Evidence map›Paper›PMID 29259021›Full record

ArticleGenome research2018

Evolutionary expansion of DNA hypomethylation in the mammalian germline genome.

Jianghan Qu, Emily Hodges, Antoine Molaro, Pascal Gagneux, Matthew D Dean, Gregory J Hannon, Andrew D Smith

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in Genome research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
–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

25 citing papers in PubMed, 45 citations in OpenAlex.

  1. Towards molecular evolutionary epigenomics with an expanded nucleotide code involving methylated bases.DNA research : an international journal for rapid publication of reports on genes and genomes · 2025
    Article
  2. Article
  3. rDNA Copy Number Variation and Methylation in Human and Mouse Sperm.International journal of molecular sciences · 2025
    Article
  4. Article
  5. Article
  6. High prevalence of PRDM9-independent recombination hotspots in placental mammals.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. The epigenome of male germ cells and the programming of phenotypes in cattle.Animal frontiers : the review magazine of animal agriculture · 2021
    Article
  16. An Analysis of Methylome Evolution in Primates.Molecular biology and evolution · 2021
    Article
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 5 institutions in 2 countries.

Jianghan QuMolecular and Computational Biology Section, Division of Biological Sciences, University of Southern California, Los Angeles, California 90089, USA.
Emily HodgesDepartment of Biochemistry and Vanderbilt Genetics Institute, Vanderbilt University, Nashville, Tennessee 37232, USA.
Antoine MolaroWatson School of Biological Sciences, Cold Spring Harbor Laboratory, Cold Spring Harbor, New York 11724, USA.
Pascal GagneuxDivision of Comparative Pathology and Medicine, Department of Pathology, Glycobiology Research and Training Center, University of California San Diego, La Jolla, California 92093, USA.
Matthew D DeanMolecular and Computational Biology Section, Division of Biological Sciences, University of Southern California, Los Angeles, California 90089, USA.
Gregory J HannonWatson School of Biological Sciences, Cold Spring Harbor Laboratory, Cold Spring Harbor, New York 11724, USA.
Andrew D SmithMolecular and Computational Biology Section, Division of Biological Sciences, University of Southern California, Los Angeles, California 90089, USA.
University of Southern California · USCold Spring Harbor Laboratory · USHoward Hughes Medical Institute · USUniversity of California San Diego · USVanderbilt University · US

Funding

Analytic tools to examine high-resolution and genome-scale DNA methylation dataR01HG005238 · NHGRI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI SMITH, ANDREW DAVID · 2010 to 2013
$1.5M
Evolutionary and Functional Genetics of Male Reproduction using Wild Mice as a MoR01GM098536 · NIGMS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI DEAN, MATTHEW D · 2012 to 2016
$1.5M
Cancer Research UK 21143NHGRI NIH HHS R01 HG005238NIGMS NIH HHS R01 GM098536
6 · The paper itself

Abstract

DNA methylation in the germline is among the most important factors influencing the evolution of mammalian genomes. Yet little is known about its evolutionary rate or the fraction of the methylome that has undergone change. We compared whole-genome, single-CpG DNA methylation profiles in sperm of seven species-human, chimpanzee, gorilla, rhesus macaque, mouse, rat, and dog-to investigate epigenomic evolution. We developed a phylo-epigenetic model for DNA methylation that accommodates the correlation of states at neighboring sites and allows for inference of ancestral states. Applying this model to the sperm methylomes, we uncovered an overall evolutionary expansion of the hypomethylated fraction of the genome, driven both by the birth of new hypomethylated regions and by extensive widening of hypomethylated intervals in ancestral species. This expansion shows strong lineage-specific aspects, most notably that hypomethylated intervals around transcription start sites have evolved to be considerably wider in primates and dog than in rodents, whereas rodents show evidence of a greater trend toward birth of new hypomethylated regions. Lineage-specific hypomethylated regions are enriched near sets of genes with common developmental functions and significant overlap across lineages. Rodent-specific and primate-specific hypomethylated regions are enriched for binding sites of similar transcription factors, suggesting that the plasticity accommodated by certain regulatory factors is conserved, despite substantial change in the specific sites of regulation. Overall our results reveal substantial global epigenomic change in mammalian sperm methylomes and point to a divergence in

Indexed as

Epigenesis, GeneticEvolution, MolecularAnimalsCpG IslandsDNA MethylationGenomeGerm CellsGorilla gorillaHumansMacaca mulattaMammalsMicePan troglodytes

Identifiers

PMID29259021
PMCPMC5793779
OpenAlexW2779335077

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.