Maladaptation in wild populations of the generalist plant pathogen Pseudomonas syringae.

ABSTRACT: Multihost pathogens occur widely on both natural and agriculturally managed hosts. Despite the importance of such generalists, evolutionary studies of host-pathogen interactions have largely focused on tightly coupled interactions between species pairs. We characterized resistance in a collection of Arabidopsis thaliana hosts, including 24 accessions collected from the Midwest USA and 24 from around the world, and patterns of virulence in a collection of Pseudomonas syringae strains, including 24 strains collected from wild Midwest populations of A. thaliana (residents) and 18 from an array of cultivated species (nonresidents). All of the nonresident strains and half of the resident strains elicited a resistance response on one or more A. thaliana accessions. The resident strains that fail

SUBMITTER: Kniskern JM 

PROVIDER: S-EPMC3053089 | biostudies-literature | 2011 Mar

REPOSITORIES: biostudies-literature