Physiologic specialization of wheat leaf rust (Puccinia triticina Eriks.) in the Slovak Republic in 2009-2011

Alena Hanzalová, Taťána Sumíková, Jozef Huszár and Pavel Bartoš
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Alena Hanzalová: Department of Genetics and Plant Breeding Methods, Crop Research Institute, Prague-Ruzyně, Czech Republic
Taťána Sumíková: Department of Genetics and Plant Breeding Methods, Crop Research Institute, Prague-Ruzyně, Czech Republic
Jozef Huszár: Department of Biology, J. Selye University, Komárno, Slovak Republic
Pavel Bartoš: Department of Genetics and Plant Breeding Methods, Crop Research Institute, Prague-Ruzyně, Czech Republic

Czech Journal of Genetics and Plant Breeding, 2012, vol. 48, issue 3, 101-107

Abstract: In 2009-2011 virulence of the wheat leaf rust population was studied on Thatcher near-isogenic lines with Lr1, Lr2a, Lr2b, Lr2c, Lr3a, Lr9, Lr11, Lr13, Lr15, Lr17, Lr19, Lr21, Lr23, Lr24, Lr26 and Lr28. Samples of leaf rust were obtained from different parts of the Slovak Republic. A total of 122 wheat leaf rust isolates were analysed. Resistance gene Lr19 was effective to all tested isolates. Virulence to Lr9 was found, however only in one isolate. Gene Lr24 conditioned resistance to almost all rust collections. A lower frequency of virulence to Lr2a and Lr28 was also observed. Nineteen winter wheat cultivars grown in Slovakia were tested with 8 leaf rust isolates. Winter wheat cultivar Bona Dea was resistant to all isolates applied in the greenhouse test. Presence of Lr genes was estimated according to the reactions of the tested cultivars. Presence of Lr10, Lr26, Lr34 and Lr37 was studied by molecular markers.

Keywords: leaf rust pathotypes; Lr genes; resistance; wheat (search for similar items in EconPapers)
Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjg:v:48:y:2012:i:3:id:28-2012-cjgpb

DOI: 10.17221/28/2012-CJGPB

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