(A) Dot plot alignment of 20 phage genome sequences. 1. Phage HY01, 2. E. coli phage RB51 (FJ839693), 3. E. coli O157:H7 phage ECML-134 (JX128259), 4. E. coli O157:H7 phage AR1 (AP011113), 5. Yersinia phage PST (KF208315), 6. S. flexneri phage Shfl2 (HM035025), 7. E. coli phage T4 (AF158101), 8. E. coli phage ime09 (JN202312), 9. E. coli phage RB32 (DQ904452), 10. E. coli O157:H7 phage wV7 (HM997020), 11. Cronobacter sakazakii phage vB_CsaM_GAP161 (JN882287), 12. Klebsiella pneumoniae phage KP27 (HQ918180), 13. Serratia sp. phage phiMAM1 (JX878496), 14. Campylobacter jejuni phage CPX (JN132397), 15. E. coli O157:H7 phage bV_EcoS_AKFV33 (HQ665011), 16. E. coli phage HK106 (JQ086369), 17. E. coli phage mEp234 (JQ182732), 18. Bacillus cereus phage Bastille (JF966203), 19. E. coli phage vB_EcoM-FV3 (JQ031132), 20. Salmonella Enteritidis phage PVP-SE1 (GU070616). (B) Phylogenetic tree analysis of terminase large subunits from phage HY01 and 19 phages using the neighbor-joining method. Bootstrap values are indicated at the branches of the tree. Group I phages are indicated with a bracket.