Additional file 9.

Phylogenetic tree showing the organization of sca genes in Rickettsia species. Phylogenetic relationships were inferred from aligned sequences using the Mega3.1 software with the Neighbor-Joining method. Bootstrap values are indicated at the nodes. The Figure is a phylogenetic tree showing the organization of sca genes in Rickettsia species.

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Fournier et al. BMC Genomics 2009 10:166   doi:10.1186/1471-2164-10-166