Phylogenetic tree of red-like and green-like rbcL sequences. The amino-acid Bayesian tree was generated using MrBayes with the following parameters: rates = invgamma; aamodelpr = mixed; ngen = 500000; nchains = 4. The burnin was set to 100 to generate the tree and this burnin gave a convergence diagnostic of 0.017. The nodal support values are PROML bootstrap support values obtained using global rearrangements, and four rate categories and an invariant category estimated using PUZZLE. Support values are shown on nodes with BP ≥ 50.