Evidence map›Paper›PMID 30616649›Full record

ArticleEpigenetics & chromatin2019

Dnmt1 is essential for egg production and embryo viability in the large milkweed bug, Oncopeltus fasciatus.

Adam J Bewick, Zachary Sanchez, Elizabeth C Mckinney, Allen J Moore, Patricia J Moore, Robert J Schmitz

Open access · goldAbstract read
In one paragraph

Article in Epigenetics & chromatin, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
22.5field-weighted citation impact, top 1% 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

48 citing papers in PubMed, 111 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Why just fly?Fly · 2025
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
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

6 authors at 1 institution in 1 country.

Adam J BewickDepartment of Genetics, University of Georgia, Athens, GA, 30602, USA.
Zachary SanchezDepartment of Entomology, University of Georgia, Athens, GA, 30602, USA.
Elizabeth C MckinneyDepartment of Entomology, University of Georgia, Athens, GA, 30602, USA.
Allen J MooreDepartment of Entomology, University of Georgia, Athens, GA, 30602, USA.
Patricia J MooreDepartment of Entomology, University of Georgia, Athens, GA, 30602, USA. pjmoore@uga.edu.
Robert J SchmitzDepartment of Genetics, University of Georgia, Athens, GA, 30602, USA. schmitz@uga.edu.
University of Georgia · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe function of cytosine (DNA) methylation in insects remains inconclusive due to a lack of mutant and/or genetic studies.

resultsHere, we provide evidence for the functional role of the maintenance DNA methyltransferase 1 (Dnmt1) in an insect using experimental manipulation. Through RNA interference (RNAi), we successfully posttranscriptionally knocked down Dnmt1 in ovarian tissue of the hemipteran Oncopeltus fasciatus (the large milkweed bug). Individuals depleted for Dnmt1, and subsequently DNA methylation, failed to reproduce. Eggs were inviable and declined in number, and nuclei structure of follicular epithelium was aberrant. Erasure of DNA methylation from gene or transposon element bodies did not reveal a direct causal link to steady-state mRNA levels in somatic cells. These results reveal an important function of Dnmt1 seemingly not contingent on directly controlling gene expression.

conclusionsThis study provides direct experimental evidence for a functional role of Dnmt1 in egg production and embryo viability and uncovers a trivial role, if any, for DNA methylation in control of gene expression in O. fasciatus.

Indexed as

AnimalsDNA (Cytosine-5-)-Methyltransferase 1DNA MethylationEmbryonic DevelopmentFemaleHemipteraInsect ProteinsMaleOviparityDNA (Cytosine-5-)-Methyltransferase 1Insect ProteinsDNA methylationDnmt1ReproductionRNAiTranscription

Identifiers

PMID30616649
PMCPMC6322253
OpenAlexW2908439016

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.