Bayesian topology from the analysis of the combined, concatenated data. Subgenera are abbreviated as in Fig. 1. The tree is a consensus tree resulting from a Bayesian analysis of our concatenated data set based on cox1 plus 16S rRNA plus morphology. The credibility values are posterior probabilities derived from 20,000 trees representing 2 million generations after burnin (upper left), bootstrap values from the 50% majority-rule consensus MP tree of the same data (lower right, in quotation marks); values for nodes following the basal divergence within subgenera are omitted. The node numbers refer to the inferred ancestral character states given in Table 5. The inset tree on grey background is a Bayesian tree based on cox1 plus 16S rRNA and the credibility values are posterior probabilities derived from 20,000 trees representing 2 million generations after burnin.