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GrainGenes Reference Report: BIU-230-109

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Reference	BIU-230-109
Title	Virulence of Puccinia recondita f. sp. tritici population in Poland in 1998-2001
Journal	Biuletyn Instytutu Hodowli i Aklimatyzacji Roslin
Year	2003
Volume	230
Pages	109-117
Author	Wozniak-Strzembicka A
Language	Polish
Abstract	A total of 1096 isolates of Puccinia recondita f.sp. tritici (Puccinia hordei) was collected from Poland, from 1998 to 2001. These isolates were tested for virulence on seedlings of a set of 40 near isogenic Thatcher lines (NIL) of wheat with the Lr resistance genes. High virulence frequency (67 to 100%) to majority of the Lr genes was found. The frequencies of virulence to the lines with Lr1, Lr2a and Lr2b were lower than in preceding years. The virulence to Lr38 and LrW was rare. No virulence was found to the resistance genes Lr9, Lr19, Lr23, Lr24 and Lr25. Twenty-three different pathotypes of P. recondita f.sp. tritici were identified using 15 near isogenic lines with the resistance genes Lr1, Lr2a, Lr2b, Lr2c, Lr3, Lr9, Lr11, Lr15, Lr17, Lr19, Lr21, Lr23, Lr24, Lr26, Lr28. The most widespread pathotypes were 02722, 02726, 03726 and 53726. The effectiveness of the Lr genes against leaf rust was evaluated at the adult stage in the field. The Lr9, Lr13, Lr19, Lr22, Lr24, Lr25, Lr29, Lr34, Lr35 and Lr37 resistance genes were effective
Keyword	disease resistance [ Show all 9 ]

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