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Table 1 General features of Rickettsia genomes.

From: Analysis of the Rickettsia africae genome reveals that virulence acquisition in Rickettsia species may be explained by genome reduction

Species (strains) Genome size (bp) G+C content (%) Protein-coding genes RNAs References
Spotted fever group      
R. africae (ESF-5) 1,290,917 32.4 1,123 39 Present study
   Chromosome 1,278,540 32.4 1,112 39  
   Plasmid pRA 12,377 33.4 11 0  
R. akari (Hartford) 1,23106 32.3 1,259 35 *
R. conorii (Malish 7) 1,268,755 32.4 1,374 39 [23]
R. felis (URRWXCal2) 1,587,240 32.5 1,512 39 [28]
   Chromosome 1,485,148 32.5 1,444 39  
   Plasmid pRF 62,829 33.6 68 0  
   Plasmid pRFδ 39,268 33.2 44 0  
R. massiliae (Mtu5) 1,376,184 32.5 1,192 39 [29]
   Chromosome 1,360,898 32.5 1,180 39  
   Plasmid pRMA 15,286 31.4 12 0  
R. rickettsii (Sheila Smith) 1,257,710 32.5 1,345 36 *
R. rickettsii (Iowa) 1,268,175 32.4 1,384 37 [25]
R. sibirica (246) 1,250,021 32.5 1,083 36 *
Typhus group      
R. prowazekii (Madrid E) 1,111,523 29.0 834 39 [58]
R. typhi (Wilmington) 1,111,496 28.9 838 39 [26]
Third group      
R. bellii (RML369-C) 1,522,076 31.7 1,429 40 [15]
R. bellii (OSU 85–389) 1,528,980 31.6 1,476 36 *
R. canadensis (McKiel) 1,159,772 31.1 1,093 36 *
  1. * Unpublished genomes available in GenBank: R. akari (Hartford) [GenBank: NC_009881],R. rickettsii (Sheila Smith) [GenBank: NC_009882], R. sibirica (246) [GenBank: NZ_AABW00000000], R. bellii (OSU 85–389) [GenBank: NC_009883], and R. canadensis (McKiel) [GenBank: NC_009879].