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Region 2 allele diversity in Sb-1P and Sb-1A phage plaques. (A) PCR products of region 2 from Sb-1P clones plated on MRSN8383. (B) PCR products of region 2 from Sb-1A clones plated on MRSN8383. (C) PCR products of region 2 from Sb-1A clones plated on MRSN9832. The control lanes (ctrl) contain the PCR product of region 2 of the Sb-1 production stock (Sb-1P) without any plaque/clone purification.
