Evidence map›Paper›PMID 34352205›Full record

ArticleMolecular cell2021

Large Drosophila germline piRNA clusters are evolutionarily labile and dispensable for transposon regulation.

Daniel Gebert, Lena K Neubert, Catrin Lloyd, Jinghua Gui, Ruth Lehmann, Felipe Karam Teixeira

Open access · hybridAbstract read
In one paragraph

Article in Molecular cell, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed
17.3field-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

60 citing papers in PubMed, 101 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. AbioRxiv : the preprint server for biology · 2026
    Article
  5. Article
  6. Article
  7. Rapid evolution and comparative analysis of piRNA clusters inbioRxiv : the preprint server for biology · 2026
    Article
  8. Article
  9. Article
  10. Systematic analysis of noncanonical ribosomal protein paralogs does not provide evidence for specialized functions inProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Abundant piRNA production mediated by theProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  17. Review
  18. Review
  19. Paramutation-Like Behavior of Genic piRNA-Producing Loci inInternational journal of molecular sciences · 2025
    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 2 institutions in 2 countries.

Daniel GebertDepartment of Genetics, University of Cambridge, Cambridge CB2 3EH, UK.
Lena K NeubertDepartment of Genetics, University of Cambridge, Cambridge CB2 3EH, UK.
Catrin LloydDepartment of Genetics, University of Cambridge, Cambridge CB2 3EH, UK.
Jinghua GuiDepartment of Genetics, University of Cambridge, Cambridge CB2 3EH, UK.
Ruth LehmannHoward Hughes Medical Institute (HHMI) and Kimmel Center for Biology and Medicine of the Skirball Institute, Department of Cell Biology, New York University School of Medicine, New York, NY 10016, USA. Electronic address: lehmann@wi.mit.edu.
Felipe Karam TeixeiraDepartment of Genetics, University of Cambridge, Cambridge CB2 3EH, UK. Electronic address: fk319@cam.ac.uk.
University of Cambridge · GBNew York University · US

Funding

Germ Cell Migration in Drosophila.R37HD041900 · NICHD · WHITEHEAD INSTITUTE FOR BIOMEDICAL RES · PI LEHMANN, RUTH · 2013 to 2021
$2.6M
NICHD NIH HHS R37 HD041900Wellcome Trust
6 · The paper itself

Abstract

PIWI proteins and their guiding Piwi-interacting small RNAs (piRNAs) are crucial for fertility and transposon defense in the animal germline. In most species, the majority of piRNAs are produced from distinct large genomic loci, called piRNA clusters. It is assumed that germline-expressed piRNA clusters, particularly in Drosophila, act as principal regulators to control transposons dispersed across the genome. Here, using synteny analysis, we show that large clusters are evolutionarily labile, arise at loci characterized by recurrent chromosomal rearrangements, and are mostly species-specific across the Drosophila genus. By engineering chromosomal deletions in D. melanogaster, we demonstrate that the three largest germline clusters, which account for the accumulation of >40% of all transposon-targeting piRNAs in ovaries, are neither required for fertility nor for transposon regulation in trans. We provide further evidence that dispersed elements, rather than the regulatory action of large Drosophila germline clusters in trans, may be central for transposon defense.

Indexed as

DNA Transposable ElementsEvolution, MolecularMultigene FamilyRNA StabilityAnimalsAnimals, Genetically ModifiedArgonaute ProteinsChromosome DeletionChromosomes, InsectDrosophila melanogasterDrosophila ProteinsFemaleFertilityGene Expression Regulation, DevelopmentalOvaryRNA, Small InterferingArgonaute ProteinsDNA Transposable ElementsDrosophila Proteinspiwi protein, DrosophilaRNA, Small Interferingchromosome inversionsflamencofruit flygene silencinggerm cellsgypsy12heterochromatinposition-effect variegationsterilitytransposable elements

Identifiers

PMID34352205
PMCPMC8516431
OpenAlexW3191485155

What OpenQuestion holds

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Registered trials

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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.