Genomic Signatures of Selection Across Climate Gradients and a Geographic Mosaic of Coevolution in an Ant Social Parasite-Host System.

ABSTRACT: Coevolutionary dynamics in host-parasite systems are shaped by reciprocal selection and environmental context. When hosts and parasites share ancestry and ecological overlap, selection can act on similar traits, but population structure and geography may generate adaptive mosaics. Here, we present the first study to investigate genome-wide signatures of selection in response to a broad climatic gradient and a geographic mosaic of coevolution between a social parasite and its host. We examined these processes in the dulotic ant Temnothorax americanus and its congeneric host Temnothorax longispinosus using population genomics, genome-wide association analyses, and transcriptomics. Host populations showed very weak and parasites stronger population structure, enabling geographic mosaic dynami

SUBMITTER: Macit MN 

PROVIDER: S-EPMC12662053 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature