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Cereal Research Communications

, Volume 35, Issue 3, pp 1449–1458 | Cite as

Genetic Analysis of Thirteen Accessions of Hordeum vulgare ssp. spontaneum Resistant to Powdery Mildew

  • A. Dreiseitl
  • J. ŘepkováEmail author
  • P. Lízal
Open Access
Article

Abstract

Thirteen accessions of wild barley (Hordeum vulgare spp. spontaneum) resistant to powdery mildew caused by the fungus Blumeria graminis f. sp. hordei were studied with the aim of determining the number of resistance genes and their allelic relationships to the Mla locus on the short arm of chromosome 1H. In five accessions (PI391130, PI466193, PI466200, PI466495 and PI466510), the resistance was caused by one gene, in seven accessions (PI354949, PI391081, PI466158, PI466197, PI466211, PI466297 and PI466461) by two independent genes and in PI301004 by three independent genes. The type of inheritance of all analysed genes except two was dominant or semi-dominant; only one of two genes in PI391081 and PI466297 was recessive. Allelism tests confirmed that in 10 accessions one gene was allelic with the Mla locus, and in three accessions (PI391081, PI466193 and PI466297) the resistance genes were different from the Mla locus.

Keywords

allelism barley Blumeria graminis f. sp. hordei Mla locus resistance wild barley 

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Copyright information

© Akadémiai Kiadó, Budapest 2007

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  1. 1.Agricultural Research Institute Kroměříž Ltd.KroměřížCzech Republic
  2. 2.Department of Genetics and Molecular Biology, Faculty of SciencesMasaryk UniversityBrnoCzech Republic

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