Rust resistance of the French wheat cultivar Renan

Alena Hanzalová, Veronika Dumalasová, Táťána Sumíková and Pavel Bartoš
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Alena Hanzalová: Crop Research Institute, Prague-Ruzyně, Czech Republic
Veronika Dumalasová: Crop Research Institute, Prague-Ruzyně, Czech Republic
Táťána Sumíková: Crop Research Institute, Prague-Ruzyně, Czech Republic
Pavel Bartoš: Crop Research Institute, Prague-Ruzyně, Czech Republic

Czech Journal of Genetics and Plant Breeding, 2007, vol. 43, issue 2, 53-60

Abstract: Our field experiments confirmed the leaf rust resistance of cv. Renan in the Czech Republic. Whereas the leaf rust resistance gene Lr37 possessed by Renan is generally effective as late as at the adult plant stage, we found one leaf rust isolate that caused resistant to moderately resistant reactions on NIL Lr37 as well as on the cv. Renan already at the seedling stage. This isolate was used in the study of genetics of the leaf rust resistance of cv. Renan in greenhouse experiments. The presence of translocation from Aegilops ventricosa carrying the cluster of rust resistance genes Lr37, Sr38 and Yr17 was also determined by a PCR molecular marker. All experiments confirmed the presence of Lr37 gene in cv. Renan. The presence of Lr14a, postulated earlier, could not be verified. The resistance of cv. Renan in the field was slightly higher than that of the line Tc/8//VPM1 possessing Lr37, which may indicate a more complex genetic base of leaf rust resistance in the cv. Renan. In the progeny of the cross Boka/Renan leaf rust resistance gene Lr37 behaved as a recessive or partially dominant gene, stem rust resistance gene Sr38 as a dominant gene.

Keywords: winter wheat; cv. Renan; leaf rust resistance; Lr37; Sr38 (search for similar items in EconPapers)
Date: 2007
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DOI: 10.17221/1912-CJGPB

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