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PCR products amplified by each of the primers set designed to determine the organization of the trh-ureR-nik-ure region in each trh+ isolate. The fragments of 500, 1000 and 1500 bp are indicated. The name of each gene target is indicated at the top of each lane. Ld—GeneRuler™ 100 bp Plus DNA Ladder (Fermentas).
