Genomic basis of parallel adaptation varies with divergence in Arabidopsis and its relatives.

ABSTRACT: Parallel adaptation provides valuable insight into the predictability of evolutionary change through replicated natural experiments. A steadily increasing number of studies have demonstrated genomic parallelism, yet the magnitude of this parallelism varies depending on whether populations, species, or genera are compared. This led us to hypothesize that the magnitude of genomic parallelism scales with genetic divergence between lineages, but whether this is the case and the underlying evolutionary processes remain unknown. Here, we resequenced seven parallel lineages of two Arabidopsis species, which repeatedly adapted to challenging alpine environments. By combining genome-wide divergence scans with model-based approaches, we detected a suite of 151 genes that show parallel signatures of

SUBMITTER: Bohutinska M 

PROVIDER: S-EPMC8166048 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature