Successful use of whole genome amplified DNA from multiple source types for high-density Illumina SNP microarrays
oleh: Casey L. Dagnall, Lindsay M. Morton, Belynda D. Hicks, Shengchao Li, Weiyin Zhou, Eric Karlins, Kedest Teshome, Salma Chowdhury, Kerrie S. Lashley, Joshua N. Sampson, Leslie L. Robison, Gregory T. Armstrong, Smita Bhatia, Gretchen A. Radloff, Stella M. Davies, Margaret A. Tucker, Meredith Yeager, Stephen J. Chanock
| Format: | Article |
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| Diterbitkan: | BMC 2018-03-01 |
Deskripsi
Abstract Background The recommended genomic DNA input requirements for whole genome single nucleotide polymorphism microarrays can limit the scope of molecular epidemiological studies. We performed a large-scale evaluation of whole genome amplified DNA as input into high-density, whole-genome Illumina® Infinium® SNP microarray. Results Overall, 6622 DNA samples from 5970 individuals were obtained from three distinct biospecimen sources and genotyped using gDNA and/or wgaDNA inputs. When genotypes from the same individual were compared with standard, native gDNA input amount, we observed 99.94% mean concordance with wgaDNA input. Conclusions Our results demonstrate that carefully conducted studies with wgaDNA inputs can yield high-quality genotyping results. These findings should enable investigators to consider expansion of ongoing studies using high-density SNP microarrays, currently challenged by small amounts of available DNA.