Evidence map›Paper›PMID 24299735›Full record

ArticleGenome research2014

Genome-wide nucleosome map and cytosine methylation levels of an ancient human genome.

Jakob Skou Pedersen, Eivind Valen, Amhed M Vargas Velazquez, Brian J Parker, Morten Rasmussen, Stinus Lindgreen, Berit Lilje, Desmond J Tobin, Theresa K Kelly, Søren Vang and 11 more

Open access · bronzeAbstract read
In one paragraph

Article in Genome research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

67 citing papers in PubMed, 1 synthesis or guideline pooled it, 184 citations in OpenAlex.

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  13. Unravelling reference bias in ancient DNA datasets.Bioinformatics (Oxford, England) · 2024
    Article
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  17. Article
  18. Review
  19. Article
  20. Article

7 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

21 authors at 6 institutions in 5 countries.

Jakob Skou PedersenDepartment of Molecular Medicine (MOMA), Aarhus University Hospital, Skejby, DK-8200 Aarhus N, Denmark;
Eivind Valen
Amhed M Vargas Velazquez
Brian J Parker
Morten Rasmussen
Stinus Lindgreen
Berit Lilje
Desmond J Tobin
Theresa K Kelly
Søren Vang
Robin Andersson
Peter A Jones
Cindi A Hoover
Alexei Tikhonov
Egor Prokhortchouk
Edward M Rubin
Albin Sandelin
M Thomas P Gilbert
Anders Krogh
Eske Willerslev
Ludovic Orlando
University of Copenhagen · DKAarhus University Hospital · DKJoint Genome Institute · USRussian Academy of Sciences · RUUniversity of Southern California · USUniversity of Bradford · GB

Funding

MECHANISMS OF DE NOVO METHYLATION IN CANCERR01CA082422 · NCI · VAN ANDEL RESEARCH INSTITUTE · PI JONES, PETER A · 1999 to 2016
$5.1M
NCI NIH HHS R01 CA082422
6 · The paper itself

Abstract

Epigenetic information is available from contemporary organisms, but is difficult to track back in evolutionary time. Here, we show that genome-wide epigenetic information can be gathered directly from next-generation sequence reads of DNA isolated from ancient remains. Using the genome sequence data generated from hair shafts of a 4000-yr-old Paleo-Eskimo belonging to the Saqqaq culture, we generate the first ancient nucleosome map coupled with a genome-wide survey of cytosine methylation levels. The validity of both nucleosome map and methylation levels were confirmed by the recovery of the expected signals at promoter regions, exon/intron boundaries, and CTCF sites. The top-scoring nucleosome calls revealed distinct DNA positioning biases, attesting to nucleotide-level accuracy. The ancient methylation levels exhibited high conservation over time, clustering closely with modern hair tissues. Using ancient methylation information, we estimated the age at death of the Saqqaq individual and illustrate how epigenetic information can be used to infer ancient gene expression. Similar epigenetic signatures were found in other fossil material, such as 110,000- to 130,000-yr-old bones, supporting the contention that ancient epigenomic information can be reconstructed from a deep past. Our findings lay the foundation for extracting epigenomic information from ancient samples, allowing shifts in epialleles to be tracked through evolutionary time, as well as providing an original window into modern epigenomics.

Indexed as

DNA MethylationGenome, HumanAnimalsChromosome MappingCytosineEpigenesis, GeneticEpigenomicsEvolution, MolecularGene ExpressionGene Expression RegulationHumansInuitNucleosomesPhylogenyPromoter Regions, GeneticSequence Analysis, DNACytosineNucleosomes

Identifiers

PMID24299735
PMCPMC3941110
OpenAlexW2103163845

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.