Ancestral state reconstruction for supported nodes on Bradyrhizobium phylogeny1.

1Ancestral states are inferred on the Bradyrhizobium phylogeny (Figure 1) for the subset of internal nodes with clade support values equal or greater than 0.9.2Clade support indicates the Bayesian posterior support value for each ancestral node.3Pr(nodulating) indicates the posterior probability of the ancestral state of nodulation estimated using both Bayesian and maximum likelihood algorithms.