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Tracking of powdery mildew and leaf rust resistance genes in Triticum boeoticum and T. urartu, wild relatives of common wheat

Author

Listed:
  • Nelli A. Hovhannisyan

    (Department of Ecology and Nature Protection, Faculty of Biology, Yerevan State University, Yerevan, Armenia)

  • Mohammad Ehsan Dulloo

    (Bioversity International, Rome, Italy)

  • Aleksandr H. Yesayan

    (Department of Ecology and Nature Protection, Faculty of Biology, Yerevan State University, Yerevan, Armenia)

  • Helmut Knüpffer

    (Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Gatersleben, Germany)

  • Ahmed Amri

    (International Center for Agricultural Research in the Dry Areas (ICARDA), Aleppo, Syria)

Abstract

Wild Triticum and Aegilops species are increasingly used in wheat breeding programmes around the world as donors of genes conferring resistance to biotic and abiotic stresses, as well as of genes that contribute to the improvement of grain quality. In the present study, thirty-nine accessions of diploid species with the A genome (Triticum boeoticum and T. urartu) were evaluated for the presence of the genes conferring resistance to powdery mildew (Blumeria graminis) and leaf rust (Puccinia recondita) using both inoculation tests and sequence tagged sites (STS) marker analyses in order to find correspondence between STS markers and resistance as a trait. The most resistant entries were T. boeoticum accessions. All the marked Lr and Pm resistance genes (Pm1, Pm2, Pm3, Lr10, Lr47, Lr25 and Lr28) were identified in the check T. aestivum cultivar Bezostaya 1. The resistance to powdery mildew in the material studied was conferred by the combination of the Pm1 gene with either Pm2 or Pm3. The Pm1 and Pm3 markers appeared to be suitable for tracking these powdery mildew resistance genes, while the Pm2 gene marker cannot be considered as usable in various genetically different wheat accessions. The presence of the genes Lr25, Lr28 and Lr47 seems to be particularly useful for obtaining leaf rust resistance in T. boeoticum and T. urartu species.

Suggested Citation

  • Nelli A. Hovhannisyan & Mohammad Ehsan Dulloo & Aleksandr H. Yesayan & Helmut Knüpffer & Ahmed Amri, 2011. "Tracking of powdery mildew and leaf rust resistance genes in Triticum boeoticum and T. urartu, wild relatives of common wheat," Czech Journal of Genetics and Plant Breeding, Czech Academy of Agricultural Sciences, vol. 47(2), pages 45-57.
    • Handle: RePEc:caa:jnlcjg:v:47:y:2011:i:2:id:127-2010-cjgpb
    DOI: 10.17221/127/2010-CJGPB
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    References listed on IDEAS

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    1. J. Ovesná & L. Kučera & R. Bocková & V. Holubec, 2002. "Characterization of Powdery Mildew Resistance Donors within Triticum boeoticum Accessions using RAPDs," Czech Journal of Genetics and Plant Breeding, Czech Academy of Agricultural Sciences, vol. 38(3-4), pages 117-124.
    2. Browder, L. E., 1971. "Pathogenic Specialization in Cereal Rust Fungi, Especially Puccinia recondita f. sp. tritici: Concepts, Methods of Study, and Application," Technical Bulletins 171860, United States Department of Agriculture, Economic Research Service.
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