PREreview of bioRxiv article "A generalist pathogen view of diverse host evolutionary histories through polygenic virulence"
This is a review of Caseys et al. bioRxiv doi: https://doi.org/10.1101/507491
posted on June 25, 2019. This study aims at addressing whether coevolutionary models of host-pathogen interactions apply to a generalist pathogen that exhibits quantitative virulence across a broad range of plants. They generated an exhaustive virulence matrix for the nectrophic fungus Botrytis cinerea
on 90 genotypes of 8 plant species. They conclude that this pathosystem doesn’t fit traditional arms-race coevolution models with quantitative variation in susceptibility distinct from the phylogenetic relationships between the examined plants.