Minimum spanning tree (MST) showing the genotypic relationship between the azole-resistant and azole-susceptible <i>A</i>. <i>fumigatus</i> isolates.

<p>Each circle corresponds to a unique genotype, and the size of the circle proportionally represents the number of isolates with that genotype (1 to 21). Connecting lines correspond to the number of differences between the genotypes. Short bold line, 1 difference; black line, 2 differences; long grey line, 3 differences; dotted line, 4 or more differences. Grey circles, azole resistant TR₃₄/L98H, (n = 27); black circles, azole resistant non TR₃₄/L98H, (n = 22); white circles, azole susceptible strains, (n = 126). Four clusters were found (A-D).