Evidence map›Paper›PMID 9620857›Full record

ArticleGenes & development1998

The DNA methylation locus DDM1 is required for maintenance of gene silencing in Arabidopsis.

J A Jeddeloh, J Bender, E J Richards

Open access · diamondAbstract read
In one paragraph

Article in Genes & development, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 98 papers.

0numbers the graph read from it
0cells of the map it votes in
98citing 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

98 citing papers in PubMed, 230 citations in OpenAlex.

  1. Article
  2. Review
  3. Using targeted genome methylation for crop improvement.Journal of experimental botany · 2025
    Review
  4. Article
  5. Review
  6. Molecular mechanisms and regulation of recombination frequency and distribution in plants.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024
    Review
  7. The plant siRNA landscape.The Plant cell · 2024
    Review
  8. Article
  9. Article
  10. Article
  11. Exploring impact of recombination landscapes on breeding outcomes.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Review
  12. Review
  13. DDM1-Mediated TE Silencing in Plants.Plants (Basel, Switzerland) · 2023
    Review
  14. Article
  15. Review
  16. The role of ATXR6 expression in modulating genome stability and transposable element repression inProceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  17. Article
  18. Transposons Hidden inPlants (Basel, Switzerland) · 2021
    Article
  19. Article
  20. Review

38 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

3 authors at 1 institution in 1 country.

J A JeddelohWashington University, Department of Biology, St. Louis, Missouri 63130 USA.
J Bender
E J Richards
Washington University in St. Louis · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To investigate the relationship between cytosine methylation and gene silencing in Arabidopsis, we constructed strains containing the ddm1 hypomethylation mutation and a methylated and silenced PAI2 tryptophan biosynthetic gene (MePAI2) that results in a blue fluorescent plant phenotype. The ddm1 mutation had both an immediate and a progressive effect on PAI gene silencing. In the first generation, homozygous ddm1 MePAI2 plants displayed a weakly fluorescent phenotype, in contrast to the strongly fluorescent phenotype of the DDM1 MePAI2 parent. After two generations of inbreeding by self-pollination, the ddm1/ddm1 lines became nonfluorescent. The progressive loss of fluorescence correlated with a progressive loss of methylation from the PAI2 gene. These results indicate that methylation is necessary for maintenance of PAI gene silencing and that intermediate levels of DNA methylation are associated with intermediate gene silencing. The results also support our earlier hypothesis that ddm1 homozygotes act as "epigenetic mutators" by accumulating heritable changes in DNA methylation that can lead to changes in gene expression.

Indexed as

Gene Expression Regulation, PlantGenes, PlantArabidopsisBase SequenceDNA MethylationDNA, PlantMolecular Sequence DataDNA, Plant

Identifiers

PMID9620857
PMCPMC316876
OpenAlexW2113170874

What OpenQuestion holds

Textmetadata
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.