Cereal Research Communications
Volume/Issue:
Volume 35: Issue 3
Genetic analysis of thirteen accessions of Hordeum vulgare ssp. spontaneum resistant to powdery mildew
Authors: A. Dreiseitl 1 , J. Řepková 2 , and P. Lízal 2
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  • 1 Agricultural Research Institute Kroměříž Ltd. Kroměříž Czech Republic
  • 2 Masaryk University Department of Genetics and Molecular Biology, Faculty of Sciences Brno Czech Republic
DOI:
https://doi.org/10.1556/crc.35.2007.3.9
Page Count:
1449–1458
Publication Date:
01 Sep 2007
Online Publication Date:
07 Aug 2007
Article Category:
Research Article
Restricted access

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.

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Cover Cereal Research Communications
Cereal Research Communications A Quarterly of the Cereal Research Non-Profit Ltd. Company
Print ISSN:
0133-3720
Online ISSN:
1788-9170
Keywords:
allelism; barley; Blumeria graminis f. sp. hordei; Mla locus; resistance; wild barley

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