Figure 4.

Plylogenetic tree of the taxa included in the regulatory region analysis. The circular phylogenetic tree shows the evolutionary relationships for those species, used for the regulatory region analysis. The putative time of the gene duplication event is shown with the grey dot, corresponding to the divergence time of gnathostomata. Under the name of each organism the Wnt5 paralogs are shown, with the regulatory module, when present, marked with a black box.