Three chromosomal rearrangements promote genomic divergence between migratory and stationary ecotypes of Atlantic cod
- Identification of genome-wide patterns of divergence provides insight on how genomes are influenced by selection and can reveal the potential for local adaptation in spatially structured populations. In Atlantic cod – historically a major marine resource – Northeast-Arctic- and Norwegian coastal c...
Published in: | Scientific Reports |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Nature Publishing Group
2016
|
Subjects: | |
Online Access: | http://hdl.handle.net/11250/2398319 https://doi.org/10.1038/srep23246 |
id |
ftimr:oai:imr.brage.unit.no:11250/2398319 |
---|---|
record_format |
openpolar |
spelling |
ftimr:oai:imr.brage.unit.no:11250/2398319 2023-05-15T15:08:24+02:00 Three chromosomal rearrangements promote genomic divergence between migratory and stationary ecotypes of Atlantic cod Berg, Paul Ragnar Star, Bastiaan Pampoulie, Christophe Sodeland, Marte Barth, Julia Maria Isis Knutsen, Halvor Jakobsen, Kjetill Sigurd Jentoft, Sissel 2016-08-03T11:45:56Z application/pdf http://hdl.handle.net/11250/2398319 https://doi.org/10.1038/srep23246 eng eng Nature Publishing Group Scientific Reports 2016, 6 urn:issn:2045-2322 http://hdl.handle.net/11250/2398319 https://doi.org/10.1038/srep23246 cristin:1347220 Navngivelse 3.0 Norge http://creativecommons.org/licenses/by/3.0/no/ CC-BY 12 s. Scientific Reports VDP::Matematikk og naturvitenskap: 400::Basale biofag: 470::Genetikk og genomikk: 474 VDP::Mathematics and natural scienses: 400::Basic biosciences: 470::Genetics and genomics: 474 Journal article Peer reviewed 2016 ftimr https://doi.org/10.1038/srep23246 2021-09-23T20:14:38Z - Identification of genome-wide patterns of divergence provides insight on how genomes are influenced by selection and can reveal the potential for local adaptation in spatially structured populations. In Atlantic cod – historically a major marine resource – Northeast-Arctic- and Norwegian coastal cod are recognized by fundamental differences in migratory and non-migratory behavior, respectively. However, the genomic architecture underlying such behavioral ecotypes is unclear. Here, we have analyzed more than 8.000 polymorphic SNPs distributed throughout all 23 linkage groups and show that loci putatively under selection are localized within three distinct genomic regions, each of several megabases long, covering approximately 4% of the Atlantic cod genome. These regions likely represent genomic inversions. The frequency of these distinct regions differ markedly between the ecotypes, spawning in the vicinity of each other, which contrasts with the low level of divergence in the rest of the genome. The observed patterns strongly suggest that these chromosomal rearrangements are instrumental in local adaptation and separation of Atlantic cod populations, leaving footprints of large genomic regions under selection. Our findings demonstrate the power of using genomic information in further understanding the population dynamics and defining management units in one of the world’s most economically important marine resources. Article in Journal/Newspaper Arctic atlantic cod Institute for Marine Research: Brage IMR Arctic Scientific Reports 6 1 |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
VDP::Matematikk og naturvitenskap: 400::Basale biofag: 470::Genetikk og genomikk: 474 VDP::Mathematics and natural scienses: 400::Basic biosciences: 470::Genetics and genomics: 474 |
spellingShingle |
VDP::Matematikk og naturvitenskap: 400::Basale biofag: 470::Genetikk og genomikk: 474 VDP::Mathematics and natural scienses: 400::Basic biosciences: 470::Genetics and genomics: 474 Berg, Paul Ragnar Star, Bastiaan Pampoulie, Christophe Sodeland, Marte Barth, Julia Maria Isis Knutsen, Halvor Jakobsen, Kjetill Sigurd Jentoft, Sissel Three chromosomal rearrangements promote genomic divergence between migratory and stationary ecotypes of Atlantic cod |
topic_facet |
VDP::Matematikk og naturvitenskap: 400::Basale biofag: 470::Genetikk og genomikk: 474 VDP::Mathematics and natural scienses: 400::Basic biosciences: 470::Genetics and genomics: 474 |
description |
- Identification of genome-wide patterns of divergence provides insight on how genomes are influenced by selection and can reveal the potential for local adaptation in spatially structured populations. In Atlantic cod – historically a major marine resource – Northeast-Arctic- and Norwegian coastal cod are recognized by fundamental differences in migratory and non-migratory behavior, respectively. However, the genomic architecture underlying such behavioral ecotypes is unclear. Here, we have analyzed more than 8.000 polymorphic SNPs distributed throughout all 23 linkage groups and show that loci putatively under selection are localized within three distinct genomic regions, each of several megabases long, covering approximately 4% of the Atlantic cod genome. These regions likely represent genomic inversions. The frequency of these distinct regions differ markedly between the ecotypes, spawning in the vicinity of each other, which contrasts with the low level of divergence in the rest of the genome. The observed patterns strongly suggest that these chromosomal rearrangements are instrumental in local adaptation and separation of Atlantic cod populations, leaving footprints of large genomic regions under selection. Our findings demonstrate the power of using genomic information in further understanding the population dynamics and defining management units in one of the world’s most economically important marine resources. |
format |
Article in Journal/Newspaper |
author |
Berg, Paul Ragnar Star, Bastiaan Pampoulie, Christophe Sodeland, Marte Barth, Julia Maria Isis Knutsen, Halvor Jakobsen, Kjetill Sigurd Jentoft, Sissel |
author_facet |
Berg, Paul Ragnar Star, Bastiaan Pampoulie, Christophe Sodeland, Marte Barth, Julia Maria Isis Knutsen, Halvor Jakobsen, Kjetill Sigurd Jentoft, Sissel |
author_sort |
Berg, Paul Ragnar |
title |
Three chromosomal rearrangements promote genomic divergence between migratory and stationary ecotypes of Atlantic cod |
title_short |
Three chromosomal rearrangements promote genomic divergence between migratory and stationary ecotypes of Atlantic cod |
title_full |
Three chromosomal rearrangements promote genomic divergence between migratory and stationary ecotypes of Atlantic cod |
title_fullStr |
Three chromosomal rearrangements promote genomic divergence between migratory and stationary ecotypes of Atlantic cod |
title_full_unstemmed |
Three chromosomal rearrangements promote genomic divergence between migratory and stationary ecotypes of Atlantic cod |
title_sort |
three chromosomal rearrangements promote genomic divergence between migratory and stationary ecotypes of atlantic cod |
publisher |
Nature Publishing Group |
publishDate |
2016 |
url |
http://hdl.handle.net/11250/2398319 https://doi.org/10.1038/srep23246 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic atlantic cod |
genre_facet |
Arctic atlantic cod |
op_source |
12 s. Scientific Reports |
op_relation |
Scientific Reports 2016, 6 urn:issn:2045-2322 http://hdl.handle.net/11250/2398319 https://doi.org/10.1038/srep23246 cristin:1347220 |
op_rights |
Navngivelse 3.0 Norge http://creativecommons.org/licenses/by/3.0/no/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/srep23246 |
container_title |
Scientific Reports |
container_volume |
6 |
container_issue |
1 |
_version_ |
1766339770658586624 |