title: Combining multiple PCR primer pairs for each amplicon can improve SNP genotyping accuracy by reducing allelic drop-out.
abstract: We have developed a systematic, single-tube assay approach to reduce the chance of SNP genotyping error due to otherwise unidentifiable allelic drop-out during PCR amplification. Allelic drop-out in such cases would normally be caused by additional and rare genetic variation within the PCR primer site sequence itself. Our method is novel in that it does not require prior knowledge of the additional "hidden" genetic variation. The method has been tested in multiplex using a microarray-based SNP genotyping chip and results in the rescue of previously reported false genotype calls.
authors.affiliation: The James Hogg iCAPTURE Centre for Cardiovascular and Pulmonary Research, University of British Columbia, St. Paul's Hospital, Vancouver, BC, Canada. stebbutt@mrl.ubc.ca
authors.forename: Scott J
authors.initials: SJ
authors.lastname: Tebbutt
authors.forename: Jian
authors.initials: J
authors.lastname: Ruan
mesh_terms: D001483:Base Sequence; D017931:DNA Primers; D014644:Genetic Variation; D005838:Genotype; D006801:Humans; D008969:Molecular Sequence Data; D016133:Polymerase Chain Reaction / Q000379:methods*; D020641:Polymorphism, Single Nucleotide; D017422:Sequence Analysis, DNA
chemical_list: D017931:DNA Primers