Theoretical and Applied Genetics

, Volume 90, Issue 7–8, pp 920–924 | Cite as

RFLP markers linked to scald (Rhynchosporium secalis) resistance gene Rh2 in barley

  • G. F. Schweizer
  • M. Baumer
  • G. Daniel
  • H. Rugel
  • M. S. Röder


Rhynchosporium secalis is the causal organism of barley scald disease. A number of resistance genes against the fungus are well known; one of them, the single dominant Rh2 resistance gene, has been mapped on the linkage map of barley using RFLP (restriction fragment length polymorphism) markers. The Rh2 gene was located on the distal part of chromosome arm 1S co-segregating with the RFLP marker CDO545 in 85 doubled-haploid progeny plants. The spring barley test population used was a cross between the 6-rowed American spring barley cv Atlas, C.I. 4118, carrying the Rh2 resistance gene, and a Bavarian 2-rowed malting barley cv Steffi, susceptible for R. secalis. The assessment of resistance versus susceptibility was based on artificial infections with a one-spore inoculum in greenhouse tests and with pathotype mixtures in field tests. By testing a pathotype mixture of German origin good resistance was found for the Rh2 gene in the field.

Key words

Hordeum vulgare Rhynchosporium secalis Scald Resistance gene Rh2 Restriction fragment length polymorphism (RFLP) 


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Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • G. F. Schweizer
    • 1
  • M. Baumer
    • 1
  • G. Daniel
    • 1
  • H. Rugel
    • 1
  • M. S. Röder
    • 2
  1. 1.Bayerische Landesanstalt für Bodenkultur und Pflanzenbau (LBP), BiotechnologieFreisingGermany
  2. 2.Institut für Pflanzengenetik und Kulturpflanzenforschung (IPK), Abteilung CytogenetikGaterslebenGermany

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