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Single Droplet Digital Polymerase Chain Reaction for Comprehensive and Simultaneous Detection of Mutations in Hotspot Regions
Published on: September 25, 2018
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Penta-Primer Amplification Refractory Mutation System (PARMS) with Direct PCR-Based SNP Marker-Assisted Selection
1Gentides Biotech Co., Ltd., Wuhan, China.
Methods in Molecular Biology (Clifton, N.J.)
|February 13, 2023
Summary
The penta-primer amplification refractory mutation system (PARMS) offers a high-throughput, automated method for single-nucleotide polymorphism (SNP) genotyping. This assay system is cost-effective and compatible with standard lab equipment, streamlining molecular breeding processes.
Area of Science:
- Molecular Biology
- Genetics
- Biotechnology
Background:
- Single-nucleotide polymorphisms (SNPs) are crucial genetic markers for various applications, including crop improvement.
- Existing SNP genotyping methods can be costly, labor-intensive, and time-consuming, limiting their widespread adoption.
- There is a need for efficient, high-throughput, and cost-effective SNP genotyping systems in molecular breeding.
Purpose of the Study:
- To introduce and evaluate the penta-primer amplification refractory mutation system (PARMS) as a novel SNP genotyping assay.
- To demonstrate the system's suitability for direct PCR-based marker-assisted selection (D-MAS) in major crops.
- To highlight the system's efficiency in reducing manual operation time and costs in molecular breeding.
Main Methods:
- Utilized competitive allele-specific polymerase chain reaction (AS-PCR) combined with a homogeneous fluorescence-based reporting system.
- Employed PARMS for high-throughput, automated detection of genetic variation at SNPs.
- Integrated rapid DNA extraction using modified alkaline lysis with the PARMS assay for a direct SNP marker-assisted selection (D-MAS) system.
Main Results:
- PARMS demonstrated high-throughput, automated, and low-cost SNP genotyping capabilities.
- The system showed flexibility in analyzing varying numbers of SNPs and samples.
- Compatibility with various DNA sources and extraction methods, including alkaline lysis, was confirmed.
- The combined D-MAS and PARMS approach significantly reduced manual operation and analysis time.
Conclusions:
- PARMS is a versatile and efficient platform for SNP genotyping, suitable for diverse laboratory settings.
- The integration of PARMS with rapid DNA extraction offers a robust and cost-effective solution for molecular breeding.
- This automated system has the potential to accelerate genetic improvement in major crops through streamlined marker-assisted selection.

