Minimum evolution tree of the 16S rRNA gene sequences from the 76 strains of S. dysgalactiae from this study as well as 79 sequences from both subspecies of S. dysgalactiae extracted from the Ribosomal Database Project 10 (RDP10) database. Sequences from this study are shown as triangles: S. dysgalactiae subsp. equisimilis subcluster 1, gray; S. dysgalactiae subsp. equisimilis subcluster 2, purple; S. dysgalactiae subsp. dysgalactiae subcluster 1, blue; S. dysgalactiae subsp. dysgalactiae subcluster 2, turquoise. Sequences from GenBank assigned as S. dysgalactiae subsp. equisimilis are shown as green squares, while sequences assigned to S. dysgalactiae subsp. dysgalactiae are shown as red squares. Bootstrap values for major branches are shown.