FIG. 1.

Spoligotype phylogeny of M. bovis strains. The figure depicts relationships across the M. bovis strains used in this study based solely on spoligotype. Strain numbers are shown clustered into their spoligotype designations (“SB” numbers, based on the international M. bovis spoligotype database at www.mbovis.org). SB0120 is the most replete M. bovis spoligotype pattern, with all other patterns used in this study derivatives of this pattern. Branch lengths are not phylogenetically informative and are shown merely for the purposes of clustering related strains.