Table 1.
Genome statistics and plasmid content of Rickettsia species subdivided into different subgroups†.
| Rickettsia species | Size (Mb) | RAST CDS | GC (%) | Plasmids |
|---|---|---|---|---|
| Spotted fever group | ||||
| R. africae | 1.29 | 1545 | 32.4 | 1 |
| R. conorii | 1.27 | 1578 | 32.4 | - |
| R. heilongjiangensis | 1.28 | 1562 | ND | - |
| R. helvetica | 1.42 | 1739 | 32.2 | 1 |
| R. honei | 1.27 | 1614 | 32.4 | - |
| R. japonica | 1.28 | 1575 | 32.7 | 1 |
| R. massiliae (2)‡ | 1.28-1.38 | 1601-1721 | 32.5 | 1 |
| R. montanensis | 1.28 | 1513 | 32.6 | - |
| R. parkeri | 1.30 | 1604 | 32.4 | - |
| R. peacockii | 1.31 | 1558 | 32.6 | 1 |
| R. philipi | 1.29 | 1570 | 32.5 | - |
| R. rhipicephali | 1.31 | 1612 | 32.3 | 1 |
| R. rickettsii (8)‡ | 1.26-1.29 | 1547-1595 | 32.4-32.6 | - |
| R. sibirica | 1.25 | 1554 | 32.5 | - |
| R. slovaca (2)‡ | 1.28 | 1598-1611 | 32.5 | - |
| R. endosymbiont of Ixodus scapularis | 2.1 | 2404 | 32.8 | 4 |
| Candidatus R. amblyommii | 1.48 | 1856 | 32.4 | 3 |
| Typhus group | ||||
| R. prowazekii (8)‡ | 1.11 | 892-924 | 29 | - |
| R. typhi (3)‡ | 1.11 | 875-892 | 28.9 | - |
| Transitional group | ||||
| R. australis | 1.32 | 1565 | 32.3 | 1 |
| R. akari | 1.23 | 1437 | 32.3 | - |
| R. felis | 1.59 | 1810 | 32.5 | 1 |
| Ancestral group | ||||
| R. bellii (2)‡ | 1.52-1.53 | 1612-1657 | 31.6 | - |
| R. canadensis (2)‡ | 1.15-1.16 | 1130-1230 | 31-31.1 | - |
Based on the phylogenetic classification proposed by Gillespie et al. [1]. The genome size, RAST, CDS and GC content of all available species and strains, but not subspecies listed in PATRIC database [183], are included. The number of plasmids only accounts for those reported in the published literature. Note that the genome statistics from the following strains belonging to different species are used for compiling the table: R. africae ESF-5; R. akari strain Hartford; R. australis strain Cutlack; R. bellii strains OSU 85-389 and RML369-C; R. canadensis strains CA410 and McKiel; R. conorii strain Malish 7; R. endosymbiont of Ixodes scapularis; R. felis URRWXCal2; R. heilongjiangensis 054; R. helvetica C9P9; R. honei RB; R. japonica YH; R. massiliae strains MTU5 and AZT80; R. montanensis strain OSU 85-930; R. parkeri strain Portsmouth; R. peacockii strain Rustic; R. philipii strain 364D; R. prowazekii strains BuV67-CWPP, Chernikova, Dachau, GvV257, Katsinyian, Madrid E, Rp22 and RpGv24; R. rhipicephali strain 3-7-female6-CWPP; R. rickettsii strains Sheila Smith, Arizona, Brazil, Colombia, Hauke, Hino, Hlp#2 and Iowa; R. sibirica 246; R. slovaca strains 13-B and D-CWPP; R. typhi strains B9991CWPP, TH1527 and Wilmington; and Candidatus R. amblyommii strain GAT-30V.
Represents the number of strains for which the complete genome sequence is available and genome statistics are used for compiling the data.
CDS: Coding sequences; GC: Guanine-cytosine content; ND: Not determined; PATRIC: Pathosystems Resource Integration Center; RAST: Rapid annotation using subsystems technology.