Evidence map›Paper›PMID 33462491›Full record

ArticleNature ecology & evolution2021

The emergence of the brain non-CpG methylation system in vertebrates.

Alex de Mendoza, Daniel Poppe, Sam Buckberry, Jahnvi Pflueger, Caroline B Albertin, Tasman Daish, Stephanie Bertrand, Elisa de la Calle-Mustienes, José Luis Gómez-Skarmeta, Joseph R Nery and 8 more

Open access · greenAbstract read
In one paragraph

Article in Nature ecology & evolution, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed, 2 pooled it
7.5field-weighted citation impact, top 2% of its field
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

66 citing papers in PubMed, 2 syntheses or guidelines pooled it, 120 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Epigenetic signatures of migratory orientation in a songbird hybrid zone.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2026
    Article
  5. The molecular evolution of vertebrate organs.Nature ecology & evolution · 2026
    Review
  6. Article
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  8. Article
  9. Article
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  11. Review
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  16. Article
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  18. Chromatin modifiers in neurodevelopment.Frontiers in molecular neuroscience · 2025
    Review
  19. Review
  20. Review

6 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

18 authors at 9 institutions in 6 countries.

Alex de MendozaAustralian Research Council Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, The University of Western Australia, Perth, Western Australia, Australia.ORCID http://orcid.org/0000-0002-6441-6529
Daniel PoppeAustralian Research Council Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, The University of Western Australia, Perth, Western Australia, Australia.ORCID http://orcid.org/0000-0002-6674-8420
Sam BuckberryAustralian Research Council Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, The University of Western Australia, Perth, Western Australia, Australia.ORCID http://orcid.org/0000-0003-2388-6046
Jahnvi PfluegerAustralian Research Council Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, The University of Western Australia, Perth, Western Australia, Australia.
Caroline B AlbertinEugene Bell Center for Regenerative Biology and Tissue Engineering, Marine Biological Laboratory, Woods Hole, MA, USA.
Tasman DaishSchool of Biological Sciences, University of Adelaide, Adelaide, South Australia, Australia.
Stephanie BertrandSorbonne Université, CNRS, Biologie Intégrative des Organismes Marins (BIOM), Observatoire Océanologique, Banyuls-sur-Mer, France.ORCID http://orcid.org/0000-0002-0689-0126
Elisa de la Calle-MustienesCentro Andaluz de Biología del Desarrollo (CABD), CSIC-Universidad Pablo de Olavide-Junta de Andalucía, Seville, Spain.
José Luis Gómez-SkarmetaCentro Andaluz de Biología del Desarrollo (CABD), CSIC-Universidad Pablo de Olavide-Junta de Andalucía, Seville, Spain.ORCID http://orcid.org/0000-0001-5125-4332
Joseph R NeryGenomic Analysis Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA.ORCID http://orcid.org/0000-0003-0153-5659
Joseph R EckerGenomic Analysis Laboratory, Salk Institute for Biological Studies, La Jolla, CA, USA.ORCID http://orcid.org/0000-0001-5799-5895
Boris BaerCenter for Integrative Bee Research, Department of Entomology, The University of California Riverside, Riverside, CA, USA.ORCID http://orcid.org/0000-0002-1136-5967
Clifton W RagsdaleDepartment of Neurobiology, University of Chicago, Chicago, IL, USA.
Frank GrütznerSchool of Biological Sciences, University of Adelaide, Adelaide, South Australia, Australia.
Hector EscrivaSorbonne Université, CNRS, Biologie Intégrative des Organismes Marins (BIOM), Observatoire Océanologique, Banyuls-sur-Mer, France.ORCID http://orcid.org/0000-0001-7577-5028
Byrappa VenkateshComparative Genomics Laboratory, Institute of Molecular and Cell Biology, A*STAR, Biopolis, Singapore, Singapore.ORCID http://orcid.org/0000-0003-3620-0277
Ozren BogdanovicAustralian Research Council Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, The University of Western Australia, Perth, Western Australia, Australia.ORCID http://orcid.org/0000-0001-5680-0056
Ryan ListerAustralian Research Council Centre of Excellence in Plant Energy Biology, School of Molecular Sciences, The University of Western Australia, Perth, Western Australia, Australia. ryan.lister@uwa.edu.au.ORCID http://orcid.org/0000-0001-6637-7239
Australian Research Council · AUCentre National de la Recherche Scientifique · FRCentro Andaluz de Biología del Desarrollo · ESSalk Institute for Biological Studies · USThe University of Adelaide · AUAgency for Science, Technology and Research · SGMarine Biological Laboratory · USUniversity of California, Riverside · USUniversity of Chicago · US

Funding

Viral Vector Core (VVC)P30CA014195 · NCI · SALK INSTITUTE FOR BIOLOGICAL STUDIES · PI Reuben Shaw · 1985 to 2026
$82.8M
European Research Council 740041Howard Hughes Medical InstituteNCI NIH HHS P30 CA014195
6 · The paper itself

Abstract

Mammalian brains feature exceptionally high levels of non-CpG DNA methylation alongside the canonical form of CpG methylation. Non-CpG methylation plays a critical regulatory role in cognitive function, which is mediated by the binding of MeCP2, the transcriptional regulator that when mutated causes Rett syndrome. However, it is unclear whether the non-CpG neural methylation system is restricted to mammalian species with complex cognitive abilities or has deeper evolutionary origins. To test this, we investigated brain DNA methylation across 12 distantly related animal lineages, revealing that non-CpG methylation is restricted to vertebrates. We discovered that in vertebrates, non-CpG methylation is enriched within a highly conserved set of developmental genes transcriptionally repressed in adult brains, indicating that it demarcates a deeply conserved regulatory program. We also found that the writer of non-CpG methylation, DNMT3A, and the reader, MeCP2, originated at the onset of vertebrates as a result of the ancestral vertebrate whole-genome duplication. Together, we demonstrate how this novel layer of epigenetic information assembled at the root of vertebrates and gained new regulatory roles independent of the ancestral form of the canonical CpG methylation. This suggests that the emergence of non-CpG methylation may have fostered the evolution of sophisticated cognitive abilities found in the vertebrate lineage.

Indexed as

DNA MethylationMethyl-CpG-Binding Protein 2AnimalsBrainGenomeVertebratesMethyl-CpG-Binding Protein 2

Identifiers

PMID33462491
PMCPMC7116863
OpenAlexW3121787444

What OpenQuestion holds

Textmetadata
LicenceTDM
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.