Evidence map›Paper›PMID 19103667›Full record

ArticleNucleic acids research2009

Silencing-associated and meiosis-specific small RNA pathways in Paramecium tetraurelia.

Gersende Lepère, Mariusz Nowacki, Vincent Serrano, Jean-François Gout, Gérard Guglielmi, Sandra Duharcourt, Eric Meyer

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 83 papers.

0numbers the graph read from it
0cells of the map it votes in
83citing papers in PubMed
3.0field-weighted citation impact, top 8% 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

83 citing papers in PubMed, 139 citations in OpenAlex.

  1. Article
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  17. Annual review of genetics · 2023
    Review
  18. Article
  19. MITE infestation accommodated by genome editing in the germline genome of the ciliateProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  20. Article

23 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

7 authors at 3 institutions in 3 countries.

Gersende LepèreEcole Normale Supérieure, Laboratoire de Génétique Moléculaire, CNRS, UMR8541, 46 rue d'Ulm, 75005 Paris, France.
Mariusz Nowacki
Vincent Serrano
Jean-François Gout
Gérard Guglielmi
Sandra Duharcourt
Eric Meyer
École Normale Supérieure - PSL · FRCentre National de la Recherche Scientifique · FRUniversité Claude Bernard Lyon 1 · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Distinct small RNA pathways are involved in the two types of homology-dependent effects described in Paramecium tetraurelia, as shown by a functional analysis of Dicer and Dicer-like genes and by the sequencing of small RNAs. The siRNAs that mediate post-transcriptional gene silencing when cells are fed with double-stranded RNA (dsRNA) were found to comprise two subclasses. DCR1-dependent cleavage of the inducing dsRNA generates approximately 23-nt primary siRNAs from both strands, while a different subclass of approximately 24-nt RNAs, characterized by a short untemplated poly-A tail, is strictly antisense to the targeted mRNA, suggestive of secondary siRNAs that depend on an RNA-dependent RNA polymerase. An entirely distinct pathway is responsible for homology-dependent regulation of developmental genome rearrangements after sexual reproduction. During early meiosis, the DCL2 and DCL3 genes are required for the production of a highly complex population of approximately 25-nt scnRNAs from all types of germline sequences, including both strands of exons, introns, intergenic regions, transposons and Internal Eliminated Sequences. A prominent 5'-UNG signature, and a minor fraction showing the complementary signature at positions 21-23, indicate that scnRNAs are cleaved from dsRNA precursors as duplexes with 2-nt 3' overhangs at both ends, followed by preferential stabilization of the 5'-UNG strand.

Indexed as

RNA InterferenceAnimalsCloning, MolecularMeiosisMembrane ProteinsParamecium tetraureliaPolyadenylationProtozoan ProteinsRibonuclease IIIRNA, Small InterferingMembrane ProteinsND7 protein, ProtozoaProtozoan ProteinsRibonuclease IIIRNA, Small Interfering

Identifiers

PMID19103667
PMCPMC2647294
OpenAlexW2039596689

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.