Figure 7

Phylogenetic tree of taar12 genes. Phylogenetic tree of taar and taar-like genes, with all nodes collapsed (grey triangles) except class II taar12 genes (ancestral node denoted by grey circle), cartilaginous and mammalian class II taar genes. Gene set and tree construction are same as in Fig. 1. Species are indicated by the initials of their Latin names, see Table 1 for full names. Species subgroups are visualized by colour code as indicated. Genes are denoted by species abbreviation and unique part of gene name, e.g. Aa-b (black arrow) denotes taar12b of Anguilla anguilla, the European eel. Note large gene expansions in eels and carp. Numbers indicate % branch support for basal nodes (cutoff 80%). Scale bar, number of amino acid substitutions per site.