Multi-locus sequence typing of geographically and temporally diverse strains of Mycoplasma hominis.

This study aimed to investigate the genetic diversity of 108 geographically and temporally diverse strains of Mycoplasma hominis using a multi-locus sequence typing scheme (MLST). We extracted MLST data of 87 strains from PubMLST database and retrieved MLST gene sequences from 21 complete genomes of M. hominis available in GenBank database. MLST scheme identified 65 Sequence types (STs), which were grouped into five clonal complexes (CC) and 47 singletons. Phylogenetic analysis revealed that the majority of M. hominis isolates were clustered according to their country of origin, showing some significant specificity trends for the nation. Although recombination was detected, it was not significant enough to alter the clonal population structure of M. hominis. In sum, MLST scheme provides insightful data on the phylogenetics of international strains of M. hominis, arguing for the existence of genetically differentiable STs according to their origin of isolation.

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Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.