Figure 2.
Majority-rule consensus tree generated in the Bayesian phylogenetic analysis of rickettsial sca5 gene performed with the program MrBayes v3.1.2, using the GTR + I + G substitution model. The analysis was run for 1,000,000 generations. The numbers near the nodes are posterior probabilities for the corresponding clade. The analysis involved 25 nucleotide sequences. There were a total of 778 positions in the final dataset. The tree was drawn in FigTree 1.4, and rooted with transitional group (Rickettsia felis and Rickettsia australis.)