Evidence map›Paper›PMID 26175094›Full record

ArticleMolecular ecology2015

Variable light environments induce plastic spectral tuning by regional opsin coexpression in the African cichlid fish, Metriaclima zebra.

Brian E Dalton, Jessica Lu, Jeff Leips, Thomas W Cronin, Karen L Carleton

Open access · greenAbstract read
In one paragraph

Article in Molecular ecology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
3.9field-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

39 citing papers in PubMed, 72 citations in OpenAlex.

  1. Article
  2. 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
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  12. Axes of visual adaptation in the ecologically diverse family Cichlidae.Seminars in cell & developmental biology · 2020
    Review
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  15. Exceptional diversity of opsin expression patterns inProceedings of the National Academy of Sciences of the United States of America · 2020
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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 2 institutions in 1 country.

Brian E DaltonDepartment of Biology, University of Maryland, Baltimore County, MD, 21250, USA.
Jessica LuDepartment of Biology, University of Maryland, College Park, MD, 20742, USA.
Jeff LeipsDepartment of Biology, University of Maryland, Baltimore County, MD, 21250, USA.
Thomas W CroninDepartment of Biology, University of Maryland, Baltimore County, MD, 21250, USA.
Karen L CarletonDepartment of Biology, University of Maryland, College Park, MD, 20742, USA.
University of Maryland, Baltimore County · USUniversity of Maryland, College Park · US

Funding

Evolutionary mechanisms controlling opsin gene expression variationR01EY024639 · NEI · UNIV OF MARYLAND, COLLEGE PARK · PI CARLETON, KAREN L · 2014 to 2020
$1.9M
NEI NIH HHS 1R01EY024639NEI NIH HHS R01 EY024639
6 · The paper itself

Abstract

Critical behaviours such as predation and mate choice often depend on vision. Visual systems are sensitive to the spectrum of light in their environment, which can vary extensively both within and among habitats. Evolutionary changes in spectral sensitivity contribute to divergence and speciation. Spectral sensitivity of the retina is primarily determined by visual pigments, which are opsin proteins bound to a chromophore. We recently discovered that photoreceptors in different regions of the retina, which view objects against distinct environmental backgrounds, coexpress different pairs of opsins in an African cichlid fish, Metriaclima zebra. This coexpression tunes the sensitivity of the retinal regions to the corresponding backgrounds and may aid in detection of dark objects, such as predators. Although intraretinal regionalization of spectral sensitivity in many animals correlates with their light environments, it is unknown whether variation in the light environment induces developmentally plastic alterations of intraretinal sensitivity regions. Here, we demonstrate with fluorescent in situ hybridization and qPCR that the spectrum and angle of environmental light both influence the development of spectral sensitivity regions by altering the distribution and level of opsins across the retina. Normally, M. zebra coexpresses LWS opsin with RH2Aα opsin in double cones of the ventral but not the dorsal retina. However, when illuminated from below throughout development, adult M. zebra coexpressed LWS and RH2Aα in double cones both dorsally and ventrally. Thus, environmental background spectra alter the spectral sensitivity pattern that develops across the retina, potentially influencing behaviours and related evolutionary processes such as courtship and speciation.

Indexed as

LightAnimalsCichlidsCone OpsinsEnvironmentGenotypeIn Situ Hybridization, FluorescencePolymerase Chain ReactionRetinaVision, OcularCone Opsinscichlidgene expressionopsinplasticityspectral tuningvisual sensitivity

Identifiers

PMID26175094
PMCPMC4532641
OpenAlexW1948447996

What OpenQuestion holds

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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.