Population Genetic Structure of Anisakis simplex Infecting the European Hake from North East Atlantic Fishing Grounds
The European hake, one of the most commercially valuable species in ICES fishing areas, is considered an important neglected source of zoonotic risk by nematode parasites belonging to the genus Anisakis. Merluccius merluccius is, by far, the most important host of Anisakis spp. at the European fishi...
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ftmdpi:oai:mdpi.com:/2076-2615/13/2/197/ 2023-08-20T04:08:36+02:00 Population Genetic Structure of Anisakis simplex Infecting the European Hake from North East Atlantic Fishing Grounds Andrea Ramilo Helena Rodríguez Santiago Pascual Ángel F. González Elvira Abollo agris 2023-01-04 application/pdf https://doi.org/10.3390/ani13020197 EN eng Multidisciplinary Digital Publishing Institute Veterinary Clinical Studies https://dx.doi.org/10.3390/ani13020197 https://creativecommons.org/licenses/by/4.0/ Animals; Volume 13; Issue 2; Pages: 197 Anisakis simplex Anisakis pegreffii hybrid genotype European hake genetic structure Text 2023 ftmdpi https://doi.org/10.3390/ani13020197 2023-08-01T08:08:13Z The European hake, one of the most commercially valuable species in ICES fishing areas, is considered an important neglected source of zoonotic risk by nematode parasites belonging to the genus Anisakis. Merluccius merluccius is, by far, the most important host of Anisakis spp. at the European fishing grounds, in terms of demographic infection values, and carries the highest parasite burden. These high parasite population densities within an individual fish host offer a chance to explore new sources of variations for the genetic structure of Anisakis spp. populations. A total of 873 Anisakis spp. third-stage larvae, originally sampled from viscera and muscular sections of hake collected at ten fishing grounds, were primarily identified using ITS rDNA region as molecular marker. After that, we used mtDNA cox2 gene to reveal the high haplotype diversity and the lack of genetic structure for A. simplex. Dominant haplotypes were shared among the different fishing areas and fish sections analyzed. Results indicate a clear connection of A. simplex from European hake along the Northern North Sea to the Portuguese coast, constituting a single genetic population but revealing a certain level of genetic sub-structuring on the Northwest coast of Scotland. This study also provides useful information to advance the understanding of parasite speciation to different fish host tissues or microenvironments. Text North East Atlantic MDPI Open Access Publishing Hake ENVELOPE(15.612,15.612,66.797,66.797) Animals 13 2 197 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
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ftmdpi |
language |
English |
topic |
Anisakis simplex Anisakis pegreffii hybrid genotype European hake genetic structure |
spellingShingle |
Anisakis simplex Anisakis pegreffii hybrid genotype European hake genetic structure Andrea Ramilo Helena Rodríguez Santiago Pascual Ángel F. González Elvira Abollo Population Genetic Structure of Anisakis simplex Infecting the European Hake from North East Atlantic Fishing Grounds |
topic_facet |
Anisakis simplex Anisakis pegreffii hybrid genotype European hake genetic structure |
description |
The European hake, one of the most commercially valuable species in ICES fishing areas, is considered an important neglected source of zoonotic risk by nematode parasites belonging to the genus Anisakis. Merluccius merluccius is, by far, the most important host of Anisakis spp. at the European fishing grounds, in terms of demographic infection values, and carries the highest parasite burden. These high parasite population densities within an individual fish host offer a chance to explore new sources of variations for the genetic structure of Anisakis spp. populations. A total of 873 Anisakis spp. third-stage larvae, originally sampled from viscera and muscular sections of hake collected at ten fishing grounds, were primarily identified using ITS rDNA region as molecular marker. After that, we used mtDNA cox2 gene to reveal the high haplotype diversity and the lack of genetic structure for A. simplex. Dominant haplotypes were shared among the different fishing areas and fish sections analyzed. Results indicate a clear connection of A. simplex from European hake along the Northern North Sea to the Portuguese coast, constituting a single genetic population but revealing a certain level of genetic sub-structuring on the Northwest coast of Scotland. This study also provides useful information to advance the understanding of parasite speciation to different fish host tissues or microenvironments. |
format |
Text |
author |
Andrea Ramilo Helena Rodríguez Santiago Pascual Ángel F. González Elvira Abollo |
author_facet |
Andrea Ramilo Helena Rodríguez Santiago Pascual Ángel F. González Elvira Abollo |
author_sort |
Andrea Ramilo |
title |
Population Genetic Structure of Anisakis simplex Infecting the European Hake from North East Atlantic Fishing Grounds |
title_short |
Population Genetic Structure of Anisakis simplex Infecting the European Hake from North East Atlantic Fishing Grounds |
title_full |
Population Genetic Structure of Anisakis simplex Infecting the European Hake from North East Atlantic Fishing Grounds |
title_fullStr |
Population Genetic Structure of Anisakis simplex Infecting the European Hake from North East Atlantic Fishing Grounds |
title_full_unstemmed |
Population Genetic Structure of Anisakis simplex Infecting the European Hake from North East Atlantic Fishing Grounds |
title_sort |
population genetic structure of anisakis simplex infecting the european hake from north east atlantic fishing grounds |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2023 |
url |
https://doi.org/10.3390/ani13020197 |
op_coverage |
agris |
long_lat |
ENVELOPE(15.612,15.612,66.797,66.797) |
geographic |
Hake |
geographic_facet |
Hake |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_source |
Animals; Volume 13; Issue 2; Pages: 197 |
op_relation |
Veterinary Clinical Studies https://dx.doi.org/10.3390/ani13020197 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/ani13020197 |
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Animals |
container_volume |
13 |
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2 |
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197 |
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1774720961702002688 |