Skip to main content

Table 2 Numbers and distributions of genes associated with different types of secretion systems in mesorhizobial genomes

From: Whole-genome sequencing of Mesorhizobium huakuii 7653R provides molecular insights into host specificity and symbiosis island dynamics

Secretion system and characteristics Gene numbers associated with the formation of different types of secretion systems
  7653R MAFF303099 R7A WSM1271 WSM2075 WSM2073
Type I       
  AprD 4 3 2 2 2 3
  AprE 4 3 1 2 2 3
  TolC 2 1 1 2 2 2
Type II       
  GSP (general secretion pathway)   11 8 11   
  Sec pathway 7 7 7 7 7 7
Type III       
  Rhc pili 22 22     
Type IV       
  F-type (Vir) 10 10 9 12 12 11
  F-type (Trb)   19 10 7 9 16
  P-type (Flp and attachment) 16 16 15 16 16 16
Type V       
  Autotransporter 1 1 1 1 1 1
Type VI 26 18 18 18   
TAT (twin arginine) 3 3 3 3 3 3
SRP 5 5 5 5 5 5
Mechanosensitive channels 1 1 1 1 1 1
Total 101 120 81 87 60 68