Figure 1

Clustering dendrogram of unrelated M. genitalium clinical strains based on genotype profiles at five genomic loci. The dendrogram was constructed using categorical coefficient and UPMGA clustering and included 30 strains from Scandinavian patients (SC) and 44 from New Orleans patients (NO). The genotypes at three PLP STR loci were determined by direct sequencing alone. For specimens containing mixed STR sequences, the genotypes are listed in the order from predominant to minor type. Only 4 sets of two patients had matching genotype profiles at all 5 loci (highlighted in grey shading). Note that three sets of two patients (nos. 58 and 14NO, 104F and 7NO, and 66NO and 199) and one set of three patients (nos. 27, 170 and 83F), which showed identical MG309-STR and MG191-SNP genotypes, could be distinguished by MG307-STRs, MG338-STRs or rRNA-SNPs.