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DNA barcoding reveals different cestode helminth species in northern European marine and freshwater ringed seals

Three subspecies of the ringed seal (Pusa hispida) are found in northeastern Europe: P. h. botnica in the Baltic Sea, P. h saimensis in Lake Saimaa in Finland, and P. h. ladogensis in Lake Ladoga in Russia. We investigated the poorly-known cestode helminth communities of these closely related but ec...

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Autores principales: Nyman, Tommi, Papadopoulou, Elena, Ylinen, Eeva, Wutke, Saskia, Michell, Craig T., Sromek, Ludmila, Sinisalo, Tuula, Andrievskaya, Elena, Alexeev, Vyacheslav, Kunnasranta, Mervi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8261468/
https://www.ncbi.nlm.nih.gov/pubmed/34277335
http://dx.doi.org/10.1016/j.ijppaw.2021.06.004
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author Nyman, Tommi
Papadopoulou, Elena
Ylinen, Eeva
Wutke, Saskia
Michell, Craig T.
Sromek, Ludmila
Sinisalo, Tuula
Andrievskaya, Elena
Alexeev, Vyacheslav
Kunnasranta, Mervi
author_facet Nyman, Tommi
Papadopoulou, Elena
Ylinen, Eeva
Wutke, Saskia
Michell, Craig T.
Sromek, Ludmila
Sinisalo, Tuula
Andrievskaya, Elena
Alexeev, Vyacheslav
Kunnasranta, Mervi
author_sort Nyman, Tommi
collection PubMed
description Three subspecies of the ringed seal (Pusa hispida) are found in northeastern Europe: P. h. botnica in the Baltic Sea, P. h saimensis in Lake Saimaa in Finland, and P. h. ladogensis in Lake Ladoga in Russia. We investigated the poorly-known cestode helminth communities of these closely related but ecologically divergent subspecies using COI barcode data. Our results show that, while cestodes from the Baltic Sea represent Schistocephalus solidus, all worms from the two lakes are identified as Ligula intestinalis, a species that has previously not been reported from seals. The observed shift in cestode communities appears to be driven by differential availability of intermediate fish host species in marine vs. freshwater environments. Both observed cestode species normally infect fish-eating birds, so further work is required to elucidate the health and conservation implications of cestode infections in European ringed seals, whether L. intestinalis occurs also in marine ringed seals, and whether the species is able to reproduce in seal hosts. In addition, a deep barcode divergence found within S. solidus suggests the presence of cryptic diversity under this species name.
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spelling pubmed-82614682021-07-16 DNA barcoding reveals different cestode helminth species in northern European marine and freshwater ringed seals Nyman, Tommi Papadopoulou, Elena Ylinen, Eeva Wutke, Saskia Michell, Craig T. Sromek, Ludmila Sinisalo, Tuula Andrievskaya, Elena Alexeev, Vyacheslav Kunnasranta, Mervi Int J Parasitol Parasites Wildl Regular Article Three subspecies of the ringed seal (Pusa hispida) are found in northeastern Europe: P. h. botnica in the Baltic Sea, P. h saimensis in Lake Saimaa in Finland, and P. h. ladogensis in Lake Ladoga in Russia. We investigated the poorly-known cestode helminth communities of these closely related but ecologically divergent subspecies using COI barcode data. Our results show that, while cestodes from the Baltic Sea represent Schistocephalus solidus, all worms from the two lakes are identified as Ligula intestinalis, a species that has previously not been reported from seals. The observed shift in cestode communities appears to be driven by differential availability of intermediate fish host species in marine vs. freshwater environments. Both observed cestode species normally infect fish-eating birds, so further work is required to elucidate the health and conservation implications of cestode infections in European ringed seals, whether L. intestinalis occurs also in marine ringed seals, and whether the species is able to reproduce in seal hosts. In addition, a deep barcode divergence found within S. solidus suggests the presence of cryptic diversity under this species name. Elsevier 2021-06-24 /pmc/articles/PMC8261468/ /pubmed/34277335 http://dx.doi.org/10.1016/j.ijppaw.2021.06.004 Text en © 2021 Published by Elsevier Ltd on behalf of Australian Society for Parasitology. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Regular Article
Nyman, Tommi
Papadopoulou, Elena
Ylinen, Eeva
Wutke, Saskia
Michell, Craig T.
Sromek, Ludmila
Sinisalo, Tuula
Andrievskaya, Elena
Alexeev, Vyacheslav
Kunnasranta, Mervi
DNA barcoding reveals different cestode helminth species in northern European marine and freshwater ringed seals
title DNA barcoding reveals different cestode helminth species in northern European marine and freshwater ringed seals
title_full DNA barcoding reveals different cestode helminth species in northern European marine and freshwater ringed seals
title_fullStr DNA barcoding reveals different cestode helminth species in northern European marine and freshwater ringed seals
title_full_unstemmed DNA barcoding reveals different cestode helminth species in northern European marine and freshwater ringed seals
title_short DNA barcoding reveals different cestode helminth species in northern European marine and freshwater ringed seals
title_sort dna barcoding reveals different cestode helminth species in northern european marine and freshwater ringed seals
topic Regular Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8261468/
https://www.ncbi.nlm.nih.gov/pubmed/34277335
http://dx.doi.org/10.1016/j.ijppaw.2021.06.004
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