Evidence map›Paper›PMID 34702070›Full record

ArticleProceedings. Biological sciences2021

Red-green opponency in the long visual fibre photoreceptors of brushfoot butterflies (Nymphalidae).

Gregor Belušič, Marko Ilić, Andrej Meglič, Primož Pirih

Open access · hybridAbstract read
In one paragraph

Article in Proceedings. Biological sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

17 citing papers in PubMed, 29 citations in OpenAlex.

  1. Evolution of compound eye cell types shapes visual behaviors acrossbioRxiv : the preprint server for biology · 2026
    Article
  2. Iridescence, polarisation and directionality of Morpho butterfly displays.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2026
    Article
  3. Graded opsin co-expression along the butterfly retina fine tunes the spectral sensitivity of a colour-opponent cell across the visual field.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2026
    Article
  4. Cellular innovations and diversity in the lepidopteran compound eye.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2026
    Review
  5. Emerging tools to advance neuroethology in butterflies and moths.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2026
    Review
  6. Mutualisms within light microhabitats are associated with sensory convergence in a mimetic butterfly community.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  7. Article
  8. Article
  9. Butterfly blues and greens caused by subtractive colour mixing of carotenoids and bile pigments.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2024
    Article
  10. Article
  11. Simple and complex, sexually dimorphic retinal mosaic of fritillary butterflies.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022
    Article
  12. Opponent processing in the retinal mosaic of nymphalid butterflies.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022
    Article
  13. Insect opsins and evo-devo: what have we learned in 25 years?Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022
    Review
  14. Article
  15. Article
  16. Article
  17. 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

4 authors at 2 institutions in 1 country.

Gregor BelušičBiotechnical Faculty, University of Ljubljana, Večna pot 111, 1000 Ljubljana, Slovenia.ORCID 0000-0003-3571-1948
Marko IlićBiotechnical Faculty, University of Ljubljana, Večna pot 111, 1000 Ljubljana, Slovenia.ORCID 0000-0001-9910-0359
Andrej MegličEye Hospital, University Medical Centre, Grablovičeva 46, 1000 Ljubljana, Slovenia.ORCID 0000-0003-3837-8108
Primož PirihBiotechnical Faculty, University of Ljubljana, Večna pot 111, 1000 Ljubljana, Slovenia.ORCID 0000-0003-1710-444X
University of Ljubljana · SILjubljana University Medical Centre · SI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In many butterflies, the ancestral trichromatic insect colour vision, based on UV-, blue- and green-sensitive photoreceptors, is extended with red-sensitive cells. Physiological evidence for red receptors has been missing in nymphalid butterflies, although some species can discriminate red hues well. In eight species from genera

Indexed as

ButterfliesColor VisionAnimalsColor PerceptionLightPhotoreceptor Cells, InvertebrateNymphalidaeopponencyphotoreceptorretinavision

Identifiers

PMID34702070
PMCPMC8548807
OpenAlexW3208009578

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.