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Annu Rev Med. 2008;59:113-29.

Array-based DNA diagnostics: let the revolution begin.

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  • 1Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas 77030, USA. abeaudet@bcm.tmc.edu


Advances in the fabrication of DNA microarrays as well as transformations in detection chemistries have vastly increased the throughput for genotyping, DNA sequencing, and array-based copy number analysis (ABCNA). Rapid changes in technology are not only affecting research but also revolutionizing DNA diagnostics. Here we focus on the application of high-throughput ABCNA and genotyping. Targeted and genome-wide ABCNA has led to the discovery of extensive DNA copy number variation in the population and the delineation of many previously unrecognized submicroscopic chromosomal aberrations (genomic disorders). High-throughput single-nucleotide polymorphism (SNP) genotyping is being widely applied in genome-wide association studies (GWASs) with recent successes in identification of common variants that confer risk for common adult diseases. Future applications of high-throughput genotyping and array-based DNA sequencing technology will undoubtedly involve research and diagnostic analyses of rare mutations and perhaps ultimately enable full individual genome sequencing.

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