Phylogenetic analyses of cox 1 (a), cob (b) and cox 1 + cob (c) amino acid sequences of B. orientalis . Each neighbor-joining tree shows the phylogenetic relationship of protein coding genes of Babesiaorientalis mt genome determined in this study with other apicomplexan parasites. Bootstrap values at the nodes are indicating the degree of support for each cluster. Vertical lengths in each tree are not significant and are merely set for clarity. GenBank accession numbers are indicated on the right of each species name. Tetrahymena thermophila was used as an outgroup.