Figure 3

Consensus tree from bayesian analyses using different amino acid models. Topology and branch lengths correspond to the consensus tree from a bayesian analysis using the MtHydro model. Values at nodes are the posterior probabilities using the following models from left to right respectively: amino acid functional recoding, MtZoa, MtHydro and the CAT model (in brackets). All models place Xenoturbella as a basal deuterostome. Functional recoding, MtZoa and MtHydro support paraphyletic deuterostomes, due to LBA between the urochordates and the non-bilaterians. The CAT model supports monophyletic deuterostomes, although it groups the urochordates with the echinoderms. Note that the lower the support for paraphyletic deuterostomes, the lower the support for Xenoturbella as basal deuterostome.