Adaptation without Dominance in Pseudomonas syringae Pathovars.

ABSTRACT: Understanding local adaptation of phytopathogens has significant practical and economic implications. The opportunistic pathogen Pseudomonas syringae exemplifies this challenge, causing regular epidemics in diverse host plants. Many pathogenic microbes, including P. syringae, are divided into intraspecific lineages, or pathovars, based on their host-of-isolation. However, whether pathovar classifications reflect adaptation of the pathogen to the host (local adaptation) or a competitive advantage of the pathogen in the host (local dominance), often goes untested. In this study, we performed in vitro growth assays and factorial controlled infections to test whether a suite of five P. syringae pathovars are locally adapted to, and/or locally dominant in, their hosts-of-isolation. We found evi

SUBMITTER: Satterwhite RS 

PROVIDER: S-EPMC12808166 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature