Phylogeny of red algal and red algal-derived plastids using psbA and rbcL sequences. (A) Minimum evolution psbA tree using LogDet distances. The bold letters indicate all dinoflagellates, whereas the underlined taxa contain fucoxanthin. A total of 957 nucleotides were considered. The LogDet bootstrap values (2,000 replications) are shown above the branches and ME protein Poisson bootstrap values are shown below the branches. The thick branches denote >95% posterior probability for groups to the right resulting from a Bayesian inference. A total of 500,000 MCMC generations were run and the posterior probabilities were determined from 4,141 probable trees. (B) Minimum evolution rbcL tree using LogDet distances. Only the subtree containing the fucoxanthin-containing dinoflagellates (underlined) is shown. The entire tree is shown as Fig. 4. A total of 810 nucleotides (only first and second positions) were considered. The bootstrap and Bayesian inference (4,593 probable trees) were done as above.