Figure 3.

Unconstrained ML molecular phylogeny for arrestins, in collapsed form. (a) Jawed vertebrate arrestins. The dashed arrow shows the alternative position of the root that was sometimes found with other combinations of alignment and tree inference method. (b) Jawed and agnathan arrestins, excluding the single sequence, lamprey Arr-VY (see text). The fully expanded tree for (b) is presented in electronic supplementary material, figure S3.