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The genetics of resistance to powdery mildew in cultivated oats (Avena sativa L.): current status of major genes

  • Plant Genetics ∙• Original Paper
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Abstract

The genetics of resistance to powdery mildew caused by Blumeria graminis f. sp. avenae of four cultivated oats was studied using monosomic analysis. Cultivar ‘Bruno’ carries a gene (Pm6) that shows a recessive mode of inheritance and is located on chromosome 10D. Cultivar ‘Jumbo’ possesses a dominant resistance gene (Pm1) on chromosome 1C. In cultivar ‘Rollo’, in addition to the gene Pm3 on chromosome 17A, a second dominant resistance gene (Pm8) was identified and assigned to chromosome 4C. In breeding line APR 122, resistance was conditioned by a dominant resistance gene (Pm7) that was allocated to chromosome 13A. Genetic maps established for resistance genes Pm1, Pm6 and Pm7 employing amplified fragment length polymorphism (AFLP) markers indicated that these genes are independent of each other, supporting the results from monosomic analysis.

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Acknowledgements

The authors thank the Deutsche Forschungsgemeinschaft (DFG), Bonn, for the financial support (Ze132/17-1).

Ethical standards

The authors declare that the experiments comply with the current laws of Germany.

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The authors declare that they have no conflict of interest.

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Authors and Affiliations

  1. Division of Plant Breeding and Applied Genetics, Technische Universität München, 85354, Freising-Weihenstephan, Germany

    Sai L. K. Hsam & Friedrich J. Zeller

  2. Institute for Crop Science and Plant Breeding, Bavarian State Research Center for Agriculture, Am Gereuth 8, 85354, Freising, Germany

    Volker Mohler

Authors
  1. Sai L. K. Hsam
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  2. Volker Mohler
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  3. Friedrich J. Zeller
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Correspondence to Volker Mohler.

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Hsam, S.L.K., Mohler, V. & Zeller, F.J. The genetics of resistance to powdery mildew in cultivated oats (Avena sativa L.): current status of major genes. J Appl Genetics 55, 155–162 (2014). https://doi.org/10.1007/s13353-014-0196-y

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  • DOI: https://doi.org/10.1007/s13353-014-0196-y

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