Figure 5

Class II and III RNR protein phylogenies. Phylogenetic trees constructed by the Maximum likelihood method (PhyML) based on the aligned amino acid sequences of a) nrdJ: the collapsed clades include: Cyanobacteria spp. (Prochlorococcus marinus, Synechococcus sp. PCC 7335 G and WH 7803), Mycobacteriophages (Airmid, Backyardigan, Benedict, Bxz2, Che12, D29, DaVinci, Eagle, EricB, George, Gladiator, Hammer, JHC117, Microwolf, PackMan, Peaches, Pukovnik, RedRock, Rockstar, Shaka, and Vix), Mycobacteria spp. (Mycobacterium sp. MCS and M. tuberculosis), Pseudomonas phages (YuA and M6), Roseophages (DSS3P2 and EE36P1), and Thermus phages (P23-45, P74-26, and phiYS40), and b) nrdD: the collapsed clades includes Aeromonas phage cluster 1 (Aeh1, phiAS5, and PX29), Aeromonas phage cluster 2 (25, 31, 44RR2.8 t, and phiAS4), A eromonas spp. (A. hydrophila and salmonicida), Enterobacteria phage cluster 1 (RB51, RB14, and RB32), Enterobacteria phage cluster 2 (Phi1, RB49, and JSE), Enterobacteria phage cluster 3 (RB16 and RB43), Enterobacteria phage cluster 4 (EPS7, SPC35, and T5), Enterobacteria phage cluster 5 (T4 and T4T), and Vibrio spp. (V. cholerae and parahaemolyticus). The phages and bacterial hosts (both taxon labels and nodes) are color coded in green and red, respectively. The bootstrap values are shown for nodes with ≥ 70% support. The scale bar represents the number of amino acid substitutions per site.