Data Accessibility

Sequence reads for the ddRAD dataset used for GWA mapping and FST analyses of solitary populations were archived under http://web.corral.tacc.utexas.edu/Stuart_2017_NatureEE_Data_Code/ on the University of Texas Austin Corral server by Stuart et al. (2017). Sequence reads for the genotyping-by-sequencing dataset used for FST analyses of benthic-limnetic species pairs were deposited on the NCBI Sequence Read Archive under the project number SRP107890 (see Table S1 in Samuk et al., 2017 for more information). The R code used for analyses and the underlying data files will be archived in the Dryad database upon acceptance.