Evidence map›Paper›PMID 27402384›Full record

ArticleeLife2016

Complementary shifts in photoreceptor spectral tuning unlock the full adaptive potential of ultraviolet vision in birds.

Matthew B Toomey, Olle Lind, Rikard Frederiksen, Robert W Curley, Ken M Riedl, David Wilby, Steven J Schwartz, Christopher C Witt, Earl H Harrison, Nicholas W Roberts and 5 more

Open access · goldAbstract read
In one paragraph

Article in eLife, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
4.0field-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

26 citing papers in PubMed, 63 citations in OpenAlex.

  1. Article
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  5. A Loss-of-Function Mutation inAnimals : an open access journal from MDPI · 2026
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  13. Carotenoid modifying enzymes in metazoans.Methods in enzymology · 2022
    Article
  14. Review
  15. Review
  16. Article
  17. Carotenoid metabolism at the intestinal barrier.Biochimica et biophysica acta. Molecular and cell biology of lipids · 2020
    Review
  18. Wild hummingbirds discriminate nonspectral colors.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  19. Thyroid hormone receptors mediate two distinct mechanisms of long-wavelength vision.Proceedings of the National Academy of Sciences of the United States of America · 2020
    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

15 authors at 8 institutions in 4 countries.

Matthew B ToomeyDepartment of Pathology and Immunology, Washington University School of Medicine, St. Louis, United States.ORCID 0000-0001-9184-197X
Olle LindDepartment of Philosophy, Lund University, Lund, Sweden.
Rikard FrederiksenDepartment of Physiology and Biophysics, Boston University, Boston, United States.
Robert W CurleyCollege of Pharmacy, The Ohio State University, Columbus, United States.
Ken M RiedlDepartment of Food Science and Technology, The Ohio State University, Columbus, United States.
David WilbySchool of Biological Sciences, University of Bristol, Bristol, United Kingdom.ORCID 0000-0002-6553-8739
Steven J SchwartzDepartment of Food Science and Technology, The Ohio State University, Columbus, United States.
Christopher C WittDepartment of Biology, University of New Mexico, Albuquerque, United States.ORCID 0000-0003-2781-1543
Earl H HarrisonDepartment of Human Nutrition, The Ohio State University, Columbus, United States.
Nicholas W RobertsSchool of Biological Sciences, University of Bristol, Bristol, United Kingdom.ORCID 0000-0002-4540-6683
Misha VorobyevDepartment of Optometry and Vision Science, University of Auckland, Auckland, New Zealand.
Kevin J McGrawSchool of Life Sciences, Arizona State University, Tempe, United States.
M Carter CornwallDepartment of Physiology and Biophysics, Boston University, Boston, United States.
Almut KelberDepartment of Biology, Lund University, Lund, Sweden.ORCID 0000-0003-3937-2808
Joseph C CorboDepartment of Pathology and Immunology, Washington University School of Medicine, St. Louis, United States.ORCID 0000-0002-9323-7140
The Ohio State University · USBoston University · USLund University · SEUniversity of Bristol · GBWashington University in St. Louis · USArizona State University · USUniversity of Auckland · NZUniversity of New Mexico · US

Funding

Translational Therapeutics Research Program (TT)P30CA016058 · NCI · OHIO STATE UNIVERSITY · PI Tasleem J Padamsee · 1985 to 2026
$132.3M
WASHINGTON UNIVERSITY CENTER VISION RESEARCHP30EY002687 · NEI · WASHINGTON UNIVERSITY · PI Philip Andrew Ruzycki · 1985 to 2026
$18.4M
Spectral & Metabolic Basis of Visual ResponsesR01EY001157 · NEI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI CORNWALL, M CARTER · 1985 to 2020
$8.3M
Research Training Program in the Vision SciencesT32EY013360 · NEI · WASHINGTON UNIVERSITY · PI SHIMING CHEN, Daniel Kerschensteiner · 2000 to 2026
$5.6M
DIETARY CAROTENOIDS--TRANSPORT IN HUMAN PLASMAR01HL049879 · NHLBI · U.S. DEPARTMENT OF AGRICULTURE · PI HARRISON, EARL HOWARD · 1994 to 2013
$2.5M
CONVERTING BIPOLAR CELLS INTO RED-SHIFTED OPTOGENETIC SENSORS FOR RETINAL THERAPYR01EY024958 · NEI · WASHINGTON UNIVERSITY · PI CORBO, JOSEPH, FLANNERY, JOHN GERARD · 2015 to 2019
$2.2M
QUANTITATIVE ANALYSIS AND ENGINEERING OF THE PHOTORECEPTOR TRANSCRIPTION NETWORKR01EY018826 · NEI · WASHINGTON UNIVERSITY · PI CORBO, JOSEPH · 2008 to 2012
$1.9M
Vitamin A Homeostasis: Retinyl Ester StoresR01DK101251 · NIDDK · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI BLANER, WILLIAM S, HARRISON, EARL HOWARD · 2016 to 2018
$1.4M
NCI NIH HHS P30 CA016058NEI NIH HHS P30 EY002687NEI NIH HHS R01 EY001157NEI NIH HHS R01 EY018826NEI NIH HHS R01 EY024958NEI NIH HHS T32 EY013360NHLBI NIH HHS R01 HL049879NIDDK NIH HHS R01 DK101251
6 · The paper itself

Abstract

Color vision in birds is mediated by four types of cone photoreceptors whose maximal sensitivities (λmax) are evenly spaced across the light spectrum. In the course of avian evolution, the λmax of the most shortwave-sensitive cone, SWS1, has switched between violet (λmax > 400 nm) and ultraviolet (λmax < 380 nm) multiple times. This shift of the SWS1 opsin is accompanied by a corresponding short-wavelength shift in the spectrally adjacent SWS2 cone. Here, we show that SWS2 cone spectral tuning is mediated by modulating the ratio of two apocarotenoids, galloxanthin and 11’,12’-dihydrogalloxanthin, which act as intracellular spectral filters in this cell type. We propose an enzymatic pathway that mediates the differential production of these apocarotenoids in the avian retina, and we use color vision modeling to demonstrate how correlated evolution of spectral tuning is necessary to achieve even sampling of the light spectrum and thereby maintain near-optimal color discrimination.

Indexed as

Ultraviolet RaysVision, OcularAnimalsBiological EvolutionBirdsCarotenoidsRetinal Cone Photoreceptor CellsCarotenoidsgalloxanthinbiochemistrybirdscarotenoidschickenneurosciencephotoreceptorsretinasensory ecologyspectral tuning

Identifiers

PMID27402384
PMCPMC4947394
OpenAlexW2462999262

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.