Evidence map›Paper›PMID 36862744›Full record

ArticlePLoS genetics2023

Fluctuations in chromatin state at regulatory loci occur spontaneously under relaxed selection and are associated with epigenetically inherited variation in C. elegans gene expression.

Rachel Wilson, Maxime Le Bourgeois, Marcos Perez, Peter Sarkies

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Article in PLoS genetics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed.

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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

4 authors.

Rachel WilsonMRC London Institute of Medical Sciences, London, United Kingdom.ORCID 0000-0002-0837-8695
Maxime Le BourgeoisDepartment of Biochemistry, University of Oxford, Oxford, United Kingdom.ORCID 0000-0002-5003-9478
Marcos PerezDepartment of Biochemistry, University of Oxford, Oxford, United Kingdom.ORCID 0000-0001-5277-1550
Peter SarkiesDepartment of Biochemistry, University of Oxford, Oxford, United Kingdom.ORCID 0000-0003-0279-6199

Funding

Medical Research Council
6 · The paper itself

Abstract

Some epigenetic information can be transmitted between generations without changes in the underlying DNA sequence. Changes in epigenetic regulators, termed epimutations, can occur spontaneously and be propagated in populations in a manner reminiscent of DNA mutations. Small RNA-based epimutations occur in C. elegans and persist for around 3-5 generations on average. Here, we explored whether chromatin states also undergo spontaneous change and whether this could be a potential alternative mechanism for transgenerational inheritance of gene expression changes. We compared the chromatin and gene expression profiles at matched time points from three independent lineages of C. elegans propagated at minimal population size. Spontaneous changes in chromatin occurred in around 1% of regulatory regions each generation. Some were heritable epimutations and were significantly enriched for heritable changes in expression of nearby protein-coding genes. Most chromatin-based epimutations were short-lived but a subset had longer duration. Genes subject to long-lived epimutations were enriched for multiple components of xenobiotic response pathways. This points to a possible role for epimutations in adaptation to environmental stressors.

Indexed as

ChromatinEpigenesis, GeneticAnimalsCaenorhabditis elegansDNA MethylationGene ExpressionChromatin

Identifiers

PMID36862744
PMCPMC10013927

What OpenQuestion holds

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LicenceCC BY
reference markers read1
measurements read135
identifiers read15
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.