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  • Title: FluoMEP: a new genotyping method combining the advantages of randomly amplified polymorphic DNA and amplified fragment length polymorphism.
    Author: Chang A, Liew WC, Chuah A, Lim Z, Lin Q, Orban L.
    Journal: Electrophoresis; 2007 Feb; 28(4):525-34. PubMed ID: 17304486.
    Abstract:
    PCR-based identification of differences between two unknown genomes often requires complex manipulation of the templates prior to amplification and/or gel electrophoretic separation of a large number of samples with manual methods. Here, we describe a new genotyping method, called fluorescent motif enhanced polymorphism (fluoMEP). The fluoMEP method is based on random amplified polymorphic DNA (RAPD) assay, but combines the advantages of the large collection of unlabelled 10mer primers (ca. 5000) from commercial sources and the power of the automated CE devices used for the detection of amplified fragment length polymorphism (AFLP) patterns. The link between these two components is provided by a fluorescently labeled "common primer" that is used in a two-primer PCR together with an unlabeled RAPD primer. By using the same "common primer" and a series of RAPD primers, DNA templates can be screened quickly and effectively for polymorphisms. Our manuscript describes the optimization of the method and its characterization on different templates. We demonstrate by using several different approaches that the addition of the "common primer" to the PCR changes the profile of amplified fragments, allowing for screening various parts of the genome with the same set of unlabeled primers. We also present an in silico analysis of the genomic localization of fragments amplified by a RAPD primer with two different "common primers" and alone.
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