Fig. 3
From: Genomic exaptation enables Lasius niger adaptation to urban environments
Phylogenetic tree of hymenopteran CYP9 genes. Branches where statistically significant positive selection was found by Z-test are in red. Positive selection was found in most of the terminal branches of the phylogenetic tree. Many lineage-specific duplications are evident in L. niger, A. echinator and C. biroi