┌─ Escherichia coli E24377A (1)  
                                                                     ┌┴─ Escherichia coli 042 (4)  
                                                                    ┌┴─ Escherichia coli MS 175-1   
                                                                   ┌┴─ fig|1040638.4.peg.687 O104:H4 str. LB226692 (6)  
                                                                  ┌┴┬─ Escherichia coli 2362-75   
                                                                  │ └┬─ Escherichia coli BL21 (3)  
┌─────────────────────────────────────────────────────────────────┤  └─ Escherichia coli B str. REL606 (3)  
┤                                                                 └─ Escherichia coli MS 107-1 (1)  
│                                                                  ┌─ Escherichia coli (8-665/677) MS 115-1   
└──────────────────────────────────────────────────────────────────┤┌─ Escherichia coli (8-665/677) MS 145-7   
                                                                   └┤┌─ Escherichia coli (8-665/677) K12 (76)  
                                                                    ││  ┌─ Escherichia coli (8-665/677) TA143   
                                                                    └┤ ┌┴─ Escherichia coli (8-664/676) ETEC H10407   
                                                                     │┌┴─ Escherichia coli (8-665/677) B7A (1)  
                                                                     └┤ ┌─ Escherichia coli (8-665/677) SMS-3-5   
                                                                      └┬┴─ Escherichia coli (8-665/677) 1827-70   
                                                                       └┬─ Escherichia coli (8-665/677) EC4100B   
                                                                        └┬─ fig|6666666.5357.peg.3724 TY-2482 (8-665/677) strain   
                                                                         └┬─ Escherichia coli (8-665/677) IAI39 (1)  
                                                                          └┬─ Escherichia coli (8-665/677) 2362-75 (21)  
                                                                           └┬─ Escherichia coli (8-665/677) MS 21-1   
                                                                            └─ Escherichia coli (8-665/677) 536 (4)  
  
High-affinity choline uptake protein BetT (13)
Secondary glycine betaine transporter BetU (7)
Others (2)