Fig. 2.
Minimum spanning trees based on 15-MIRU-VNTR genotyping of (a) 163 Mtb strains of Beijing genotype in Funing, and (b) Mtb isolates from Funing, Shanghai, Taiwan and Japan. Each circle indicates a different MIRU-VNTR genotype, with the size of the circle indicating the quantity of the isolate. Heavy lines connecting two MIRU-VNTR types denote single-locus variants; thin lines denote double-locus variants; dashed lines indicate triple-locus variants; and dotted lines indicate variants at more than three loci. The coloured symbols in (a) denote different sequence types of Mtb isolates, whereas the coloured symbols in (b) denote Mtb isolates from Funing, Shanghai, Taiwan and Japan.
