Sequences of the 623 genomes provided by the Drosophila Genome Nexus (Lack et al. 2015 (link)) were downloaded and and repeat regions masked. Additionally, the DGN indel VCFs were downloaded and indel locations masked (±5 bp). Resequence data used to confirm a subset of the variants was obtained from the DPGP1 project's Solexa (now Illumina) sequencing (Solexa_release_1/dpgp_Solexa_r1.0.tar">http://www.dpgp.org/Solexa_release_1/dpgp_Solexa_r1.0.tar) and from the DGRP (Mackay et al. 2012 (link)) project's Roche 454 sequencing (ftp://ftp.hgsc.bcm.edu/DGRP/freeze1_July_2010/snp_calls/454/). Pooled Nescent data were from Bergland et al. (2014) (link), Kapun and Fabian (2017) , and SRA accession SRP075757.