Evidence map›Paper›PMID 19004852›Full record

ArticleDevelopment (Cambridge, England)2008

Two-step selection of a single R8 photoreceptor: a bistable loop between senseless and rough locks in R8 fate.

Kathryn L Pepple, Mardelle Atkins, Koen Venken, Kari Wellnitz, Mark Harding, Benjamin Frankfort, Graeme Mardon

Open access · bronzeAbstract read
In one paragraph

Article in Development (Cambridge, England), 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
1.6field-weighted citation impact, top 19% 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

37 citing papers in PubMed, 59 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Patterning of theFrontiers in cell and developmental biology · 2023
    Review
  6. Article
  7. Hexagonal patterning of the Drosophila eye.Developmental biology · 2021
    Review
  8. Review
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  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

7 authors at 1 institution in 1 country.

Kathryn L PeppleDepartment of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA.
Mardelle Atkins
Koen Venken
Kari Wellnitz
Mark Harding
Benjamin Frankfort
Graeme Mardon
Baylor College of Medicine · US

Funding

VISION RESEARCH CENTERP30EY002520 · NEI · BAYLOR COLLEGE OF MEDICINE · PI Samuel M Wu · 1985 to 2026
$14.8M
Retinal Cell-Fate Determination and Pattern FormationR01EY011232 · NEI · BAYLOR COLLEGE OF MEDICINE · PI MARDON, GRAEME · 1996 to 2019
$6.1M
MOLECULAR GENETICS EMPHASIZING VISION RESEARCHT32EY007102 · NEI · BAYLOR COLLEGE OF MEDICINE · PI MARDON, GRAEME · 1988 to 2019
$3.8M
NEI NIH HHS P30 EY002520NEI NIH HHS R01 EY011232NEI NIH HHS T32 EY007102
6 · The paper itself

Abstract

Patterning of sensory organs requires precise regulation of neural induction and repression. The neurocrystalline pattern of the adult Drosophila compound eye is generated by ordered selection of single founder photoreceptors (R8s) for each unit eye or ommatidium. R8 selection requires mechanisms that restrict R8 potential to a single cell from within a group of cells expressing the proneural gene atonal (ato). One model of R8 selection suggests that R8 precursors are selected from a three-cell ;R8 equivalence group' through repression of ato by the homeodomain transcription factor Rough (Ro). A second model proposes that lateral inhibition is sufficient to select a single R8 from an equipotent group of cells called the intermediate group (IG). Here, we provide new evidence that lateral inhibition, but not ro, is required for the initial selection of a single R8 precursor. We show that in ro mutants, ectopic R8s develop from R2,5 photoreceptor precursors independently of ectopic Ato and hours after normal R8s are specified. We also show that Ro directly represses the R8 specific zinc-finger transcription factor senseless (sens) in the developing R2,5 precursors to block ectopic R8 differentiation. Our results support a new model for R8 selection in which lateral inhibition establishes a transient pattern of selected R8s that is permanently reinforced by a repressive bistable loop between sens and ro. This model provides new insight into the strategies that allow successful integration of a repressive patterning signal, such as lateral inhibition, with continued developmental plasticity during retinal differentiation.

Indexed as

AnimalsAnimals, Genetically ModifiedBase SequenceBody PatterningCell Cycle ProteinsDNA ProbesDrosophilaDrosophila ProteinsEnhancer Elements, GeneticGene Expression Regulation, DevelopmentalGenes, InsectMicrotubule-Associated ProteinsModels, NeurologicalMolecular Sequence DataMutationNuclear ProteinsCell Cycle ProteinsDNA ProbesDrosophila ProteinsMicrotubule-Associated ProteinsNuclear ProteinsROD protein, Drosophilasens protein, DrosophilaTranscription Factors

Identifiers

PMID19004852
PMCPMC3135101
OpenAlexW2133883628

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.