Fig. 2

Phylogenetic analysis of conserved genes of Siphoviridae bacteriophages. Phylogenetic tree of conserved gene on bacteriophages of Siphoviridae family, and fSE1C and fSE4S. The evolutionary history was inferred using the Neighbor-Joining method [23]. DNA Polymerase, helicase, major tail, portal protein, terminase, and major capside gene sequences were selected. The percentage of replicate trees in which the associated taxa clustered together in the bootstrap test (1000 replicates) are shown next to the branches [24]. The evolutionary distances were computed using the p-distance method [25] and are in the units of the number of base differences per site. Evolutionary analyses were conducted in MEGA6 [26]