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Whole genome bisulfite sequencing and Infinium Mouse Methylation BeadChip using fresh and fresh-frozen mouse epidermis (WGBS)

ABSTRACT: Whole genome bisulfite sequencing and Infinium Mouse Methylation BeadChip using fresh and fresh-frozen mouse epidermis (WGBS)

PROVIDER: PRJNA882378 | ENA |

REPOSITORIES: ENA

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Whole genome bisulfite sequencing and Infinium Mouse Methylation BeadChip using fresh and fresh-frozen mouse epidermis (WGBS)

Project description:We compared the global DNA methylation levels of hairless mouse epidermis using the Infinium Mouse Methylation BeadChip from Illumina and whole genome bisulfite sequencing (WGBS). We also studied the effect of sample storage conditions by using fresh and fresh-frozen epidermis. The DNA methylation levels of xxx,xxx CpG sites covered by both the BeadChip and WGBS were compared. DNA methylation levels obtained with WGBS and the BeadChip were strongly correlated (Pearson correlation r = 0.984). We applied a threshold of 15 reads for the WGBS methylation analysis. Even at a threshold of 10 reads, we observed no substantial difference in DNA methylation levels compared with that obtained with the BeadChip. The DNA methylation levels from the fresh and the fresh-frozen samples were strongly correlated when analysed with both the BeadChip (r = 0.996) and WGBS (r = 0.994). We conclude that the two methods of analysis generally work equally well for studies of DNA methylation of mouse epidermis and find that fresh and fresh-frozen epidermis can generally be used equally well. The choice of method will depend on the specific study’s aims and the available resources in the laboratory.

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Comparison of global DNA methylation analysis by whole genome bisulfite sequencing and the Infinium Mouse Methylation BeadChip using fresh and fresh-frozen mouse epidermis

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