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Lr39 + Pm21: a new effective combination of resistance genes for leaf rust and powdery mildew in wheat

Author

Listed:
  • Aleksandra PIETRUSIŃSKA

    (Department of Plant Breeding and Genetics and)

  • Paweł Częstobor CZEMBOR

    (Department of Plant Pathology, Plant Breeding and Acclimatization Institute, National Research Institute at Radzików, Błonie, Poland)

  • Jerzy Henryk CZEMBOR

    (Department of Plant Breeding and Genetics and)

Abstract

Two effective resistance genes were introduced, one for leaf rust (Lr39) and the other for powdery mildew (Pm21), into the susceptible German wheat cv. Lexus. Molecular selection of plant material was carried out using closely linked markers to the introduced genes (foreground selection). In addition, for the BC1F1 population, background selection was carried out using AFLP markers that were distributed randomly throughout the wheat genome. Moreover, resistance tests were conducted using natural pathogen populations of Puccinia triticina and Blumeria graminis. The use of molecular markers for foreground selection in combination with pathology tests enabled 66 homozygous lines to be obtained that were simultaneously resistant to leaf rust and powdery mildew.

Suggested Citation

  • Aleksandra PIETRUSIŃSKA & Paweł Częstobor CZEMBOR & Jerzy Henryk CZEMBOR, 2013. "Lr39 + Pm21: a new effective combination of resistance genes for leaf rust and powdery mildew in wheat," Czech Journal of Genetics and Plant Breeding, Czech Academy of Agricultural Sciences, vol. 49(3), pages 109-115.
    • Handle: RePEc:caa:jnlcjg:v:49:y:2013:i:3:id:150-2012-cjgpb
    DOI: 10.17221/150/2012-CJGPB
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