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Bi-allelic SNP genotyping using the TaqMan® assay
1DuPont Pioneer, 1000, 7100 NW 62nd Ave, Johnston, IA, 50131-0184, USA, john.woodward@pioneer.com.
Methods in Molecular Biology (Clifton, N.J.)
|May 13, 2014
Summary
TaqMan technology offers a fast and reliable method for genotyping known genetic variations. This polymerase chain reaction (PCR)-based assay accurately determines alleles using fluorescently labeled probes.
Area of Science:
- Molecular Biology
- Genetics
- Biotechnology
Background:
- Genotyping known polymorphic sites is crucial in genetic research.
- Accurate and efficient genotyping methods are essential for various applications.
Purpose of the Study:
- To describe the mechanism of TaqMan technology for genotyping.
- To highlight the robustness and versatility of TaqMan assays.
Main Methods:
- Utilizes allele-specific probes and TaqMan technology.
- Employs PCR-based amplification with fluorescently labeled probes.
- Leverages the 5'-3' exonuclease activity of Taq polymerase for probe cleavage.
Main Results:
- TaqMan assays enable quick and reliable genotyping of known polymorphic sites.
- The technology is robust for various variant types including SNPs, indels, and presence/absence variants.
- Allele determination is achieved by measuring fluorophore emission intensity post-PCR.
Conclusions:
- TaqMan technology provides a dependable method for genotyping.
- The assay's design allows for precise allele discrimination.
- This technique is valuable for genetic analysis of known variants.
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