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Eyespot colour pattern determination by serial induction in fish: Mechanistic convergence with butterfly eyespots

Vertebrate and invertebrate colour pattern determination mechanisms are considered distinct; recently, however, both fish and butterfly colour patterns have been partly explained by reaction-diffusion mechanisms. Here, we show that multi-coloured eyespots of the spotted mandarin fish, which are remi...

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Autores principales: Ohno, Yoshikazu, Otaki, Joji M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3289039/
https://www.ncbi.nlm.nih.gov/pubmed/22375251
http://dx.doi.org/10.1038/srep00290
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author Ohno, Yoshikazu
Otaki, Joji M.
author_facet Ohno, Yoshikazu
Otaki, Joji M.
author_sort Ohno, Yoshikazu
collection PubMed
description Vertebrate and invertebrate colour pattern determination mechanisms are considered distinct; recently, however, both fish and butterfly colour patterns have been partly explained by reaction-diffusion mechanisms. Here, we show that multi-coloured eyespots of the spotted mandarin fish, which are reminiscent of butterfly eyespots, are determined by the serial induction of colour patterns. The morphological characterisation of eyespots indicates a sequence of colour pattern development and dynamic interactions between eyespots. A substantial part of an eyespot can be surgically removed and is then reconstructed by regeneration. Strikingly, ectopic patterns are induced by damage at a background (eyespotless) area, but focal damage did not change the eyespot size. Early stages of damage repair were accompanied by calcium oscillations. These results demonstrate that fish eyespots are determined by serial induction, which is likely based on a reaction-diffusion mechanism. These findings suggest mechanistic similarities between the fish and butterfly systems.
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spelling pubmed-32890392012-02-28 Eyespot colour pattern determination by serial induction in fish: Mechanistic convergence with butterfly eyespots Ohno, Yoshikazu Otaki, Joji M. Sci Rep Article Vertebrate and invertebrate colour pattern determination mechanisms are considered distinct; recently, however, both fish and butterfly colour patterns have been partly explained by reaction-diffusion mechanisms. Here, we show that multi-coloured eyespots of the spotted mandarin fish, which are reminiscent of butterfly eyespots, are determined by the serial induction of colour patterns. The morphological characterisation of eyespots indicates a sequence of colour pattern development and dynamic interactions between eyespots. A substantial part of an eyespot can be surgically removed and is then reconstructed by regeneration. Strikingly, ectopic patterns are induced by damage at a background (eyespotless) area, but focal damage did not change the eyespot size. Early stages of damage repair were accompanied by calcium oscillations. These results demonstrate that fish eyespots are determined by serial induction, which is likely based on a reaction-diffusion mechanism. These findings suggest mechanistic similarities between the fish and butterfly systems. Nature Publishing Group 2012-02-28 /pmc/articles/PMC3289039/ /pubmed/22375251 http://dx.doi.org/10.1038/srep00290 Text en Copyright © 2012, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-sa/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareALike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/
spellingShingle Article
Ohno, Yoshikazu
Otaki, Joji M.
Eyespot colour pattern determination by serial induction in fish: Mechanistic convergence with butterfly eyespots
title Eyespot colour pattern determination by serial induction in fish: Mechanistic convergence with butterfly eyespots
title_full Eyespot colour pattern determination by serial induction in fish: Mechanistic convergence with butterfly eyespots
title_fullStr Eyespot colour pattern determination by serial induction in fish: Mechanistic convergence with butterfly eyespots
title_full_unstemmed Eyespot colour pattern determination by serial induction in fish: Mechanistic convergence with butterfly eyespots
title_short Eyespot colour pattern determination by serial induction in fish: Mechanistic convergence with butterfly eyespots
title_sort eyespot colour pattern determination by serial induction in fish: mechanistic convergence with butterfly eyespots
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3289039/
https://www.ncbi.nlm.nih.gov/pubmed/22375251
http://dx.doi.org/10.1038/srep00290
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