Virulence profiles and fungicide target-gene variability in Puccinia graminis f. sp. tritici populations from Russian regions
Wheat stem rust, caused by Puccinia graminis f. sp. tritici (Pgt), threatens food security because of the pathogen's high virulence and genetic variability, as well as the risk of selecting fungicide-resistant strains. For the first time in Russia, we conducted a comparative analysis of virulence and genetic diversity in the fungicide-target genes SdhA-SdhD and Cyp51 using 35 monopustular Pgt isolates collected from regions with contrasting levels of fungicide pressure.
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