Rickettsia raoultii

Su, Si, Hong, Mei, Cui, Meng-Yu, Gui, Zheng, Ma, Shi-Fa, Wu, Lin, Xing, Li-Li, Mu, Lan, Yu, Jing-Feng, Fu, Shao-Yin, Gao, Rui-Juan & Qi, Dong-Dong, 2023, Microbial diversity of ticks and a novel typhus group Rickettsia species (Rickettsiales bacterium Ac 37 b) in Inner Mongolia, China, Parasite (Paris, France) 30 (58), pp. 1-13 : 7

Phylogenetic analysis of Rickettsia raoultii

The R. raoultii (OP286857) sequences were randomly selected to build a phylogenetic tree, named after regions and displayed on the phylogenetic tree with squares ( Fig. 9c ). The phylogenetic tree of the 16S rRNA gene shows that R. raoultii found in Inner Mongolia is on the same branch as R. raoultii strain IM 16 (KY474575) and R. raoultii isolate Binxian-91 ( MN 446747). The sequences were compared and analyzed with MEGA 7.0 software and show that the 16S rRNA gene sequence of R. raoultii in Inner Mongolia is 100% homologous with the R. raoultii IM 16 strain (KY474575) in China and R. raoultii ( MN 446747) found in Haemaphysalis longicornis in Bin County, Shanxi Province.

Figures

Figure 9. Phylogenetic tree of Rickettsiales bacterium Ac37b, Rickettsia bellii, Rickettsia raoultii, Anaplasma and Coxiella in ticks based on neighbor-joining (NJ) modeling; only values higher than 60 were added to the tree branches. (a) Phylogenetic tree of Rickettsiales bacterium Ac37b identified in Inner Mongolia; the 16S rRNA gene sequences obtained in this study are marked with black squares (1320 bp) and triangles (1430 bp). (b) Phylogenetic tree of Rickettsia bellii identified in Inner Mongolia; the 16S rRNA gene sequences obtained in this study are marked with black squares (1109 bp). (c) Phylogenetic tree of Rickettsia raoultii identified in Inner Mongolia; the 16S rRNA gene sequences obtained in this study are marked with black squares (855 bp). (d) Phylogenetic tree of Anaplasma identified in Inner Mongolia; the 16S rRNA gene sequences obtained in this study are marked with black squares (1455 bp) and triangles (547 bp). (e) Phylogenetic tree of Coxiella identified in Inner Mongolia; the 16S rRNA gene sequences obtained in this study are marked with black squares (1463 bp).