( Modern technologies d...)Amplification of genome-representative DNA from limited sources with GenomePlex WGA technology for use in genetic alterations studies

Modern technologies developed in recent years have prompted new and exciting approaches to support biomedical research. The ability to study the entire human genome using limited sources of genomic material to detect genetic disordersmade possible through Sigma-Aldrich Biotechnologys GenomePlex whole-genome amplification (WGA) systemis a notable achievement.

The development of high-throughput genomics and DNA sequencing has provided researchers the ability to obtain complete and exact DNA sequences of many genomes. Functional genomics researchers use sequencing as an analysis tool for genotyping and microarray-based technologies. These techniques, however, require sufficient amounts of DNA that in some cases may not be available. WGA technology provides the ability to generate adequate amounts of genome-derived DNA to study genetic alterations and their relationship to human diseases. It has become a useful tool for many biomedical applications, such as microsatellite analysis, single nucleotide polymorphism (SNP) detection, comparative genomic hybridization (CGH) microarrays and others.

GenomePlex WGA kit overview
The GenomePlex WGA technology provides a simple and accurate method for amplifying nanogram quantities of starting material from any source, resulting in microgram amounts of DNA with no detectable allele bias. The GenomePlex WGA technology is time-efficient, allowing the researchers to amplify DNA in less than three hours. The technology is based on random chemical fragmentation of the genome, producing a series of overlapping short templates ranging in the size from 200 to 1,500 base pairs and averaging 400 base pairs.

The resulting DNA fragments are efficiently primed to generate a library of DNA fragments with defined 3' and 5' terminithe OmniPlex library. This library is replicated using linear amplification in the initial stages, follow
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