Figure 1
From: Identifying dramatic selection shifts in phylogenetic trees
Simulation tree. The phylogenetic tree used for simulation. There are eight taxa, labeled 0 to 7, related according to the depicted topology with all branch lengths equal. Each simulation assumes a single divergence point (DP) located at a distance l = 0.9 away from the right end of the middle branch, known as branch 8. The vertical line, splits the full phylogeny into two subtrees. Subtree 2 has a stubbed branch where it connected to subtree 1 of length lt8. Subtree 1 has a stubbed branch of length (1 – l)t8.