Figure 3

Phylogenetic analysis of bilaterian opsins places Terebratalia c-opsin with c-opsins from deuterostomes and other protostomes. Phylogram from Bayesian likelihood analysis with four independent runs of 5,000,000 generations each. Posterior probabilities are presented above branches; bootstrap support values >50% from a 1,000 replicate maximum likelihood bootstrap analysis are shown below branches.