Figure 5.

Terminase phylogeny. A maximum-likelihood phylogenetic tree of Caudovirales terminase large-subunit domains (PF03237) is shown (1000 iterations, JTT + G model). Only bootstrap values >50% are indicated at the nodes of the tree, and bootstrap scores greater than 90% are indicated with a black dot. Average branch length distance of leaves less than 0.4 were collapsed and are shown as triangles. Reference sequences are marked (see color legend at the top). Abbreviations are as follows. HMO-2011: Puniceispirillum phage HMO-2011; HTVC010P: Pelagibacter phage HTVC010P; RM378: Rhodothermus phage RM378; P-RSM6: Cyanophage P-RSM6. The black dotted line, solid line, and bright blue line indicate the sequences obtained from this study.