Fig. 3

Gene family evolution and GO enrichment analysis of O. idahoensis genome draft. A BEAST Phylogenetic tree constructed using single-copy orthologs of gastropod species. Upper and lower 95% highest posterior density divergence are depicted at each node in red. Gene family expansion/contraction values are depicted for a given branch with expansion in purple and contraction in orange. Timescale abbreviations: Pz, Permian; Tr, Triassic; J, Jurassic; K, Cretaceous; T, tertiary; Q, Quaternary. B GO enrichment analysis of 119 significantly expanded gene families in O. idahoensis. C GO enrichment analysis of 58 expressed retrocopies with InterProScan GO annotation in the O. idahoensis genome. Photo credit: O. idahoensis, Richard A. Salsbury; C. unifasciata, Sebatsian SANT CC BY-NC 4.0; A. fulica Alexander R. Jenner CC BY-SA 3.0; B. glabriata, Lewis et al., CC BY 2.5; A. californica, Jerry Kirkhart CC BY 2.0; P. canaliculata, Cheng Te Hsu CC BY-SA 4.0. Figure layout inspired by [42]