Figure 3From: Analysis of the Rickettsia africae genome reveals that virulence acquisition in Rickettsia species may be explained by genome reductionPresence of the tra gene cluster in Rickettsia species. Raf: R. africae; Rma: R. massiliae; Rfe: R. felis; Rbe: R. bellii; Rco: R. conorii; Rsi: R. sibirica; Rri: R. rickettsii; Rak: R. akari; Rpr: R. prowazekii; Rty: R. typhi.Back to article page