Phylogenetic tree based on the GlpO amino acid sequences of “M. mycoides cluster” members. The GlpO sequence of M. feriruminatoris was used as an outgroup. Bootstrap values are displayed. Mcc: Mycoplasma capricolum subsp. capricolum; Mccp: Mycoplasma capricolum subsp. capripneumoniae, Mmc: Mycoplasma mycoides subsp. capri; Mmm: Mycoplasma mycoides subsp. mycoides.