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Abstract Verticillium wilt is a major disease in a wide variety of crops and is caused by the fungus Verticillium dahliae Kleb. In Australian cotton growing regions two pathotypes of V. dahliae are described, namely non-defoliating and defoliating, classified on their ability to cause defoliation in cotton ( Gossypium hirsutum ) as well as okra ( Abelmoschus esculentus) and olives ( Olea europaea ). Herein we report the genomes of two isolates of V. dahliae , one predicted to be non-defoliating and the other predicted to be defoliating. Phylogenomic analysis places each isolate into separate clades, but the highly aggressive, predicted defoliating, strain lacks the genomic features reported as important for causing defoliation on cotton in other regions.
Gardiner et al. (Thu,) studied this question.