating them with 21 SMV strains from China.Results indicated that the 10 markers can be used effectively to assist the selection of resistant individuals containing R_(SC4),R_(SC8),and R_(SC14Q).A total of 53 F_6 plants were confirmed to contain three homozygous alleles conferring resistance to SMV.Five F_7 homozygous pyramided families exhibited resistance to 21 strains of SMV and showed desirable agronomic traits using dual selection.The strategy of pyramiding resistance gene derived from different varieties has practical breeding value in providing broad-spectrum resistance against the existing strains of SMV in China.

著录项

  • 来源
    《农业科学学报:英文版》 |2017年第11期|P.2413-2420|共8页
  • 作者单位

    [1]College of Agriculture;

    Nanjing Agricultural University~National Center for Soybean Improvement~National Key Laboratory for Crop Genetics and Germplasm Enhancement;

    Nanjing 210095;

    P.R. China;

    [2]Crop Institute;

    A nhui Academy of Agricultural Sciences/Anhui Key Laboratory of Crops Quality Improving;

    Hefei 230031;

    P.R. China;

    [1]College of Agriculture;

    Nanjing Agricultural University~National Center for Soybean Improvement~National Key Laboratory for Crop Genetics and Germplasm Enhancement;

    Nanjing 210095;

    P.R. China;

    [1]College of Agriculture;

    Nanjing Agricultural University~National Center for Soybean Improvement~National Key Laboratory for Crop Genetics and Germplasm Enhancement;

    Nanjing 210095;

    P.R. China;

    [1]College of Agriculture;

    Nanjing Agricultural University~National Center for Soybean Improvement~National Key Laboratory for Crop Genetics and Germplasm Enhancement;

    Nanjing 210095;

    P.R. China;

    [1]College of Agriculture;

    Nanjing Agricultural University~National Center for Soybean Improvement~National Key Laboratory for Crop Genetics and Germplasm Enhancement;

    Nanjing 210095;

    P.R. China;

    [1]College of Agriculture;

    Nanjing Agricultural University~National Center for Soybean Improvement~National Key Laboratory for Crop Genetics and Germplasm Enhancement;

    Nanjing 210095;

    P.R. China;

    [1]College of Agriculture;

    Nanjing Agricultural University~National Center for Soybean Improvement~National Key Laboratory for Crop Genetics and Germplasm Enhancement;

    Nanjing 210095;

    P.R. China;

  • 原文格式 PDF
  • 正文语种 CHI
  • 中图分类 大豆病虫害;
  • 关键词

    大豆花叶病毒病 分子标记辅助 聚合育种 抗病基因 大豆品种 简单重复序列 抗性基因 SMV;

    机译:大豆花叶病毒病 分子标记辅助 聚合育种 抗病基因 大豆品种 简单重复序列 抗性基因 SMV;
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