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Amplicons of entire or partial porB1A and porB1B genes. Note: Lane M: DNA marker (BioColor); Lanes 1 and 2: amplicons of entire porB1A gene (981 bp) and porB1B gene (1044 bp), respectively; Lanes 3 and 4: amplicons of partial porB1A gene (520 bp) and partial porB1B gene (583 bp and 201 bp) by duplex PCR, respectively; Lane 5: blank control.
