Evidence map›Paper›PMID 17640898›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2007

Natural polymorphism affecting learning and memory in Drosophila.

Frederic Mery, Amsale T Belay, Anthony K-C So, Marla B Sokolowski, Tadeusz J Kawecki

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 77 papers.

0numbers the graph read from it
0cells of the map it votes in
77citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

77 citing papers in PubMed, 170 citations in OpenAlex.

  1. Article
  2. What could evolve in the evolution of memory?Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Article
  3. Evolution of diverse (and advanced) cognitive abilities through adaptive fine-tuning of learning and chunking mechanisms.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Article
  4. Multiple methods for assessing learning and memory inbioRxiv : the preprint server for biology · 2025
    Article
  5. Article
  6. Article
  7. Review
  8. Review
  9. Genes Responsible for HBiomolecules · 2022
    Article
  10. Article
  11. Expression of theJournal of neurogenetics · 2021
    Article
  12. TheJournal of neurogenetics · 2021
    Article
  13. Article
  14. Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  15. Review
  16. Article
  17. Aging and the clock: Perspective from flies to humans.The European journal of neuroscience · 2020
    Review
  18. Article
  19. Habitat and social context affect memory phenotype, exploration and covariance among these traits.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2018
    Article
  20. Review

17 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

5 authors at 3 institutions in 3 countries.

Frederic MeryDepartment of Biology, University of Fribourg, Chemin du Musée 10, CH 1700 Fribourg, Switzerland.
Amsale T Belay
Anthony K-C So
Marla B Sokolowski
Tadeusz J Kawecki
University of Toronto · CACentre de Génétique Moléculaire · FRUniversity of Lausanne · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Knowing which genes contribute to natural variation in learning and memory would help us understand how differences in these cognitive traits evolve among populations and species. We show that a natural polymorphism at the foraging (for) locus, which encodes a cGMP-dependent protein kinase (PKG), affects associative olfactory learning in Drosophila melanogaster. In an assay that tests the ability to associate an odor with mechanical shock, flies homozygous for one natural allelic variant of this gene (forR) showed better short-term but poorer long-term memory than flies homozygous for another natural allele (fors). The fors allele is characterized by reduced PKG activity. We showed that forR-like levels of both short-term learning and long-term memory can be induced in fors flies by selectively increasing the level of PKG in the mushroom bodies, which are centers of olfactory learning in the fly brain. Thus, the natural polymorphism at for may mediate an evolutionary tradeoff between short- and long-term memory. The respective strengths of learning performance of the two genotypes seem coadapted with their effects on foraging behavior: forR flies move more between food patches and so could particularly benefit from fast learning, whereas fors flies are more sedentary, which should favor good long-term memory.

Indexed as

LearningMemoryAllelesAnimalsCyclic GMP-Dependent Protein KinasesDrosophilaEcologyPolymorphism, GeneticCyclic GMP-Dependent Protein Kinases

Identifiers

PMID17640898
PMCPMC1941815
OpenAlexW2099866309

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.