New Take on RADseq Enables High-Throughput Variant Discovery

16 Sept 2013

This case study demonstrates how a new, massively parallel genotyping technique from a research team at Harvard relies on automated size selection and next-generation sequencing to boost accuracy and lower costs.

Pippin Prep DNA Size Selection System

Sage Science

The Pippin Prep is a preparative electrophoresis platform for collection of size-selected DNA samples. The system automates DNA size selection using disposable, pre-cast agarose cassettes to extract fractions according to user-defined software input. Samples are electro-eluted from agarose and collected in buffer. The platform is used for the construction of next-gen sequencing libraries. The system collects fragments (depending on gel type) between 90 bp- 8kb. A higher quality of sample can be extracted, more reproducibly and with no cross-contamination, when compared to manual gel purification methods.

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Genome AnalysisGenomics, the study of genomes, includes functional genomics, evolutionary genomics and comparative genomics. There are many genomic technologies such as DNA sequencing of whole genomes, computational biology and bioinformatics. DNA and nucleic acids must be isolated and concentrated from cells for analysis with kits, automated analyzers and software. Other useful technologies for studying genomics include PCR, microarrays and electrophoresis.DNA SequencingDNA sequencing, such as sanger sequencing, is a biological technique that determines the precise order of nucleotide bases in a fragment or template of DNA. DNA sequencers and genetic analyzers are based on capillary electrophoresis, where labeled DNA fragments are electrophoretically separated by size as they migrate through a polymer. Find the best DNA sequencing products, including DNA sequencing kits, genomic libraries and genetic identity kits in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Next Generation SequencingNext-generation sequencing (NGS), also known as whole-genome sequencing, high-throughput sequencing and massive parallel sequencing, produces and analyses thousands to millions of nucleotide sequences at once. Sequencing systems operate via varying technologies depending on the manufacturer, including sequencing by synthesis, ligation, pyrosequencing, ion semiconductor and single-molecule real-time sequencing. For NGS, library preparation is paramount to successful sequencing. In this section, explore a range of library preparation kits, from targeted, amplicon-based or hybridization-based kits including epigenomic, transcriptomic and genomic workflows to fragmentation kits. Find the best next-generation sequencing products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.DNA Fragment SizingGenetic VariationSize Selection