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Neighbor-Joining phylogenetic tree based on gltA sequences of Rickettsia sp. and R. hoogstraalii. The gltA sequences of Rickettsia australis and Rickettsia akari were employed as an outgroup. All sequences have been denoted by their GenBank accession numbers, followed by species name and country name. The bootstrap values (1000-replications) are shown at each node. The sequences (OQ160793 and OQ160792) of the present study have been marked with bold and underlined fonts.
