┌─ Escherichia coli (DE3 2-380/401) BL21(DE3) (3)  
┌─────────────────────────────────────────────────────────────────┴─ Escherichia coli (2-380/401) 55989 (6)  
┤                                                                    ┌─ Escherichia coli (1-393/396) B7A (1)  
│                                                                   ┌┴─ Escherichia coli (1-388/391) MS 146-1   
└─────────────────────────────────────────────────┬─────────────────┴─ Escherichia coli (1-393/396) APEC O1 (3)  
                                                  └───────────────┬─ fig|6666666.5357.peg.225 TY-2482 strain   
                                                                  └┬─ Escherichia coli (1-390/399) MS 182-1   
                                                                   └┬─ fig|1040638.4.peg.136 O104:H4 str. LB226692 (4)  
                                                                    └─ Escherichia coli (26-424/424) 042 (6)  
  
Tetracycline efflux protein TetA (7)
Others (2)