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. 2021 Jun 17;8:675631. doi: 10.3389/fvets.2021.675631

Figure 3.

Figure 3

The maximum likelihood phylogenetic analyses of TPeC strain Cz-2020 and selected species of the genus Treponema. (A, top) The phylogenetic tree is based on the sequence of TP0548 locus showing clustering of TPeC Cz-2020 with TPeC Cuniculi A and with TPeL Z27 A77/78 (the agent of hare syphilis) (9). Treponema pallidum ssp. endemicum (TEN) 11q/j (32–34) was used because other characterized TEN strains (i.e., Bosnia A and Iraq B) contain a putative recombination event at the TP0548 locus (32). There was a total of 619 positions in the final dataset. All positions with <95% site coverage were eliminated. The scale shows the number of substitutions per site. (B, bottom) The phylogenetic tree based on concatenated sequences of TP0105, TP0488, TP0548, and TP0705 loci. TEN subspecies and TPeL are not shown because sequences of TEN 11q/j and TPeL are not available for all these loci. TPeC Cz-2020 is clustered with TPeC Cuniculi A but is still genetically quite distinct. There was a total of 2,945 positions in the final dataset. All positions containing gaps and missing data were eliminated. The scale shows the number of substitutions per site.