Genetic population structure of turbot ( Scophthalmus maximus L.) supports the presence of multiple hybrid zones for marine fishes in the transition zone between the Baltic Sea and the North Sea
Abstract Genetic population structure of turbot ( Scophthalmus maximus L.) in the Northeast Atlantic was investigated using eight highly variable microsatellite loci. In total 706 individuals from eight locations with temporal replicates were assayed, covering an area from the French Bay of Biscay t...
Published in: | Molecular Ecology |
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crwiley:10.1046/j.1365-294x.2004.02097.x 2024-09-09T19:59:06+00:00 Genetic population structure of turbot ( Scophthalmus maximus L.) supports the presence of multiple hybrid zones for marine fishes in the transition zone between the Baltic Sea and the North Sea Nielsen, Einar E. Nielsen, Peter H. Meldrup, Dorte Hansen, Michael M. 2004 http://dx.doi.org/10.1046/j.1365-294x.2004.02097.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-294X.2004.02097.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-294X.2004.02097.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Molecular Ecology volume 13, issue 3, page 585-595 ISSN 0962-1083 1365-294X journal-article 2004 crwiley https://doi.org/10.1046/j.1365-294x.2004.02097.x 2024-08-27T04:27:09Z Abstract Genetic population structure of turbot ( Scophthalmus maximus L.) in the Northeast Atlantic was investigated using eight highly variable microsatellite loci. In total 706 individuals from eight locations with temporal replicates were assayed, covering an area from the French Bay of Biscay to the Aaland archipelago in the Baltic Sea. In contrast to previous genetic studies of turbot, we found significant genetic differentiation among samples with a maximum pairwise F ST of 0.032. Limited or no genetic differentiation was found among samples within the Atlantic/North Sea area and within the Baltic Sea, suggesting high gene flow among populations in these areas. In contrast, there was a sharp cline in genetic differentiation going from the low saline Baltic Sea to the high saline North Sea. The data were explained best by two divergent populations connected by a hybrid zone; however, a mechanical mixing model could not be ruled out. A significant part of the genetic variance could be ascribed to variation among years within locality. Nevertheless, the population structure was relatively stable over time, suggesting that the observed pattern of genetic differentiation is biologically significant. This study suggests that hybrid zones are a common phenomenon for marine fishes in the transition area between the North Sea and the Baltic Sea and highlights the importance of using interspecific comparisons for inferring population structure in high gene flow species such as most marine fishes. Article in Journal/Newspaper Northeast Atlantic Scophthalmus maximus Turbot Wiley Online Library French Bay ENVELOPE(-55.498,-55.498,51.367,51.367) Molecular Ecology 13 3 585 595 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Genetic population structure of turbot ( Scophthalmus maximus L.) in the Northeast Atlantic was investigated using eight highly variable microsatellite loci. In total 706 individuals from eight locations with temporal replicates were assayed, covering an area from the French Bay of Biscay to the Aaland archipelago in the Baltic Sea. In contrast to previous genetic studies of turbot, we found significant genetic differentiation among samples with a maximum pairwise F ST of 0.032. Limited or no genetic differentiation was found among samples within the Atlantic/North Sea area and within the Baltic Sea, suggesting high gene flow among populations in these areas. In contrast, there was a sharp cline in genetic differentiation going from the low saline Baltic Sea to the high saline North Sea. The data were explained best by two divergent populations connected by a hybrid zone; however, a mechanical mixing model could not be ruled out. A significant part of the genetic variance could be ascribed to variation among years within locality. Nevertheless, the population structure was relatively stable over time, suggesting that the observed pattern of genetic differentiation is biologically significant. This study suggests that hybrid zones are a common phenomenon for marine fishes in the transition area between the North Sea and the Baltic Sea and highlights the importance of using interspecific comparisons for inferring population structure in high gene flow species such as most marine fishes. |
format |
Article in Journal/Newspaper |
author |
Nielsen, Einar E. Nielsen, Peter H. Meldrup, Dorte Hansen, Michael M. |
spellingShingle |
Nielsen, Einar E. Nielsen, Peter H. Meldrup, Dorte Hansen, Michael M. Genetic population structure of turbot ( Scophthalmus maximus L.) supports the presence of multiple hybrid zones for marine fishes in the transition zone between the Baltic Sea and the North Sea |
author_facet |
Nielsen, Einar E. Nielsen, Peter H. Meldrup, Dorte Hansen, Michael M. |
author_sort |
Nielsen, Einar E. |
title |
Genetic population structure of turbot ( Scophthalmus maximus L.) supports the presence of multiple hybrid zones for marine fishes in the transition zone between the Baltic Sea and the North Sea |
title_short |
Genetic population structure of turbot ( Scophthalmus maximus L.) supports the presence of multiple hybrid zones for marine fishes in the transition zone between the Baltic Sea and the North Sea |
title_full |
Genetic population structure of turbot ( Scophthalmus maximus L.) supports the presence of multiple hybrid zones for marine fishes in the transition zone between the Baltic Sea and the North Sea |
title_fullStr |
Genetic population structure of turbot ( Scophthalmus maximus L.) supports the presence of multiple hybrid zones for marine fishes in the transition zone between the Baltic Sea and the North Sea |
title_full_unstemmed |
Genetic population structure of turbot ( Scophthalmus maximus L.) supports the presence of multiple hybrid zones for marine fishes in the transition zone between the Baltic Sea and the North Sea |
title_sort |
genetic population structure of turbot ( scophthalmus maximus l.) supports the presence of multiple hybrid zones for marine fishes in the transition zone between the baltic sea and the north sea |
publisher |
Wiley |
publishDate |
2004 |
url |
http://dx.doi.org/10.1046/j.1365-294x.2004.02097.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1365-294X.2004.02097.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1365-294X.2004.02097.x |
long_lat |
ENVELOPE(-55.498,-55.498,51.367,51.367) |
geographic |
French Bay |
geographic_facet |
French Bay |
genre |
Northeast Atlantic Scophthalmus maximus Turbot |
genre_facet |
Northeast Atlantic Scophthalmus maximus Turbot |
op_source |
Molecular Ecology volume 13, issue 3, page 585-595 ISSN 0962-1083 1365-294X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1365-294x.2004.02097.x |
container_title |
Molecular Ecology |
container_volume |
13 |
container_issue |
3 |
container_start_page |
585 |
op_container_end_page |
595 |
_version_ |
1809930246441402368 |