Selection Over Small and Large Spatial Scales in the Face of High Gene Flow.

ABSTRACT: Local adaptation represents the balance of selection and gene flow. Increasingly, studies find that adaptation can occur on spatial scales much smaller than the scale of dispersal, resulting in balanced polymorphisms within populations. However, microgeographic adaptation might be facilitated or hindered by large-scale environmental heterogeneity, such as across latitude. Marine systems present a special case, as many marine species have high dispersal capacity so that dispersal 'neighbourhoods' may encompass environmental heterogeneity over both small and large spatial scales. Here, we leverage fine-scale sampling across the California range of the Pacific purple sea urchin (Strongylocentrotus purpuratus), a species with previous evidence of both local adaptation and extremely high gene f

SUBMITTER: Rumberger C 

PROVIDER: S-EPMC11874683 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature