FIG. 2.

Topology convergence for trees from subsets of all single-molecule families. For each masked sequence alignment, the Robinson-Foulds symmetric difference was used to compare topologies between the Bayesian tree and either (A) the corresponding ML tree or (B) the final tree (Fig. 3). The data for the protein alignments were fit to the power law curves (A) y = 1,110x^−0.70 (R² = 0.61) and (B) y = 1,150x^−0.55 (R² = 0.74). The values (zero in both cases) for the final tree were not used in the curve fitting, but their positions are marked.