The eastern migratory caribou: the role of genetic introgression in ecotype evolution
Understanding the evolutionary history of contemporary animal groups is essential for conservation and management of endangered species like caribou (Rangifer tarandus). In central Canada, the ranges of two caribou subspecies (barren-ground/woodland caribou) and two woodland caribou ecotypes (boreal...
Published in: | Royal Society Open Science |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
The Royal Society
2016
|
Subjects: | |
Online Access: | https://doi.org/10.1098/rsos.150469 https://doaj.org/article/14736e0926b349fbb30e1208d30a9f09 |
id |
ftdoajarticles:oai:doaj.org/article:14736e0926b349fbb30e1208d30a9f09 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:14736e0926b349fbb30e1208d30a9f09 2023-05-15T15:53:26+02:00 The eastern migratory caribou: the role of genetic introgression in ecotype evolution Cornelya F. C. Klütsch Micheline Manseau Vicki Trim Jean Polfus Paul J. Wilson 2016-01-01T00:00:00Z https://doi.org/10.1098/rsos.150469 https://doaj.org/article/14736e0926b349fbb30e1208d30a9f09 EN eng The Royal Society https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.150469 https://doaj.org/toc/2054-5703 2054-5703 doi:10.1098/rsos.150469 https://doaj.org/article/14736e0926b349fbb30e1208d30a9f09 Royal Society Open Science, Vol 3, Iss 2 (2016) approximate bayesian computation introgression ecotype secondary contact zone conservation species at risk Science Q article 2016 ftdoajarticles https://doi.org/10.1098/rsos.150469 2022-12-31T14:00:04Z Understanding the evolutionary history of contemporary animal groups is essential for conservation and management of endangered species like caribou (Rangifer tarandus). In central Canada, the ranges of two caribou subspecies (barren-ground/woodland caribou) and two woodland caribou ecotypes (boreal/eastern migratory) overlap. Our objectives were to reconstruct the evolutionary history of the eastern migratory ecotype and to assess the potential role of introgression in ecotype evolution. STRUCTURE analyses identified five higher order groups (i.e. three boreal caribou populations, eastern migratory ecotype and barren-ground). The evolutionary history of the eastern migratory ecotype was best explained by an early genetic introgression from barren-ground into a woodland caribou lineage during the Late Pleistocene and subsequent divergence of the eastern migratory ecotype during the Holocene. These results are consistent with the retreat of the Laurentide ice sheet and the colonization of the Hudson Bay coastal areas subsequent to the establishment of forest tundra vegetation approximately 7000 years ago. This historical reconstruction of the eastern migratory ecotype further supports its current classification as a conservation unit, specifically a Designatable Unit, under Canada’s Species at Risk Act. These findings have implications for other sub-specific contact zones for caribou and other North American species in conservation unit delineation. Article in Journal/Newspaper caribou Hudson Bay Ice Sheet Rangifer tarandus Tundra Directory of Open Access Journals: DOAJ Articles Hudson Bay Canada Hudson Royal Society Open Science 3 2 150469 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
approximate bayesian computation introgression ecotype secondary contact zone conservation species at risk Science Q |
spellingShingle |
approximate bayesian computation introgression ecotype secondary contact zone conservation species at risk Science Q Cornelya F. C. Klütsch Micheline Manseau Vicki Trim Jean Polfus Paul J. Wilson The eastern migratory caribou: the role of genetic introgression in ecotype evolution |
topic_facet |
approximate bayesian computation introgression ecotype secondary contact zone conservation species at risk Science Q |
description |
Understanding the evolutionary history of contemporary animal groups is essential for conservation and management of endangered species like caribou (Rangifer tarandus). In central Canada, the ranges of two caribou subspecies (barren-ground/woodland caribou) and two woodland caribou ecotypes (boreal/eastern migratory) overlap. Our objectives were to reconstruct the evolutionary history of the eastern migratory ecotype and to assess the potential role of introgression in ecotype evolution. STRUCTURE analyses identified five higher order groups (i.e. three boreal caribou populations, eastern migratory ecotype and barren-ground). The evolutionary history of the eastern migratory ecotype was best explained by an early genetic introgression from barren-ground into a woodland caribou lineage during the Late Pleistocene and subsequent divergence of the eastern migratory ecotype during the Holocene. These results are consistent with the retreat of the Laurentide ice sheet and the colonization of the Hudson Bay coastal areas subsequent to the establishment of forest tundra vegetation approximately 7000 years ago. This historical reconstruction of the eastern migratory ecotype further supports its current classification as a conservation unit, specifically a Designatable Unit, under Canada’s Species at Risk Act. These findings have implications for other sub-specific contact zones for caribou and other North American species in conservation unit delineation. |
format |
Article in Journal/Newspaper |
author |
Cornelya F. C. Klütsch Micheline Manseau Vicki Trim Jean Polfus Paul J. Wilson |
author_facet |
Cornelya F. C. Klütsch Micheline Manseau Vicki Trim Jean Polfus Paul J. Wilson |
author_sort |
Cornelya F. C. Klütsch |
title |
The eastern migratory caribou: the role of genetic introgression in ecotype evolution |
title_short |
The eastern migratory caribou: the role of genetic introgression in ecotype evolution |
title_full |
The eastern migratory caribou: the role of genetic introgression in ecotype evolution |
title_fullStr |
The eastern migratory caribou: the role of genetic introgression in ecotype evolution |
title_full_unstemmed |
The eastern migratory caribou: the role of genetic introgression in ecotype evolution |
title_sort |
eastern migratory caribou: the role of genetic introgression in ecotype evolution |
publisher |
The Royal Society |
publishDate |
2016 |
url |
https://doi.org/10.1098/rsos.150469 https://doaj.org/article/14736e0926b349fbb30e1208d30a9f09 |
geographic |
Hudson Bay Canada Hudson |
geographic_facet |
Hudson Bay Canada Hudson |
genre |
caribou Hudson Bay Ice Sheet Rangifer tarandus Tundra |
genre_facet |
caribou Hudson Bay Ice Sheet Rangifer tarandus Tundra |
op_source |
Royal Society Open Science, Vol 3, Iss 2 (2016) |
op_relation |
https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.150469 https://doaj.org/toc/2054-5703 2054-5703 doi:10.1098/rsos.150469 https://doaj.org/article/14736e0926b349fbb30e1208d30a9f09 |
op_doi |
https://doi.org/10.1098/rsos.150469 |
container_title |
Royal Society Open Science |
container_volume |
3 |
container_issue |
2 |
container_start_page |
150469 |
_version_ |
1766388546458877952 |