Note.—Only genes from the FEG class were significant and only in the house finch and the ancestral passerine lineages. Columns represent the given GO category and identification number (category/GO ID), GO term, the number of annotated genes within that term (annotated), the number of FEG detected (significant), the number of expected genes (see Extended Materials and Methods in supplementary information, Supplementary Material online) from the specific GO class (Expected), the significance level from the Fisher’s exact test (P value) and the level of significance after correcting for multiple tests with false discovery rate (FDR) <0.05 (corrected P value). MF, molecular function; CC, cellular component; BP, biological process.