Adaptive introgression candidates in San Salvador Island specialists.

These 11 candidate regions feature significant f4 values and signatures of selective sweeps in specialists, SNPs fixed between specialists, and low genetic divergence (Dxy) between C. laciniatus and one of the specialists. The number of fixed SNPs that were in coding positions of a gene are provided in parentheses after the total number in the region. The specialist(s) with a selective sweep detected in the 98th percentile of the SweeD composite likelihood ratio test and the lowest levels of genetic diversity (π) and Tajima’s D estimates within the 2% lower tail of the simulated Tajima’s D distribution are listed for each region.