Avirulence on Ve1 is a protein first described from the fungal plant-pathogen, Verticillium dahliae, and is encoded by the Ave1 gene. The presence of Ave1 in an isolate of Verticillium dahliae conveys an avirulence phenotype when infecting a Tomato host that possesses the R-gene Ve1.
Orthologous genes Orthologs of Ave1 have been identified in a number of plant pathogenic fungi.
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