Evidence of hybridization between genetically distinct Baltic cod stocks during peak population abundance(s)
Range expansions can lead to increased contact of divergent populations, thus increasing the potential of hybridization events. Whether viable hybrids are produced will most likely depend on the level of genomic divergence and associated genomic incompatibilities between the different entities as we...
Published in: | Evolutionary Applications |
---|---|
Main Authors: | , , , , , , , , , , , , , |
Format: | Text |
Language: | English |
Published: |
John Wiley and Sons Inc.
2023
|
Subjects: | |
Online Access: | http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10363836/ http://www.ncbi.nlm.nih.gov/pubmed/37492148 https://doi.org/10.1111/eva.13575 |
id |
ftpubmed:oai:pubmedcentral.nih.gov:10363836 |
---|---|
record_format |
openpolar |
spelling |
ftpubmed:oai:pubmedcentral.nih.gov:10363836 2023-08-20T04:06:38+02:00 Evidence of hybridization between genetically distinct Baltic cod stocks during peak population abundance(s) Helmerson, Cecilia Weist, Peggy Brieuc, Marine Servane Ono Maurstad, Marius F. Schade, Franziska Maria Dierking, Jan Petereit, Christoph Knutsen, Halvor Metcalfe, Julian Righton, David André, Carl Krumme, Uwe Jentoft, Sissel Hanel, Reinhold 2023-07-06 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10363836/ http://www.ncbi.nlm.nih.gov/pubmed/37492148 https://doi.org/10.1111/eva.13575 en eng John Wiley and Sons Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10363836/ http://www.ncbi.nlm.nih.gov/pubmed/37492148 http://dx.doi.org/10.1111/eva.13575 © 2023 The Authors. Evolutionary Applications published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. Evol Appl Original Articles Text 2023 ftpubmed https://doi.org/10.1111/eva.13575 2023-07-30T00:48:53Z Range expansions can lead to increased contact of divergent populations, thus increasing the potential of hybridization events. Whether viable hybrids are produced will most likely depend on the level of genomic divergence and associated genomic incompatibilities between the different entities as well as environmental conditions. By taking advantage of historical Baltic cod (Gadus morhua) otolith samples combined with genotyping and whole genome sequencing, we here investigate the genetic impact of the increased spawning stock biomass of the eastern Baltic cod stock in the mid 1980s. The eastern Baltic cod is genetically highly differentiated from the adjacent western Baltic cod and locally adapted to the brackish environmental conditions in the deeper Eastern basins of the Baltic Sea unsuitable for its marine counterparts. Our genotyping results show an increased proportion of eastern Baltic cod in western Baltic areas (Mecklenburg Bay and Arkona Basin)—indicative of a range expansion westwards—during the peak population abundance in the 1980s. Additionally, we detect high frequencies of potential hybrids (including F1, F2 and backcrosses), verified by whole genome sequencing data for a subset of individuals. Analysis of mitochondrial genomes further indicates directional gene flow from eastern Baltic cod males to western Baltic cod females. Our findings unravel that increased overlap in distribution can promote hybridization between highly divergent populations and that the hybrids can be viable and survive under specific and favourable environmental conditions. However, the observed hybridization had seemingly no long‐lasting impact on the continuous separation and genetic differentiation between the unique Baltic cod stocks. Text Gadus morhua PubMed Central (PMC) Evolutionary Applications 16 7 1359 1376 |
institution |
Open Polar |
collection |
PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Original Articles |
spellingShingle |
Original Articles Helmerson, Cecilia Weist, Peggy Brieuc, Marine Servane Ono Maurstad, Marius F. Schade, Franziska Maria Dierking, Jan Petereit, Christoph Knutsen, Halvor Metcalfe, Julian Righton, David André, Carl Krumme, Uwe Jentoft, Sissel Hanel, Reinhold Evidence of hybridization between genetically distinct Baltic cod stocks during peak population abundance(s) |
topic_facet |
Original Articles |
description |
Range expansions can lead to increased contact of divergent populations, thus increasing the potential of hybridization events. Whether viable hybrids are produced will most likely depend on the level of genomic divergence and associated genomic incompatibilities between the different entities as well as environmental conditions. By taking advantage of historical Baltic cod (Gadus morhua) otolith samples combined with genotyping and whole genome sequencing, we here investigate the genetic impact of the increased spawning stock biomass of the eastern Baltic cod stock in the mid 1980s. The eastern Baltic cod is genetically highly differentiated from the adjacent western Baltic cod and locally adapted to the brackish environmental conditions in the deeper Eastern basins of the Baltic Sea unsuitable for its marine counterparts. Our genotyping results show an increased proportion of eastern Baltic cod in western Baltic areas (Mecklenburg Bay and Arkona Basin)—indicative of a range expansion westwards—during the peak population abundance in the 1980s. Additionally, we detect high frequencies of potential hybrids (including F1, F2 and backcrosses), verified by whole genome sequencing data for a subset of individuals. Analysis of mitochondrial genomes further indicates directional gene flow from eastern Baltic cod males to western Baltic cod females. Our findings unravel that increased overlap in distribution can promote hybridization between highly divergent populations and that the hybrids can be viable and survive under specific and favourable environmental conditions. However, the observed hybridization had seemingly no long‐lasting impact on the continuous separation and genetic differentiation between the unique Baltic cod stocks. |
format |
Text |
author |
Helmerson, Cecilia Weist, Peggy Brieuc, Marine Servane Ono Maurstad, Marius F. Schade, Franziska Maria Dierking, Jan Petereit, Christoph Knutsen, Halvor Metcalfe, Julian Righton, David André, Carl Krumme, Uwe Jentoft, Sissel Hanel, Reinhold |
author_facet |
Helmerson, Cecilia Weist, Peggy Brieuc, Marine Servane Ono Maurstad, Marius F. Schade, Franziska Maria Dierking, Jan Petereit, Christoph Knutsen, Halvor Metcalfe, Julian Righton, David André, Carl Krumme, Uwe Jentoft, Sissel Hanel, Reinhold |
author_sort |
Helmerson, Cecilia |
title |
Evidence of hybridization between genetically distinct Baltic cod stocks during peak population abundance(s) |
title_short |
Evidence of hybridization between genetically distinct Baltic cod stocks during peak population abundance(s) |
title_full |
Evidence of hybridization between genetically distinct Baltic cod stocks during peak population abundance(s) |
title_fullStr |
Evidence of hybridization between genetically distinct Baltic cod stocks during peak population abundance(s) |
title_full_unstemmed |
Evidence of hybridization between genetically distinct Baltic cod stocks during peak population abundance(s) |
title_sort |
evidence of hybridization between genetically distinct baltic cod stocks during peak population abundance(s) |
publisher |
John Wiley and Sons Inc. |
publishDate |
2023 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10363836/ http://www.ncbi.nlm.nih.gov/pubmed/37492148 https://doi.org/10.1111/eva.13575 |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
Evol Appl |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10363836/ http://www.ncbi.nlm.nih.gov/pubmed/37492148 http://dx.doi.org/10.1111/eva.13575 |
op_rights |
© 2023 The Authors. Evolutionary Applications published by John Wiley & Sons Ltd. https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_doi |
https://doi.org/10.1111/eva.13575 |
container_title |
Evolutionary Applications |
container_volume |
16 |
container_issue |
7 |
container_start_page |
1359 |
op_container_end_page |
1376 |
_version_ |
1774717861270388736 |