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Figure 4 | BMC Evolutionary Biology

Figure 4

From: An updated 18S rRNA phylogeny of tunicates based on mixture and secondary structure models

Figure 4

Phylogeny of tunicates inferred from the complete 18S rRNA dataset (110 taxa and 1373 sites). Bayesian majority-rule consensus tree obtained under the CAT-GTR+Γ mixture model implemented in PhyloBayes. Support values at nodes represent: Bayesian Posterior Probabilities (PP) obtained under: 1. PP1 = CAT-GTR+Γ (PhyloBayes)/2. PP2 = RNA6C+Γ+I and GTR+Γ+I (Phase)/3. PP3 = GTR+Γ+I (MrBayes)/4. BP = Maximum likelihood bootstrap percentages (BP) under GTR+Γ+I (PAUP*). Support values are indicated for the main tunicate clades, and within Aplousobranchia, when PP ≥ 0.95 and BP ≥ 65. Newly sequenced Aplousobranchia species are underlined. Among the Stolidobranchia, a newly obtained sequence from Botryllus schlosseri is marked with an asterisk. The red triangle indicates the evolutionary shift in secondary structure of the 18S rRNA molecule within Aplousobranchia.

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