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. 2014 May;20(5):838–842. doi: 10.3201/eid2005.131088

Figure 3.

Figure 3

Maximum clade credibility tree for Rickettsia spp. detected in seabird ticks (Amblyomma loculosum and Carios capensis) of the western Indian Ocean as determined on the basis of a 913-bp fragment of the Rickettsia gltA gene. The nucleotide substitution model was selected by using the jModelTest 2.1.2 tool (https://code.google.com/p/jmodeltest2/), and Bayesian analyses were performed using MrBayes 3.1.2 (http://mrbayes.sourceforge.net/), with chain lengths of 2 million generations sampled every 1,000 generations. Black dots indicate Bayesian posterior probabilities >0.7. Taxa names are represented by the identification of the sample, the sampling site, and the tick species. GenBank accession numbers are indicated in parentheses. The sequences generated in this study are color-coded according to the geographic origin of samples (see Figure 1) and are accessible in GenBank (accession nos. KF360024–KF360030 and KJ001229–KJ001281). Scale bars indicates nucleotide substitutions per site.