No major cost of evolved survivorship in Drosophila melanogaster populations coevolving with Pseudomonas entomophila.

ABSTRACT: Rapid exaggeration of host and pathogen traits via arms race dynamics is one possible outcome of host-pathogen coevolution. However, the exaggerated traits are expected to incur costs in terms of resource investment in other life-history traits. The current study investigated the costs associated with evolved traits in a host-pathogen coevolution system. We used the Drosophila melanogaster (host)-Pseudomonas entomophila (pathogen) system to experimentally derive two selection regimes, one where the host and pathogen both coevolved, and the other, where only the host evolved against a non-evolving pathogen. After 17 generations of selection, we found that hosts from both selected populations had better post-infection survivorship than controls. Even though the coevolving popul

SUBMITTER: Ahlawat N 

PROVIDER: S-EPMC9065972 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature