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Article

k-mer-based GWAS reveals a candidate avirulence gene and structural variation in Puccinia triticina linked to gain of Lr20 virulence.

BMC genomics - 26 Nov 2025

Tsushima Ayako, Morier-Gxoyiya Césarée, Savva Loizos, Czajowski Grzegorz, Wilderspin Sarah, Czembor Paweł, Holdgate Sarah, Saunders Diane G O

Abstract excerpt

BACKGROUND: Plant pathogens secrete effector proteins into their hosts to promote colonisation. Among these are avirulence (Avr) effectors, which can be recognised by specific host immune receptors, triggering an immune response that prevents pathogen progression. This recognition exerts strong evolutionary pressure on pathogens to alter and/or eliminate Avr genes to escape recognition. Consequently,...

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PMID: 41299216
DOI: 10.1186/s12864-025-12230-4
PMCID: PMC12659103

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