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. Author manuscript; available in PMC: 2013 May 1.
Published in final edited form as: Comp Immunol Microbiol Infect Dis. 2012 Jan 4;35(3):241–252. doi: 10.1016/j.cimid.2011.12.002

Fig. 1.

Fig. 1

Phylogenetic tree of order Rickettsiales. Genera in the families Anaplasmataceae and Rickettsiaceae are shown in shaded areas. Species of interest are circled. The Rickettsia are subgrouped according to ancestral group (AG), transitional group (TrG), Typhus group (TG) and spotted fever group (SFG). The tree is based on a clustalW alignment of 16S ribosomal RNA gene sequences using POWER (http://power.nhri.org.tw/power/home.htm).