Panama vs. Maine parallel gene expression differences in <i>D</i>. <i>melanogaster</i> and <i>D</i>. <i>simulans</i>.

10,085 one-to-one orthologs satisfied our minimum expression criteria in all samples. D. melanogaster and D. simulans genes refer to geographically differentially expressed genes that have one-to-one orthologs. “Shared genes” correspond to one-to-one orthologs differentially expressed in both species. P-values were generated by hypergeometric test. Panama vs. Maine parallel gene expression differences in D. melanogaster and D. simulans.