Evolution at two time frames: ancient structural variants involved in post-glacial divergence of the European plaice ( Pleuronectes platessa )
Changing environmental conditions can lead to population diversification through differential selection on standing genetic variation. Structural variant (SV) polymorphisms provide examples of ancient alleles that in time become associated with novel environmental gradients. The European plaice ( Pl...
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ftdtupubl:oai:pure.atira.dk:publications/2829baf2-df82-4746-a79e-41c69b73f6e8 2024-06-23T07:55:23+00:00 Evolution at two time frames: ancient structural variants involved in post-glacial divergence of the European plaice ( Pleuronectes platessa ) Le Moan, Alan Jacques Bekkevold, Dorte Hansen, Jakob Hemmer 2021 application/pdf https://orbit.dtu.dk/en/publications/2829baf2-df82-4746-a79e-41c69b73f6e8 https://doi.org/10.1038/s41437-020-00389-3 https://backend.orbit.dtu.dk/ws/files/269917873/662577.full.pdf eng eng https://orbit.dtu.dk/en/publications/2829baf2-df82-4746-a79e-41c69b73f6e8 info:eu-repo/semantics/closedAccess Le Moan , A J , Bekkevold , D & Hansen , J H 2021 , ' Evolution at two time frames: ancient structural variants involved in post-glacial divergence of the European plaice ( Pleuronectes platessa ) ' , Heredity , vol. 126 , pp. 668-683 . https://doi.org/10.1038/s41437-020-00389-3 /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2021 ftdtupubl https://doi.org/10.1038/s41437-020-00389-3 2024-06-11T14:58:58Z Changing environmental conditions can lead to population diversification through differential selection on standing genetic variation. Structural variant (SV) polymorphisms provide examples of ancient alleles that in time become associated with novel environmental gradients. The European plaice ( Pleuronectes platessa ) is a marine flatfish showing large allele-frequency differences at two putative SVs associated with environmental variation. In this study, we explored the contribution of these SVs to population structure across the North East Atlantic. We compared genome-wide population structure using sets of RAD-sequencing SNPs with the spatial structure of the SVs. We found that in contrast to the rest of the genome, the SVs were only weakly associated with an isolation-by-distance pattern. Indeed, both SVs showed important variation in haplogroup frequencies, with the same haplogroup increasing both along the salinity gradient of the Baltic Sea, and found in high frequency in the northern-range margin of the Atlantic. Phylogenetic analyses suggested that the SV alleles are much older than the age of the Baltic Sea itself. These results suggest that the SVs are older than the age of the environmental gradients with which they currently co-vary. Altogether, our results suggest that the plaice SVs were shaped by evolutionary processes occurring at two time frames, firstly following their origin, ancient spread and maintenance in the ancestral populations, and secondly related to their current association with more recently formed environmental gradients such as those found in the North Sea-Baltic Sea transition zone. Article in Journal/Newspaper North East Atlantic Technical University of Denmark: DTU Orbit Heredity 126 4 668 683 |
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Technical University of Denmark: DTU Orbit |
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English |
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/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
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/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Le Moan, Alan Jacques Bekkevold, Dorte Hansen, Jakob Hemmer Evolution at two time frames: ancient structural variants involved in post-glacial divergence of the European plaice ( Pleuronectes platessa ) |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
Changing environmental conditions can lead to population diversification through differential selection on standing genetic variation. Structural variant (SV) polymorphisms provide examples of ancient alleles that in time become associated with novel environmental gradients. The European plaice ( Pleuronectes platessa ) is a marine flatfish showing large allele-frequency differences at two putative SVs associated with environmental variation. In this study, we explored the contribution of these SVs to population structure across the North East Atlantic. We compared genome-wide population structure using sets of RAD-sequencing SNPs with the spatial structure of the SVs. We found that in contrast to the rest of the genome, the SVs were only weakly associated with an isolation-by-distance pattern. Indeed, both SVs showed important variation in haplogroup frequencies, with the same haplogroup increasing both along the salinity gradient of the Baltic Sea, and found in high frequency in the northern-range margin of the Atlantic. Phylogenetic analyses suggested that the SV alleles are much older than the age of the Baltic Sea itself. These results suggest that the SVs are older than the age of the environmental gradients with which they currently co-vary. Altogether, our results suggest that the plaice SVs were shaped by evolutionary processes occurring at two time frames, firstly following their origin, ancient spread and maintenance in the ancestral populations, and secondly related to their current association with more recently formed environmental gradients such as those found in the North Sea-Baltic Sea transition zone. |
format |
Article in Journal/Newspaper |
author |
Le Moan, Alan Jacques Bekkevold, Dorte Hansen, Jakob Hemmer |
author_facet |
Le Moan, Alan Jacques Bekkevold, Dorte Hansen, Jakob Hemmer |
author_sort |
Le Moan, Alan Jacques |
title |
Evolution at two time frames: ancient structural variants involved in post-glacial divergence of the European plaice ( Pleuronectes platessa ) |
title_short |
Evolution at two time frames: ancient structural variants involved in post-glacial divergence of the European plaice ( Pleuronectes platessa ) |
title_full |
Evolution at two time frames: ancient structural variants involved in post-glacial divergence of the European plaice ( Pleuronectes platessa ) |
title_fullStr |
Evolution at two time frames: ancient structural variants involved in post-glacial divergence of the European plaice ( Pleuronectes platessa ) |
title_full_unstemmed |
Evolution at two time frames: ancient structural variants involved in post-glacial divergence of the European plaice ( Pleuronectes platessa ) |
title_sort |
evolution at two time frames: ancient structural variants involved in post-glacial divergence of the european plaice ( pleuronectes platessa ) |
publishDate |
2021 |
url |
https://orbit.dtu.dk/en/publications/2829baf2-df82-4746-a79e-41c69b73f6e8 https://doi.org/10.1038/s41437-020-00389-3 https://backend.orbit.dtu.dk/ws/files/269917873/662577.full.pdf |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_source |
Le Moan , A J , Bekkevold , D & Hansen , J H 2021 , ' Evolution at two time frames: ancient structural variants involved in post-glacial divergence of the European plaice ( Pleuronectes platessa ) ' , Heredity , vol. 126 , pp. 668-683 . https://doi.org/10.1038/s41437-020-00389-3 |
op_relation |
https://orbit.dtu.dk/en/publications/2829baf2-df82-4746-a79e-41c69b73f6e8 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1038/s41437-020-00389-3 |
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