A phylogenetic re-analysis of groupers with applications for ciguatera fish poisoning.

<h4>Background</h4>Ciguatera fish poisoning (CFP) is a significant public health problem due to dinoflagellates. It is responsible for one of the highest reported incidence of seafood-borne illness and Groupers are commonly reported as a source of CFP due to their position in the food ch...

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Autores principales:	Charlotte Schoelinck, Damien D Hinsinger, Agnès Dettaï, Corinne Cruaud, Jean-Lou Justine
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a42c22eb6c8648998e1bd5688ad32437
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spelling	oai:doaj.org-article:a42c22eb6c8648998e1bd5688ad324372021-11-25T06:05:53ZA phylogenetic re-analysis of groupers with applications for ciguatera fish poisoning.1932-620310.1371/journal.pone.0098198https://doaj.org/article/a42c22eb6c8648998e1bd5688ad324372014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/25093850/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Ciguatera fish poisoning (CFP) is a significant public health problem due to dinoflagellates. It is responsible for one of the highest reported incidence of seafood-borne illness and Groupers are commonly reported as a source of CFP due to their position in the food chain. With the role of recent climate change on harmful algal blooms, CFP cases might become more frequent and more geographically widespread. Since there is no appropriate treatment for CFP, the most efficient solution is to regulate fish consumption. Such a strategy can only work if the fish sold are correctly identified, and it has been repeatedly shown that misidentifications and species substitutions occur in fish markets.<h4>Methods</h4>We provide here both a DNA-barcoding reference for groupers, and a new phylogenetic reconstruction based on five genes and a comprehensive taxonomical sampling. We analyse the correlation between geographic range of species and their susceptibility to ciguatera accumulation, and the co-occurrence of ciguatoxins in closely related species, using both character mapping and statistical methods.<h4>Results</h4>Misidentifications were encountered in public databases, precluding accurate species identifications. Epinephelinae now includes only twelve genera (vs. 15 previously). Comparisons with the ciguatera incidences show that in some genera most species are ciguateric, but statistical tests display only a moderate correlation with the phylogeny. Atlantic species were rarely contaminated, with ciguatera occurrences being restricted to the South Pacific.<h4>Conclusions</h4>The recent changes in classification based on the reanalyses of the relationships within Epinephelidae have an impact on the interpretation of the ciguatera distribution in the genera. In this context and to improve the monitoring of fish trade and safety, we need to obtain extensive data on contamination at the species level. Accurate species identifications through DNA barcoding are thus an essential tool in controlling CFP since meal remnants in CFP cases can be easily identified with molecular tools.Charlotte SchoelinckDamien D HinsingerAgnès DettaïCorinne CruaudJean-Lou JustinePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 8, p e98198 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Charlotte Schoelinck Damien D Hinsinger Agnès Dettaï Corinne Cruaud Jean-Lou Justine A phylogenetic re-analysis of groupers with applications for ciguatera fish poisoning.
description	<h4>Background</h4>Ciguatera fish poisoning (CFP) is a significant public health problem due to dinoflagellates. It is responsible for one of the highest reported incidence of seafood-borne illness and Groupers are commonly reported as a source of CFP due to their position in the food chain. With the role of recent climate change on harmful algal blooms, CFP cases might become more frequent and more geographically widespread. Since there is no appropriate treatment for CFP, the most efficient solution is to regulate fish consumption. Such a strategy can only work if the fish sold are correctly identified, and it has been repeatedly shown that misidentifications and species substitutions occur in fish markets.<h4>Methods</h4>We provide here both a DNA-barcoding reference for groupers, and a new phylogenetic reconstruction based on five genes and a comprehensive taxonomical sampling. We analyse the correlation between geographic range of species and their susceptibility to ciguatera accumulation, and the co-occurrence of ciguatoxins in closely related species, using both character mapping and statistical methods.<h4>Results</h4>Misidentifications were encountered in public databases, precluding accurate species identifications. Epinephelinae now includes only twelve genera (vs. 15 previously). Comparisons with the ciguatera incidences show that in some genera most species are ciguateric, but statistical tests display only a moderate correlation with the phylogeny. Atlantic species were rarely contaminated, with ciguatera occurrences being restricted to the South Pacific.<h4>Conclusions</h4>The recent changes in classification based on the reanalyses of the relationships within Epinephelidae have an impact on the interpretation of the ciguatera distribution in the genera. In this context and to improve the monitoring of fish trade and safety, we need to obtain extensive data on contamination at the species level. Accurate species identifications through DNA barcoding are thus an essential tool in controlling CFP since meal remnants in CFP cases can be easily identified with molecular tools.
format	article
author	Charlotte Schoelinck Damien D Hinsinger Agnès Dettaï Corinne Cruaud Jean-Lou Justine
author_facet	Charlotte Schoelinck Damien D Hinsinger Agnès Dettaï Corinne Cruaud Jean-Lou Justine
author_sort	Charlotte Schoelinck
title	A phylogenetic re-analysis of groupers with applications for ciguatera fish poisoning.
title_short	A phylogenetic re-analysis of groupers with applications for ciguatera fish poisoning.
title_full	A phylogenetic re-analysis of groupers with applications for ciguatera fish poisoning.
title_fullStr	A phylogenetic re-analysis of groupers with applications for ciguatera fish poisoning.
title_full_unstemmed	A phylogenetic re-analysis of groupers with applications for ciguatera fish poisoning.
title_sort	phylogenetic re-analysis of groupers with applications for ciguatera fish poisoning.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/a42c22eb6c8648998e1bd5688ad32437
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A phylogenetic re-analysis of groupers with applications for ciguatera fish poisoning.

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