Fig. 4
From: High genetic heterogeneity of Mycobacterium intracellulare isolated from respiratory specimens
Minimum spanning tree of 454 M. intracellulare strains. The genetic relationships between 39 isolates from Italy (this study), 226 from Japan [6, 10, 16], 115 from Korea [6, 17], 52 from China [13], 15 from United States [6] and 7 from The Netherlands [6] were visualized. Each circle represents a VNTR profile; size of circles is proportional to the number of isolates sharing the VNTR profile. The length of the lines connecting isolates are not proportional to the number of allelic variation between the isolates