Evidence map›Paper›PMID 19395010›Full record

ArticleCell2009

Specialized piRNA pathways act in germline and somatic tissues of the Drosophila ovary.

Colin D Malone, Julius Brennecke, Monica Dus, Alexander Stark, W Richard McCombie, Ravi Sachidanandam, Gregory J Hannon

Open access · bronzeAbstract read
In one paragraph

Article in Cell, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 534 papers.

0numbers the graph read from it
0cells of the map it votes in
534citing papers in PubMed
91.0field-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

534 citing papers in PubMed, 895 citations in OpenAlex.

  1. Article
  2. Article
  3. piRNA loss unleashes episodic transposition bursts.bioRxiv : the preprint server for biology · 2026
    Article
  4. Life science alliance · 2026
    Article
  5. Review
  6. Article
  7. Article
  8. In thebioRxiv : the preprint server for biology · 2026
    Article
  9. Article
  10. Article
  11. AbioRxiv : the preprint server for biology · 2026
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Reproductive phasiRNAs are the piRNAs of plants.Trends in genetics : TIG · 2026
    Review
  17. Article
  18. Article
  19. Review
  20. Article

474 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 1 country.

Colin D MaloneWatson School of Biological Sciences, Cold Spring Harbor, NY 11724, USA.
Julius Brennecke
Monica Dus
Alexander Stark
W Richard McCombie
Ravi Sachidanandam
Gregory J Hannon
Cold Spring Harbor Laboratory · USHoward Hughes Medical Institute · USMassachusetts Institute of Technology · US

Funding

VIRAL TRANSACTIVATIONP01CA013106 · NCI · COLD SPRING HARBOR LABORATORY · PI William Richard McCombie · 1985 to 2026
$116.8M
NCI NIH HHS P01 CA013106
6 · The paper itself

Abstract

In Drosophila gonads, Piwi proteins and associated piRNAs collaborate with additional factors to form a small RNA-based immune system that silences mobile elements. Here, we analyzed nine Drosophila piRNA pathway mutants for their impacts on both small RNA populations and the subcellular localization patterns of Piwi proteins. We find that distinct piRNA pathways with differing components function in ovarian germ and somatic cells. In the soma, Piwi acts singularly with the conserved flamenco piRNA cluster to enforce silencing of retroviral elements that may propagate by infecting neighboring germ cells. In the germline, silencing programs encoded within piRNA clusters are optimized via a slicer-dependent amplification loop to suppress a broad spectrum of elements. The classes of transposons targeted by germline and somatic piRNA clusters, though not the precise elements, are conserved among Drosophilids, demonstrating that the architecture of piRNA clusters has coevolved with the transposons that they are tasked to control.

Indexed as

AnimalsDrosophila melanogasterFemaleGene SilencingMutationOvaryRetroelementsRNA, Small InterferingRNA, UntranslatedRetroelementsRNA, Small InterferingRNA, Untranslated

Identifiers

PMID19395010
PMCPMC2882632
OpenAlexW2113377893

What OpenQuestion holds

Textmetadata
LicenceTDM
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.