Table 3.

Comparison of nucleotide sequence difference positions of the 16S rRNA gene from the E. phagocytophila genogroup

Ehrlichia spp.Host, isolate or strainOriginNucleotide difference positionsdGenBank accession no. or reference
303440180345843
E. equi CAMEBSCalif.AAATGG AF172165
CAMAWICalif. AF172164
CASITLCalif.G AF172166
CASOLJCalif.C AF172167
AndersonCalif. M73223
AliceCalif. AF036645
MerettriciousCalif.G AF036647
AtempoCalif.GC AF036646
HGE agentCAHU-HGE1Calif. AF093788
CAHU-HGE2Calif. AF093789
USG3R.I.GU020521
NCH-1a Nantucket Island/// U23038
E. phagocytophila Ovine, OS strainScotland M73220
Goat, FG strainScotland M73224
Closely related E. phagocytophilagenogroupHorseSwitzerlandG AF057707
HorseSwitzerlandG U77389
Dog, Rosa isolateSwedenG U10873
Cat,SwedenG 8
Mouseb, PL1559Minn.G U72878
Mouseb, PL505Minn.G U72879
Tick (Ixodes ricinus)SwitzerlandG AF084907
Tick, NCH-1/530-N8c Nantucket Island/// U23039
  • a Not identified in nucleotide position numbers 143, 144, 149, 168, 173, 192, and 195 based on CAHU-HGE1 sequence position compared with CAHU-HGE1.

  • b Peromyscus leucopus.

  • c Not identified in nucleotide position numbers 97, 234, 235, 261, 410, 458, 503, 517, 621, 681, 687, and 692 based on CAHU-HGE1 sequence position.

  • d /, Not identified; −, gap by Multalin sequence alignment program; •, conserved position.