Evidence map›Paper›PMID 30837630›Full record

ArticleScientific reports2019

Countershading in zebrafish results from an Asip1 controlled dorsoventral gradient of pigment cell differentiation.

Laura Cal, Paula Suarez-Bregua, Pilar Comesaña, Jennifer Owen, Ingo Braasch, Robert Kelsh, José Miguel Cerdá-Reverter, Josep Rotllant

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

25 citing papers in PubMed, 67 citations in OpenAlex.

  1. Article
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  5. Article
  6. Agouti and BMP signaling drive a naturally occurring fate conversion of melanophores to leucophores in zebrafish.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  7. Article
  8. Review
  9. Science advances · 2024
    Article
  10. Article
  11. Article
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  14. Neural crest cells as a source of microevolutionary variation.Seminars in cell & developmental biology · 2023
    Review
  15. Article
  16. Article
  17. Review
  18. The application of genome editing technology in fish.Marine life science & technology · 2021
    Review
  19. 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

8 authors at 4 institutions in 3 countries.

Laura CalDeparment of Biotechnology and Aquaculture. Instituto de Investigaciones Marinas, IIM-CSIC, Vigo, 36208, Spain.
Paula Suarez-BreguaDeparment of Biotechnology and Aquaculture. Instituto de Investigaciones Marinas, IIM-CSIC, Vigo, 36208, Spain.
Pilar ComesañaDeparment of Biotechnology and Aquaculture. Instituto de Investigaciones Marinas, IIM-CSIC, Vigo, 36208, Spain.
Jennifer OwenDepartment of Biology and Biochemistry and Centre for Regenerative Medicine, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom.
Ingo BraaschDepartment of Integrative Biology and Program in Ecology, Evolutionary Biology and Behavior, Michigan State University, East Lansing, MI, 48824, USA.
Robert KelshDepartment of Biology and Biochemistry and Centre for Regenerative Medicine, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom.ORCID 0000-0002-9381-0066
José Miguel Cerdá-ReverterInstituto de Acuicultura de Torre de la Sal, IATS-CSIC, Castellón, 12595, Spain.
Josep RotllantDeparment of Biotechnology and Aquaculture. Instituto de Investigaciones Marinas, IIM-CSIC, Vigo, 36208, Spain. rotllant@iim.csic.es.
Instituto de Investigacións Mariñas · ESUniversity of Bath · GBInstituto de Acuicultura Torre de la Sal · ESMichigan State University · US

Funding

Biotechnology and Biological Sciences Research Council
6 · The paper itself

Abstract

Dorso-ventral (DV) countershading is a highly-conserved pigmentary adaptation in vertebrates. In mammals, spatially regulated expression of agouti-signaling protein (ASIP) generates the difference in shading by driving a switch between the production of chemically-distinct melanins in melanocytes in dorsal and ventral regions. In contrast, fish countershading seemed to result from a patterned DV distribution of differently-coloured cell-types (chromatophores). Despite the cellular differences in the basis for counter-shading, previous observations suggested that Agouti signaling likely played a role in this patterning process in fish. To test the hypotheses that Agouti regulated counter-shading in fish, and that this depended upon spatial regulation of the numbers of each chromatophore type, we engineered asip1 homozygous knockout mutant zebrafish. We show that loss-of-function asip1 mutants lose DV countershading, and that this results from changed numbers of multiple pigment cell-types in the skin and on scales. Our findings identify asip1 as key in the establishment of DV countershading in fish, but show that the cellular mechanism for translating a conserved signaling gradient into a conserved pigmentary phenotype has been radically altered in the course of evolution.

Indexed as

Agouti Signaling ProteinAmino Acid SequenceAnimalsBody PatterningCell DifferentiationCRISPR-Cas SystemsGene TargetingGenetic LociLoss of Function MutationPhenotypePigmentationZebrafishAgouti Signaling Protein

Identifiers

PMID30837630
PMCPMC6401153
OpenAlexW2920588547

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.