Intercontinental genomic parallelism in multiple three-spined stickleback adaptive radiations.

ABSTRACT: Parallelism, the evolution of similar traits in populations diversifying in similar conditions, provides strong evidence of adaptation by natural selection. Many studies of parallelism focus on comparisons of different ecotypes or contrasting environments, defined a priori, which could upwardly bias the apparent prevalence of parallelism. Here, we estimated genomic parallelism associated with components of environmental and phenotypic variation at an intercontinental scale across four freshwater adaptive radiations (Alaska, British Columbia, Iceland and Scotland) of the three-spined stickleback (Gasterosteus aculeatus). We combined large-scale biological sampling and phenotyping with restriction site associated DNA sequencing (RAD-Seq) data from 73 freshwater lake populations and four mari

SUBMITTER: Magalhaes IS 

PROVIDER: S-EPMC7858233 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature