Shared ancestral polymorphisms and chromosomal rearrangements as potential drivers of local adaptation in a marine fish
Abstract Gene flow has tremendous importance for local adaptation, by influencing the fate of de novo mutations, maintaining standing genetic variation and driving adaptive introgression. Furthermore, structural variation as chromosomal rearrangements may facilitate adaptation despite high gene flow...
Published in: | Molecular Ecology |
---|---|
Main Authors: | , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2020
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/mec.15499 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.15499 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.15499 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mec.15499 |
id |
crwiley:10.1111/mec.15499 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/mec.15499 2024-09-15T18:26:21+00:00 Shared ancestral polymorphisms and chromosomal rearrangements as potential drivers of local adaptation in a marine fish Cayuela, Hugo Rougemont, Quentin Laporte, Martin Mérot, Claire Normandeau, Eric Dorant, Yann Tørresen, Ole K. Hoff, Siv Nam Khang Jentoft, Sissel Sirois, Pascal Castonguay, Martin Jansen, Teunis Praebel, Kim Clément, Marie Bernatchez, Louis 2020 http://dx.doi.org/10.1111/mec.15499 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.15499 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.15499 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mec.15499 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Molecular Ecology volume 29, issue 13, page 2379-2398 ISSN 0962-1083 1365-294X journal-article 2020 crwiley https://doi.org/10.1111/mec.15499 2024-08-22T04:15:08Z Abstract Gene flow has tremendous importance for local adaptation, by influencing the fate of de novo mutations, maintaining standing genetic variation and driving adaptive introgression. Furthermore, structural variation as chromosomal rearrangements may facilitate adaptation despite high gene flow. However, our understanding of the evolutionary mechanisms impending or favouring local adaptation in the presence of gene flow is still limited to a restricted number of study systems. In this study, we examined how demographic history, shared ancestral polymorphism, and gene flow among glacial lineages contribute to local adaptation to sea conditions in a marine fish, the capelin ( Mallotus villosus ). We first assembled a 490‐Mbp draft genome of M. villosus to map our RAD sequence reads. Then, we used a large data set of genome‐wide single nucleotide polymorphisms (25,904 filtered SNPs) genotyped in 1,310 individuals collected from 31 spawning sites in the northwest Atlantic. We reconstructed the history of divergence among three glacial lineages and showed that they probably diverged from 3.8 to 1.8 million years ago and experienced secondary contacts. Within each lineage, our analyses provided evidence for large N e and high gene flow among spawning sites. Within the Northwest Atlantic lineage, we detected a polymorphic chromosomal rearrangement leading to the occurrence of three haplogroups. Genotype–environment associations revealed molecular signatures of local adaptation to environmental conditions prevailing at spawning sites. Our study also suggests that both shared polymorphisms among lineages, resulting from standing genetic variation or introgression, and chromosomal rearrangements may contribute to local adaptation in the presence of high gene flow. Article in Journal/Newspaper Northwest Atlantic Wiley Online Library Molecular Ecology 29 13 2379 2398 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Gene flow has tremendous importance for local adaptation, by influencing the fate of de novo mutations, maintaining standing genetic variation and driving adaptive introgression. Furthermore, structural variation as chromosomal rearrangements may facilitate adaptation despite high gene flow. However, our understanding of the evolutionary mechanisms impending or favouring local adaptation in the presence of gene flow is still limited to a restricted number of study systems. In this study, we examined how demographic history, shared ancestral polymorphism, and gene flow among glacial lineages contribute to local adaptation to sea conditions in a marine fish, the capelin ( Mallotus villosus ). We first assembled a 490‐Mbp draft genome of M. villosus to map our RAD sequence reads. Then, we used a large data set of genome‐wide single nucleotide polymorphisms (25,904 filtered SNPs) genotyped in 1,310 individuals collected from 31 spawning sites in the northwest Atlantic. We reconstructed the history of divergence among three glacial lineages and showed that they probably diverged from 3.8 to 1.8 million years ago and experienced secondary contacts. Within each lineage, our analyses provided evidence for large N e and high gene flow among spawning sites. Within the Northwest Atlantic lineage, we detected a polymorphic chromosomal rearrangement leading to the occurrence of three haplogroups. Genotype–environment associations revealed molecular signatures of local adaptation to environmental conditions prevailing at spawning sites. Our study also suggests that both shared polymorphisms among lineages, resulting from standing genetic variation or introgression, and chromosomal rearrangements may contribute to local adaptation in the presence of high gene flow. |
format |
Article in Journal/Newspaper |
author |
Cayuela, Hugo Rougemont, Quentin Laporte, Martin Mérot, Claire Normandeau, Eric Dorant, Yann Tørresen, Ole K. Hoff, Siv Nam Khang Jentoft, Sissel Sirois, Pascal Castonguay, Martin Jansen, Teunis Praebel, Kim Clément, Marie Bernatchez, Louis |
spellingShingle |
Cayuela, Hugo Rougemont, Quentin Laporte, Martin Mérot, Claire Normandeau, Eric Dorant, Yann Tørresen, Ole K. Hoff, Siv Nam Khang Jentoft, Sissel Sirois, Pascal Castonguay, Martin Jansen, Teunis Praebel, Kim Clément, Marie Bernatchez, Louis Shared ancestral polymorphisms and chromosomal rearrangements as potential drivers of local adaptation in a marine fish |
author_facet |
Cayuela, Hugo Rougemont, Quentin Laporte, Martin Mérot, Claire Normandeau, Eric Dorant, Yann Tørresen, Ole K. Hoff, Siv Nam Khang Jentoft, Sissel Sirois, Pascal Castonguay, Martin Jansen, Teunis Praebel, Kim Clément, Marie Bernatchez, Louis |
author_sort |
Cayuela, Hugo |
title |
Shared ancestral polymorphisms and chromosomal rearrangements as potential drivers of local adaptation in a marine fish |
title_short |
Shared ancestral polymorphisms and chromosomal rearrangements as potential drivers of local adaptation in a marine fish |
title_full |
Shared ancestral polymorphisms and chromosomal rearrangements as potential drivers of local adaptation in a marine fish |
title_fullStr |
Shared ancestral polymorphisms and chromosomal rearrangements as potential drivers of local adaptation in a marine fish |
title_full_unstemmed |
Shared ancestral polymorphisms and chromosomal rearrangements as potential drivers of local adaptation in a marine fish |
title_sort |
shared ancestral polymorphisms and chromosomal rearrangements as potential drivers of local adaptation in a marine fish |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1111/mec.15499 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.15499 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.15499 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mec.15499 |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
Molecular Ecology volume 29, issue 13, page 2379-2398 ISSN 0962-1083 1365-294X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/mec.15499 |
container_title |
Molecular Ecology |
container_volume |
29 |
container_issue |
13 |
container_start_page |
2379 |
op_container_end_page |
2398 |
_version_ |
1810466820034920448 |