FIGURE 7.

Bayesian-inferred phylogram of type III PKSs. Numbers above branches are posterior probabilities, and branch lengths are proportional to expected numbers of amino acid substitutions per site. Only those nodes with posterior probability of >95 are shown. Convergence was reached with average S.D. of split frequencies of 0.0080 and a potential scale reduction factor of 1.001. The tree was built with E. coli β-ketoacyl-(acyl-carrier protein) synthase III as outgroup. The MRCA of the plant enzymes is marked with a circle.