PMID- 38007590 OWN - NLM STAT- MEDLINE DCOM- 20231127 LR - 20231129 IS - 2041-1723 (Electronic) IS - 2041-1723 (Linking) VI - 14 IP - 1 DP - 2023 Nov 25 TI - The rate of epigenetic drift scales with maximum lifespan across mammals. PG - 7731 LID - 10.1038/s41467-023-43417-6 [doi] LID - 7731 AB - Epigenetic drift or "disorder" increases across the mouse lifespan and is suggested to underlie epigenetic clock signals. While the role of epigenetic drift in determining maximum lifespan across species has been debated, robust tests of this hypothesis are lacking. Here, we test if epigenetic disorder at various levels of genomic resolution explains maximum lifespan across four mammal species. We show that epigenetic disorder increases with age in all species and at all levels of genomic resolution tested. The rate of disorder accumulation occurs faster in shorter lived species and corresponds to species adjusted maximum lifespan. While the density of cytosine-phosphate-guanine dinucleotides ("CpGs") is negatively associated with the rate of age-associated disorder accumulation, it does not fully explain differences across species. Our findings support the hypothesis that the rate of epigenetic drift explains maximum lifespan and provide partial support for the hypothesis that CpG density buffers against epigenetic drift. CI - (c) 2023. The Author(s). FAU - Bertucci-Richter, Emily M AU - Bertucci-Richter EM AUID- ORCID: 0000-0002-8348-0024 AD - Savannah River Ecology Laboratory, University of Georgia, Aiken, SC, 29802, USA. AD - Eugene P. Odum School of Ecology, University of Georgia, Athens, GA, 30602, USA. FAU - Parrott, Benjamin B AU - Parrott BB AUID- ORCID: 0000-0002-2391-2470 AD - Savannah River Ecology Laboratory, University of Georgia, Aiken, SC, 29802, USA. benparrott@srel.uga.edu. AD - Eugene P. Odum School of Ecology, University of Georgia, Athens, GA, 30602, USA. benparrott@srel.uga.edu. LA - eng GR - R56 AG078336/AG/NIA NIH HHS/United States PT - Journal Article DEP - 20231125 PL - England TA - Nat Commun JT - Nature communications JID - 101528555 SB - IM MH - Animals MH - Mice MH - *Longevity/genetics MH - *Epigenesis, Genetic MH - DNA Methylation/genetics MH - CpG Islands/genetics MH - Mammals/genetics MH - Aging/genetics PMC - PMC10676422 COIS- The authors declare no competing interests. EDAT- 2023/11/26 07:44 MHDA- 2023/11/27 18:42 PMCR- 2023/11/25 CRDT- 2023/11/25 23:38 PHST- 2023/09/15 00:00 [received] PHST- 2023/11/09 00:00 [accepted] PHST- 2023/11/27 18:42 [medline] PHST- 2023/11/26 07:44 [pubmed] PHST- 2023/11/25 23:38 [entrez] PHST- 2023/11/25 00:00 [pmc-release] AID - 10.1038/s41467-023-43417-6 [pii] AID - 43417 [pii] AID - 10.1038/s41467-023-43417-6 [doi] PST - epublish SO - Nat Commun. 2023 Nov 25;14(1):7731. doi: 10.1038/s41467-023-43417-6.