Fig. 5: Pseudogenes and site alignments for vision, taste, diet, and immunity genes.
From: Genomic insights into the secondary aquatic transition of penguins

a Presence/absence of vision, taste, and dietary genes in penguins. Phylogenetic tree of penguins and select outgroups indicate which species have complete or pseudogenes, related to vision (opsins; RH1, RH2, SWS1, SWS2, LWS, and CYP2J19), taste (umami; TAS1R1, TAS1R3, sweet; TAS1R2, bitter; TAS2R1, TAS2R2, TAS2R3, sour; PKD211, salty; SCNN1A, SCNN1B, SCNN1G) and diet (chitinase; CHIA). “Not found” indicates genes that could not be assembled. b Phylogenetic tree of penguins showing alignments of positively selected sites for four genes related to immunity (TLR4, TLR5, IFIT5, and CD81). Sites are shown below the alignment. The background colors are displayed for sites that have 50% conservation. Source data is provided as a Source Data file.