┌─ Escherichia coli (158-382/1353) MS 21-1 (2)  
                                                             ┌┴──── Escherichia coli (158-382/1353) ED1a (1)  
┌────────────────────────────────────────────────────────────┴── Escherichia coli (158-382/1353) B7A (1)  
┤                                                             ┌─ Escherichia coli (159-384/1255) MS 124-1 (1)  
│                                                         ┌───┴── Escherichia coli (159-384/1255) KO11 (2)  
└─────────────────────────────────────────────────┬───────┴── Escherichia coli (159-384/1255) O157:H7 str. EC4401 (1)  
                                                  └────┬────────────── fig|6666666.5357.peg.4900 TY-2482 (94-319/725) strain  [2] 
                                                       └─────┬── Escherichia coli (171-396/1267) E22 (1)  
                                                             └┬─ Escherichia coli (94-319/1190) TA206   
                                                              └─ Escherichia coli (94-323/1190) SE11   
  

  
IncI1 plasmid conjugative transfer DNA primase
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