Evidence map›Paper›PMID 21245904›Full record

ArticlePLoS biology2011

Epigenetic regulation of learning and memory by Drosophila EHMT/G9a.

Jamie M Kramer, Korinna Kochinke, Merel A W Oortveld, Hendrik Marks, Daniela Kramer, Eiko K de Jong, Zoltan Asztalos, J Timothy Westwood, Hendrik G Stunnenberg, Marla B Sokolowski and 4 more

Open access · goldAbstract read
In one paragraph

Article in PLoS biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 100 papers.

0numbers the graph read from it
0cells of the map it votes in
100citing papers in PubMed
7.2field-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

100 citing papers in PubMed, 213 citations in OpenAlex.

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  8. SetDB1 and Su(var)3-9 are essential for late stages of larval development of Drosophila melanogaster.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2023
    Article
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  14. Biomedicines · 2022
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40 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

14 authors at 5 institutions in 5 countries.

Jamie M KramerDepartment of Human Genetics, Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.
Korinna Kochinke
Merel A W Oortveld
Hendrik Marks
Daniela Kramer
Eiko K de Jong
Zoltan Asztalos
J Timothy Westwood
Hendrik G Stunnenberg
Marla B Sokolowski
Krystyna Keleman
Huiqing Zhou
Hans van Bokhoven
Annette Schenck
Radboud University Nijmegen · NLRadboud University Medical Center · NLUniversity of Toronto · CAResearch Institute of Molecular Pathology · ATUniversity of Cambridge · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The epigenetic modification of chromatin structure and its effect on complex neuronal processes like learning and memory is an emerging field in neuroscience. However, little is known about the "writers" of the neuronal epigenome and how they lay down the basis for proper cognition. Here, we have dissected the neuronal function of the Drosophila euchromatin histone methyltransferase (EHMT), a member of a conserved protein family that methylates histone 3 at lysine 9 (H3K9). EHMT is widely expressed in the nervous system and other tissues, yet EHMT mutant flies are viable. Neurodevelopmental and behavioral analyses identified EHMT as a regulator of peripheral dendrite development, larval locomotor behavior, non-associative learning, and courtship memory. The requirement for EHMT in memory was mapped to 7B-Gal4 positive cells, which are, in adult brains, predominantly mushroom body neurons. Moreover, memory was restored by EHMT re-expression during adulthood, indicating that cognitive defects are reversible in EHMT mutants. To uncover the underlying molecular mechanisms, we generated genome-wide H3K9 dimethylation profiles by ChIP-seq. Loss of H3K9 dimethylation in EHMT mutants occurs at 5% of the euchromatic genome and is enriched at the 5' and 3' ends of distinct classes of genes that control neuronal and behavioral processes that are corrupted in EHMT mutants. Our study identifies Drosophila EHMT as a key regulator of cognition that orchestrates an epigenetic program featuring classic learning and memory genes. Our findings are relevant to the pathophysiological mechanisms underlying Kleefstra Syndrome, a severe form of intellectual disability caused by mutations in human EHMT1, and have potential therapeutic implications. Our work thus provides novel insights into the epigenetic control of cognition in health and disease.

Indexed as

Epigenesis, GeneticAnimalsCourtshipDendritesDNADrosophilaEuchromatinGene Expression ProfilingHistone-Lysine N-MethyltransferaseHumansLarvaLearningLocomotionMemoryMethylationNervous SystemDNAEuchromatinHistone-Lysine N-Methyltransferase

Identifiers

PMID21245904
PMCPMC3014924
OpenAlexW2075764106

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.