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DNA Methylation variability among individuals is related to CpGs cluster density and evolutionary signatures

机译:个体之间的DNA甲基化变异性与CpGs簇密度和进化特征有关

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In recent years, epigenetics has gained a central role in the understanding of the process of natural selection. It is now clear how environmental impacts on the methylome could promote methylation variability with direct effects on disease etiology as well as phenotypic and genotypic variations in evolutionary processes. To identify possible factors influencing inter-individual methylation variability, we studied methylation values standard deviation of 166 healthy individuals searching for possible associations with genomic features and evolutionary signatures. We analyzed methylation variability values in relation to CpG cluster density and we found a strong association between them (p-value
机译:近年来,表观遗传学已在理解自然选择过程中发挥了核心作用。现在清楚的是,对甲基化组的环境影响如何促进甲基化变异性,从而直接影响疾病病因以及进化过程中的表型和基因型变异。为了确定影响个体间甲基化变异性的可能因素,我们研究了166名健康个体的甲基化值标准差,以寻找与基因组特征和进化特征的可能关联。我们分析了与CpG簇密度有关的甲基化变异性值,发现它们之间有很强的联系(p值<?2.2?×?10?16 16)。此外,我们发现与CpGs相关的具有高甲基化变异性值的基因丰富了免疫途径。相反,与低细胞相关的那些被丰富了与基本细胞功能有关的途径。最后,我们发现甲基化变异性值与古代(p值<?2.2?×?10?16 16)和最近的选择性压力(p值<?1?×?10?4)的信号之间存在关联。我们的结果表明,人类遗传学,表观遗传密码和进化限制之间存在复杂的相互作用。

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