Research Paper Volume 4, Issue 7 pp 509—520

Space/Population and Time/Age in DNA methylation variability in humans: a study on IGF2/H19 locus in different Italian populations and in mono- and di-zygotic twins of different age

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Figure 2. Methylation variation in cohort 1.

(A) Number of samples from different Italian districts and corresponding groups made for the statistical analysis. (B) Mean methylation levels of each CpGs unit in the 4 macroarea. (C) PC1 values plotted for each macro-area and the corresponding percentage of variance.