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Molecular mapping and genetic fine-structure of the rym5 locus encoding resistance to different strains of the Barley Yellow Mosaic Virus Complex

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Abstract

 The genetic structure of the rym5 locus was studied in a population comprising 391 doubled-haploid lines that were evaluated for resistance to two strains of Barley Yellow Mosaic Virus (BaYMV-1, 2) and to Barley Mild Mosaic Virus (BaMMV). The absence of recombinants that are able to differentiate between the reaction to these different bymoviruses provides evidence that rym5 is a complex locus, which is either composed of several closely linked genes or of an allelic series of a single gene. For marker-assisted introgression of this locus into adapted barley germplasm, a CAPS (cleaved amplified polymorphic sequence) and a microsatellite marker were developed that flank the gene at distances of 0.8 and 1.3% recombination, respectively.

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Authors and Affiliations

  1. Institute for Plant Genetics and Crop Plant Research (IPK), Corrensstraße 3, D-06466 Gatersleben, Germany E-mail: graner@ipk-gatersleben.de, , , , , , DE

    A. Graner & S. Streng

  2. Institute for Resistance Genetics, Graf-Seinsheim-Straße 23, D-85461 Grünbach, Germany, , , , , , DE

    A. Kellermann & E. Bauer

  3. Institute of Crop Science and Plant Breeding I, Justus-Liebig-University, Ludwigstraße 23, D-35390 Giessen, Germany, , , , , , DE

    A. Schiemann, B. Pellio & F. Ordon

  4. Scottish Crop Research Institute, Invergowrie, Dundee DD2 5DA, United Kingdom, , , , , , GB

    R. Waugh

Authors
  1. A. Graner
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  2. S. Streng
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  3. A. Kellermann
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  4. A. Schiemann
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  5. E. Bauer
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  6. R. Waugh
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  7. B. Pellio
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  8. F. Ordon
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Received: 19 June 1998 / Accepted: 24 July 1998

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Graner, A., Streng, S., Kellermann, A. et al. Molecular mapping and genetic fine-structure of the rym5 locus encoding resistance to different strains of the Barley Yellow Mosaic Virus Complex. Theor Appl Genet 98, 285–290 (1999). https://doi.org/10.1007/s001220051070

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  • DOI: https://doi.org/10.1007/s001220051070

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