Virulence and Genomic Analysis of Puccinia coronata f. sp. avenae in Australia Identifies New Races and a New Lineage in 2024.

doi:10.1094/PDIS-11-25-2239-SC

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Virulence and Genomic Analysis of Puccinia coronata f. sp. avenae in Australia Identifies New Races and a New Lineage in 2024.

Plant disease - 1 Aug 2026

Su Zhouyang, Lewis David, Henningsen Eva C, Nguyen Duong T, Sperschneider Jana, Dodds Peter N, Figueroa Melania

Abstract excerpt

Crown rust, caused by Puccinia coronata f. sp. avenae (Pca), remains a persistent threat to oat production in Australia. To monitor recent shifts in virulence and population structure, 30 Pca isolates collected during the 2024 growing season across major Australian oat-producing regions were analyzed. Virulence analysis of 30 isolates using 52 oat differential lines identified 25 unique races that were not...

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PMID: 41655275
DOI: 10.1094/PDIS-11-25-2239-SC

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