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Molecular genetic analysis of isolated single cells and other minute DNA samples is limited because there is insufficient DNA to perform more than one independent PCR amplification. One solution to this problem is to first amplify the entire genome, thus providing enough DNA for numerous subsequent PCRs. In this study we have investigated four different methods of whole genome amplification performed on single cells, and have identified a protocol that generates sufficient quantities of DNA for comparative genomic hybridisation (CGH) as well as more than 90 independent amplification reactions. Thus, numerous specific loci and the copy number of every chromosome can be assessed in a single cell. We report here the first reliable application of CGH to single cells from human preimplantation embryos (blastomeres) and to single fibroblasts, buccal cells and amniocytes.

Original publication

DOI

10.1093/nar/27.4.1214

Type

Journal article

Journal

Nucleic Acids Res

Publication Date

15/02/1999

Volume

27

Pages

1214 - 1218

Keywords

Humans, Nucleic Acid Amplification Techniques, Nucleic Acid Hybridization