DNA methylation networks underlying mammalian traits

Amin Haghani*, Caesar Z. Li, Todd R. Robeck, Joshua Zhang, Ake T Lu, Gareth Jones, et al

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

54 Citations (Scopus)

Abstract

DNA methylation installs a methyl group to cytosine, placing an epigenetic mark that regulates gene expression. Comparative epigenomics combines epigenetic signatures with phylogenetic relationships to understand species characteristics. Haghani et al. evaluated methylation levels in highly conserved DNA sequences, profiling ~15,000 samples across 348 mammalian species (see the Perspective by de Mendoza). Phylogenetic trees suggest that the divergence of DNA methylation profiles closely mirrors genetic evolution. Species with longer maximum life spans have developed tidier methylation patterns within the genome, characterized by unique peaks and troughs of methylation. Methylation patterns associated with maximum life spans generally differ from those connected to age or interventions that affect mortality risk in mice. These data provide a rich resource of information for fields including evolutionary biology and longevity research. —Di Jiang
Original languageEnglish
Article numbereabq5693
Number of pages16
JournalScience
Volume381
Issue number6658
DOIs
Publication statusPublished - 11 Aug 2023

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