Minimum spanning tree based on MIRU-VNTR profiles of a set of 15 loci (424, 577, 580, 802, 960, 1644, 1955, 2163, 2165, 2401, 2996, 3192, 3690, 4052, and 4156) of M. tuberculosis clinical isolates bearing deletions RD115, RD122, RD 174, RD182, RD183, RD193, RD219 and RD726 (respectively indicated in different colours in the legend at the right side of the figure) and in isolates with no deletion (dark grey).