Fig. 2

Phylogenetic tree based on the partial sequences of the 18S rRNA gene of T. equi. The ML tree and Bayesian inference were implemented by MEGA7 with a Tamura 3-parameter model and MrBayes3.2 with the GTR + G + I model, respectively. The numbers at the nodes represent the ML bootstrap and BI posterior probability values. Bootstrap values < 70 and posterior probabilities < 0.95 are not shown. The gene sequences of T. equi obtained in the present study are indicated by a triangle. The five groups (A, B, C, D and E) represent the different T. equi genotypes