Fig. 2From: Development of DNA-based species-specific real-time PCR markers for four berry fruits and their application in commercial berry fruit foodsa PCR products (30 cycles) of each species-specific primer sets were electrophoresed to confirm cross-reactivity, b melt peak analysis to confirm amplification of a single PCR amplicon. M, 1 kb Plus DNA ladder marker; Lane 1, aronia; Lane 2, blackberry; Lane 3, cranberry; Lane 4, strawberryBack to article page