The population structure and recent colonization history of Oregon threespine stickleback determined using restriction‐site associated DNA‐sequencing
Genome‐wide analysis of genetic diversity (π) and correlations of alleles within individuals in subpopulations (FIS) supported a role for introgressive hybridization in coastal populations and a recent expansion in central Oregon. Our results exhibit the power of next‐generation sequencing genomic approaches such as RAD‐seq to identify both historical population structure and recent colonization history.