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Theoretical and Applied Genetics

, Volume 128, Issue 2, pp 187–197 | Cite as

The genetic basis of resistance to barley grass yellow rust (Puccinia striiformis f. sp. pseudo-hordei) in Australian barley cultivars

  • Lida Derevnina
  • Meixue Zhou
  • Davinder Singh
  • Colin R. Wellings
  • Robert F. ParkEmail author
Original Paper

Abstract

Key message

Resistance to Puccinia striiformis in 18 barleys was conferred by one or more genes. In two genotypes, resistance mapped to chromosomes 5HL and 7HL (seedling), and 5HS (adult plant).

Abstract

Twenty barley genotypes were assessed for resistance to a variant of P. striiformis [barley grass yellow rust (BGYR)] that is adapted to wild Hordeum sp. (barley grass) and is known to be virulent on several Australian barley cultivars. With the exception of Biosaline-19, all of the genotypes tested were resistant to BGYR. Genetic analyses of 16 Australian and three exotic barley lines indicated that each carried at least a single gene for resistance. Seedling resistance genes identified in the doubled haploid population developed from a cross between Franklin and Yerong were mapped to the long arm of chromosomes 5H and 7H, respectively. These genes were given the temporary designations of Rpsp-hFranklin and Rpsp-hYerong. Three QTL were detected in the same population when tested at the adult plant stage, two of them being in a similar position to Rpsp-hFranklin and Rpsp-hYerong and the third one was mapped to 5HS. Allelism tests between genotypes that exhibited seedling infection type responses to BGYR that were similar to Franklin and Yerong revealed that resistance in most were genetically independent of Rpsp-hFranklin and Rpsp-hYerong.

Keywords

Double Haploid Stripe Rust Infection Type Susceptible Genotype Barley Cultivar 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

The research was supported by the Australian Grains and Research Development Corporation through a Postgraduate Research Scholarship (GRS139).

Conflict of interest

The authors declare they have no conflict of interest.

Supplementary material

122_2014_2323_MOESM1_ESM.docx (102 kb)
Supplementary material 1 (DOCX 102 kb)

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Lida Derevnina
    • 1
    • 3
  • Meixue Zhou
    • 2
  • Davinder Singh
    • 1
  • Colin R. Wellings
    • 1
  • Robert F. Park
    • 1
    Email author
  1. 1.Plant Breeding Institute, University of SydneyNarellanAustralia
  2. 2.Tasmanian Institute of Agriculture, University of TasmaniaKings MeadowsAustralia
  3. 3.Genome CentreUniversity of California DavisDavisUSA

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