Figure 4.

Tree reconstruction accuracy for the simulated 4-taxon datasets, using JC+I+covarion model. The number of times with which each of the three possible 4-taxon trees was reconstructed, with the highest proportional frequency in the Bayesian analysis, assuming JC+I+covarion model. The higher the increase in the proportion of variable sites in lineages B and C, the lower the tree reconstruction accuracy.