Fig. 3
![Fig. 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs40851-016-0056-1/MediaObjects/40851_2016_56_Fig3_HTML.gif)
Molecular phylogenetic trees of CTNNB1 genes. Maximum-likelihood trees of CTNNB1 genes were constructed with the long alignment for 20 tetrapod species (a) and the short alignment for 26 squamate species (b). Bootstrap values (>50Â %) are shown on each node. Classification is shown on the right side of species. Blue and pink bars in b show clades of Z and W homologs of caenophidian species, respectively