Population Genomics Reveals Demographic History and Climate Adaptation in Japanese Arabidopsis halleri.

ABSTRACT: Climate oscillations in the Quaternary forced species to major latitudinal or altitudinal range shifts. It has been suggested that adaptation concomitant with range shifts plays key roles in species responses during climate oscillations, but the role of selection for local adaptation to climatic changes remains largely unexplored. Here, we investigated population structure, demographic history and signatures of climate-driven selection based on genome-wide polymorphism data of 141 Japanese Arabidopsis halleri individuals, with European ones as outgroups. Coalescent-based analyses suggested a genetic differentiation between Japanese subpopulations since the Last Glacial Period (LGP), which would have contributed to shaping the current pattern of population structure. Population demographic

SUBMITTER: Suda RA 

PROVIDER: S-EPMC12085087 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature