Microbial diversity of ticks and a novel typhus group Rickettsia species (Rickettsiales bacterium Ac 37 b) in Inner Mongolia, China Author Su, Si Graduate School, Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia, China Author Hong, Mei School of Basic Medicine, Inner Mongolia Medical University, Hohhot 010110, Inner Mongolia, China Author Cui, Meng-Yu Graduate School, Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia, China Author Gui, Zheng First Hospital of Jilin University, Changchun 130021, China Author Ma, Shi-Fa Hulunbuir Mental Health Center, Hulunbuir 022150, Inner Mongolia, China Author Wu, Lin Beijing Guoke Biotechnology Co., Ltd, 102200 Beijing, China Author Xing, Li-Li Department of Infection Control, Second Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia Autonomous Region 010000, China Author Mu, Lan School of Basic Medicine, Inner Mongolia Medical University, Hohhot 010110, Inner Mongolia, China Author Yu, Jing-Feng School of Basic Medicine, Inner Mongolia Medical University, Hohhot 010110, Inner Mongolia, China Author Fu, Shao-Yin Inner Mongolia Academy of Agricultural & Animal Husbandry Science, Hohhot 010031, Inner Mongolia, China Author Gao, Rui-Juan School of Basic Medicine, Inner Mongolia Medical University, Hohhot 010110, Inner Mongolia, China Author Qi, Dong-Dong Hulunbuir Mental Health Center, Hulunbuir 022150, Inner Mongolia, China text Parasite 2023 Paris, France 2023-12-12 30 58 1 13 http://dx.doi.org/10.1051/parasite/2023057 journal article 10.1051/parasite/2023057 1776-1042 PMC10714680 38084939 12524515 Phylogenetic analysis of Rickettsiales bacterium Ac37b The Rickettsiales bacterium Ac37b (OP286853 and OP286855) sequences were randomly selected to build a phylogenetic tree, named after regions and displayed on the phylogenetic tree with squares and triangles ( Fig. 9a ). The phylogenetic tree of the 16S rRNA gene showed that Rickettsiales bacterium Ac37b found in Inner Mongolia is in the same branch as the Rickettsiales bacterium Ac37b (CP009217) found in Amblyomma cajennense from Brazil , and their homology is 100% according to sequence alignment analysis using MEGA 7.0 software.