Figure 2

Circular representation of Rickettsia plasmids. A) The pRA plasmid: circles indicate (from the outside to the inside, on the reverse and forward strands) the GC skew, GC content, and ORFs; B) Rickettsia plasmids sequenced to date: circles indicate (from the outside to the inside, on the reverse and forward strands) R. felis pRF plasmid (red), R. felis pRFδ plasmid (blue), R. monacensis pRM plasmid (green), R. massiliae pRMa plasmid (grey), and R. africae pRA plasmid (black).