Figure 3.

Posterior probabilities for representative patterns of the four-taxon tree T₄ with branch lengths ${\lambda }_{\text{A}}={\lambda }_{\text{B}}={\lambda }_{\text{C}}={\lambda }_{\text{D}}=0.2$ and ${\lambda }_{\text{AB}}={\lambda }_{\text{CD}}=0.1$, and character distribution π₀=π₁=1/2. The selected patterns (a) 0000, (b) 0001, (c) 0011 and (d) 0101 represent constant, parsimonious uninformative, compatible and incompatible patterns, respectively.