Figure 1From: Nanoarchaea: representatives of a novel archaeal phylum or a fast-evolving euryarchaeal lineage related to Thermococcales?Unrooted maximum likelihood trees from exhaustive searches based on the F1 and the F2 datasets. (a) F1 dataset; (b) F2 dataset. Numbers at nodes are bootstrap values. Scale bars represent the number of changes per position for a unit branch length. Asterisks indicate constrained nodes.Back to article page