Global, regional, and cryptic population structure in a high gene-flow transatlantic fish.
Lumpfish (Cyclopterus lumpus) is a transatlantic marine fish displaying large population sizes and a high potential for dispersal and gene-flow. These features are expected to result in weak population structure. Here, we investigated population genetic structure of lumpfish throughout its natural d...
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ftdoajarticles:oai:doaj.org/article:84e3c027b33a4955a04e4d3532af5cc7 2023-06-11T04:10:34+02:00 Global, regional, and cryptic population structure in a high gene-flow transatlantic fish. Eeva Jansson Ellika Faust Dorte Bekkevold María Quintela Caroline Durif Kim Tallaksen Halvorsen Geir Dahle Christophe Pampoulie James Kennedy Benjamin Whittaker Laila Unneland Søren Post Carl André Kevin A Glover 2023-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0283351 https://doaj.org/article/84e3c027b33a4955a04e4d3532af5cc7 EN eng Public Library of Science (PLoS) https://doi.org/10.1371/journal.pone.0283351 https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0283351 https://doaj.org/article/84e3c027b33a4955a04e4d3532af5cc7 PLoS ONE, Vol 18, Iss 3, p e0283351 (2023) Medicine R Science Q article 2023 ftdoajarticles https://doi.org/10.1371/journal.pone.0283351 2023-04-23T00:32:06Z Lumpfish (Cyclopterus lumpus) is a transatlantic marine fish displaying large population sizes and a high potential for dispersal and gene-flow. These features are expected to result in weak population structure. Here, we investigated population genetic structure of lumpfish throughout its natural distribution in the North Atlantic using two approaches: I) 4,393 genome wide SNPs and 95 individuals from 10 locations, and II) 139 discriminatory SNPs and 1,669 individuals from 40 locations. Both approaches identified extensive population genetic structuring with a major split between the East and West Atlantic and a distinct Baltic Sea population, as well as further differentiation of lumpfish from the English Channel, Iceland, and Greenland. The discriminatory loci displayed ~2-5 times higher divergence than the genome wide approach, revealing further evidence of local population substructures. Lumpfish from Isfjorden in Svalbard were highly distinct but resembled most fish from Greenland. The Kattegat area in the Baltic transition zone, formed a previously undescribed distinct genetic group. Also, further subdivision was detected within North America, Iceland, West Greenland, Barents Sea, and Norway. Although lumpfish have considerable potential for dispersal and gene-flow, the observed high levels of population structuring throughout the Atlantic suggests that this species may have a natal homing behavior and local populations with adaptive differences. This fine-scale population structure calls for consideration when defining management units for exploitation of lumpfish stocks and in decisions related to sourcing and moving lumpfish for cleaner fish use in salmonid aquaculture. Article in Journal/Newspaper Barents Sea Greenland Iceland Isfjord* Isfjorden North Atlantic Svalbard Directory of Open Access Journals: DOAJ Articles Barents Sea Greenland Kattegat ENVELOPE(9.692,9.692,63.563,63.563) Norway Svalbard PLOS ONE 18 3 e0283351 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Eeva Jansson Ellika Faust Dorte Bekkevold María Quintela Caroline Durif Kim Tallaksen Halvorsen Geir Dahle Christophe Pampoulie James Kennedy Benjamin Whittaker Laila Unneland Søren Post Carl André Kevin A Glover Global, regional, and cryptic population structure in a high gene-flow transatlantic fish. |
topic_facet |
Medicine R Science Q |
description |
Lumpfish (Cyclopterus lumpus) is a transatlantic marine fish displaying large population sizes and a high potential for dispersal and gene-flow. These features are expected to result in weak population structure. Here, we investigated population genetic structure of lumpfish throughout its natural distribution in the North Atlantic using two approaches: I) 4,393 genome wide SNPs and 95 individuals from 10 locations, and II) 139 discriminatory SNPs and 1,669 individuals from 40 locations. Both approaches identified extensive population genetic structuring with a major split between the East and West Atlantic and a distinct Baltic Sea population, as well as further differentiation of lumpfish from the English Channel, Iceland, and Greenland. The discriminatory loci displayed ~2-5 times higher divergence than the genome wide approach, revealing further evidence of local population substructures. Lumpfish from Isfjorden in Svalbard were highly distinct but resembled most fish from Greenland. The Kattegat area in the Baltic transition zone, formed a previously undescribed distinct genetic group. Also, further subdivision was detected within North America, Iceland, West Greenland, Barents Sea, and Norway. Although lumpfish have considerable potential for dispersal and gene-flow, the observed high levels of population structuring throughout the Atlantic suggests that this species may have a natal homing behavior and local populations with adaptive differences. This fine-scale population structure calls for consideration when defining management units for exploitation of lumpfish stocks and in decisions related to sourcing and moving lumpfish for cleaner fish use in salmonid aquaculture. |
format |
Article in Journal/Newspaper |
author |
Eeva Jansson Ellika Faust Dorte Bekkevold María Quintela Caroline Durif Kim Tallaksen Halvorsen Geir Dahle Christophe Pampoulie James Kennedy Benjamin Whittaker Laila Unneland Søren Post Carl André Kevin A Glover |
author_facet |
Eeva Jansson Ellika Faust Dorte Bekkevold María Quintela Caroline Durif Kim Tallaksen Halvorsen Geir Dahle Christophe Pampoulie James Kennedy Benjamin Whittaker Laila Unneland Søren Post Carl André Kevin A Glover |
author_sort |
Eeva Jansson |
title |
Global, regional, and cryptic population structure in a high gene-flow transatlantic fish. |
title_short |
Global, regional, and cryptic population structure in a high gene-flow transatlantic fish. |
title_full |
Global, regional, and cryptic population structure in a high gene-flow transatlantic fish. |
title_fullStr |
Global, regional, and cryptic population structure in a high gene-flow transatlantic fish. |
title_full_unstemmed |
Global, regional, and cryptic population structure in a high gene-flow transatlantic fish. |
title_sort |
global, regional, and cryptic population structure in a high gene-flow transatlantic fish. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2023 |
url |
https://doi.org/10.1371/journal.pone.0283351 https://doaj.org/article/84e3c027b33a4955a04e4d3532af5cc7 |
long_lat |
ENVELOPE(9.692,9.692,63.563,63.563) |
geographic |
Barents Sea Greenland Kattegat Norway Svalbard |
geographic_facet |
Barents Sea Greenland Kattegat Norway Svalbard |
genre |
Barents Sea Greenland Iceland Isfjord* Isfjorden North Atlantic Svalbard |
genre_facet |
Barents Sea Greenland Iceland Isfjord* Isfjorden North Atlantic Svalbard |
op_source |
PLoS ONE, Vol 18, Iss 3, p e0283351 (2023) |
op_relation |
https://doi.org/10.1371/journal.pone.0283351 https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0283351 https://doaj.org/article/84e3c027b33a4955a04e4d3532af5cc7 |
op_doi |
https://doi.org/10.1371/journal.pone.0283351 |
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PLOS ONE |
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18 |
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3 |
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