Fig. 3.—

Consensus tree. (A) Consensus phylogeny of the 147 QfO reference organisms. Green branches highlight congruent and bifurcating topologies, grey branches indicate topologies that are either multifurcating or incongruent in at least one of the species trees. Red triangles mark nodes that are supported by at least 75% of the gene trees (see also supplementary file S4, Supplementary Material online). (B) Eukaryotic clade of the consensus tree at highest (bifurcating, left handed) and lowest (L90, right handed) resolution, pruned to the species set as in figure 2. Bifurcation is not yet possible for most internal nodes in the archaeal and bacterial clades; the topologies are thus identical for both trees.