Pulsed-field gel electropherograms of digested genomic DNAs of T. primitia strains ZAS-1 and ZAS-2, T. azotonutricium ZAS-9, and S. aurantia J1 (Sa). Restriction enzymes used for digestion were as follows: XbaI (lanes 1 and 4), PmeI (lanes 2 and 7), SwaI (lane 3), AseI (lane 5), and SspI (lane 6).