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Fishing for the Virome of Tropical Tuna

While planktonic viruses have received much attention in recent decades, knowledge of the virome of marine organisms, especially fish, still remains rudimentary. This is notably the case with tuna, which are among the most consumed fish worldwide and represent considerable economic, social and nutri...

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Autores principales: Gadoin, Elsa, Desnues, Christelle, Monteil-Bouchard, Sonia, Bouvier, Thierry, Auguet, Jean-Christophe, Roque d’Orbcastel, Emmanuelle, Bettarel, Yvan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8310200/
https://www.ncbi.nlm.nih.gov/pubmed/34372497
http://dx.doi.org/10.3390/v13071291
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author Gadoin, Elsa
Desnues, Christelle
Monteil-Bouchard, Sonia
Bouvier, Thierry
Auguet, Jean-Christophe
Roque d’Orbcastel, Emmanuelle
Bettarel, Yvan
author_facet Gadoin, Elsa
Desnues, Christelle
Monteil-Bouchard, Sonia
Bouvier, Thierry
Auguet, Jean-Christophe
Roque d’Orbcastel, Emmanuelle
Bettarel, Yvan
author_sort Gadoin, Elsa
collection PubMed
description While planktonic viruses have received much attention in recent decades, knowledge of the virome of marine organisms, especially fish, still remains rudimentary. This is notably the case with tuna, which are among the most consumed fish worldwide and represent considerable economic, social and nutritional value. Yet the composition of the tuna virome and its biological and environmental determinants remain unknown. To begin to address this gap, we investigated the taxonomic diversity of viral communities inhabiting the skin mucus, gut and liver of two major tropical tuna species (skipjack and yellowfin) in individuals fished in the Atlantic and Indian Oceans. While we found significant differences in the virome composition between the organs, this was totally independent of the tuna species or sex. The tuna virome was mainly dominated by eukaryotic viruses in the digestive organs (gut and liver), while bacteriophages were predominant in the mucus. We observed the presence of specific viral families in each organ, some previously identified as fish or human pathogens (e.g., Iridoviridae, Parvoviridae, Alloherpesviridae, Papillomaviridae). Interestingly, we also detected a ‘core virome’ that was shared by all the organs and was mainly composed of Caudovirales, Microviridae and Circoviridae. These results show that tuna host a mosaic of viral niches, whose establishment, role and circulation remain to be elucidated.
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spelling pubmed-83102002021-07-25 Fishing for the Virome of Tropical Tuna Gadoin, Elsa Desnues, Christelle Monteil-Bouchard, Sonia Bouvier, Thierry Auguet, Jean-Christophe Roque d’Orbcastel, Emmanuelle Bettarel, Yvan Viruses Article While planktonic viruses have received much attention in recent decades, knowledge of the virome of marine organisms, especially fish, still remains rudimentary. This is notably the case with tuna, which are among the most consumed fish worldwide and represent considerable economic, social and nutritional value. Yet the composition of the tuna virome and its biological and environmental determinants remain unknown. To begin to address this gap, we investigated the taxonomic diversity of viral communities inhabiting the skin mucus, gut and liver of two major tropical tuna species (skipjack and yellowfin) in individuals fished in the Atlantic and Indian Oceans. While we found significant differences in the virome composition between the organs, this was totally independent of the tuna species or sex. The tuna virome was mainly dominated by eukaryotic viruses in the digestive organs (gut and liver), while bacteriophages were predominant in the mucus. We observed the presence of specific viral families in each organ, some previously identified as fish or human pathogens (e.g., Iridoviridae, Parvoviridae, Alloherpesviridae, Papillomaviridae). Interestingly, we also detected a ‘core virome’ that was shared by all the organs and was mainly composed of Caudovirales, Microviridae and Circoviridae. These results show that tuna host a mosaic of viral niches, whose establishment, role and circulation remain to be elucidated. MDPI 2021-07-02 /pmc/articles/PMC8310200/ /pubmed/34372497 http://dx.doi.org/10.3390/v13071291 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Gadoin, Elsa
Desnues, Christelle
Monteil-Bouchard, Sonia
Bouvier, Thierry
Auguet, Jean-Christophe
Roque d’Orbcastel, Emmanuelle
Bettarel, Yvan
Fishing for the Virome of Tropical Tuna
title Fishing for the Virome of Tropical Tuna
title_full Fishing for the Virome of Tropical Tuna
title_fullStr Fishing for the Virome of Tropical Tuna
title_full_unstemmed Fishing for the Virome of Tropical Tuna
title_short Fishing for the Virome of Tropical Tuna
title_sort fishing for the virome of tropical tuna
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8310200/
https://www.ncbi.nlm.nih.gov/pubmed/34372497
http://dx.doi.org/10.3390/v13071291
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