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Polymerase Chain Reaction-Restriction Fragment Length Polymorphism Analysis of a Short Fragment of the Cytochrome b Gene for Identification of Flatfish Species

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Restriction site analysis of polymerase chain reaction (PCR) products from a conserved region of the cytochrome b gene has been used for the specific identification of sole (Solea solea), European plaice (Pleuronectes platessa), flounder (Platichthys fiesus), and Greenland halibut (Reinhardtius hippoglossoides). PCR amplification of the cytochrome b gene using a universal primer together with a primer specifically designed as a part of this study produced a 201-bp fragment in all species analyzed. Digestions of the PCR products with Sau3Al, BsmAl, Rsal, and Mn/l endonucleases, followed by agarose gel electrophoresis of the digested PCR products, yielded specific profiles that enabled direct identification of each species analyzed.

Document Type: Research Article

Affiliations: Departamento de Nutrición y Bromatología III (Higiene y Tecnología de los Alimentos), Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain

Publication date: December 1, 1998

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