Fig. 4

A maximum likelihood phylogenetic tree of nearly complete 18S rRNA gene sequences. The first piroplasmid clade designation is given as defined previously in Schnittger et al. (2012) [28, 31] whereas the second Roman number corresponds to a recently revised novel clade designation [2]. The GenBank accession number, host and country of origin are included for each sequence. Only bootstrap values > 70 are indicated next to branches. The scale-bar represents the evolutionary distance in the units of the number of nucleotide substitutions per site