┬─────────────────────────────────────────────────────────────────── Escherichia coli K12 (133)  
└──────────────────────────────────────────────────────────────────┬─ Escherichia coli (1-91/104) MS 198-1 (3)  
                                                                   └┬─ Escherichia coli (1-89/111) B088 (2)  
                                                                    └─ Escherichia coli (1-91/113) K12 (125)  
  

  
Ribosome hibernation protein YfiA
 (3)
  
Ribosome hibernation protein YhbH
 (1)