FIGURE 2.

Graphic representation of a likely emm-switch event observed between two phylogenetically closely related isolates. The ST20 profile is usually associated with the stG62647 emm gene, but here the SD_NORM120 isolate harbors the stG2574 emm gene. The iSDSE_NORM7 strain was the closest relative in the single-nucleotide polymorphism (SNP)-analysis, and was chosen for comparison. The alignment was performed using Geneious. The emm gene in each Streptococcus dysgalactiae subspecies equisimilis (SDSE) isolate is highlighted in red. The gray shaded areas indicate 100% homology, and blue lines in the alignment indicate single nucleotide polymorphisms. The scale indicates number of base pairs.