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EcoRV restriction patterns of Salmonella enteritidis plasmids. Lanes 2 to 10, PV1 to PV9 of the 60-kb plasmid; lanes 12 to 14, PV10 to PV12 of the 78-kb plasmid; lanes 1, 11, and 15, HindIII digest of λ DNA (Gibco BRL) as molecular size marker.
