Figure 2From: A genomic timescale of prokaryote evolution: insights into the origin of methanogenesis, phototrophy, and the colonization of landPhylogenetic tree (ME; α = 1.20) of archaebacteria rooted with eubacteria, using sequences of 32 proteins (7,338 amino acids). Bootstrap values are shown on nodes; asterisks indicate support values > 95%. For major groups, support values from three phylogenetic methods (ME/ML/Bayesian) are indicated in italics.Back to article page