Linking genetic and ecological differentiation in an ungulate with a circumpolar distribution
Genetic differentiation among populations may arise from the disruption of gene flow due to local adaptation to distinct environments and/or neutral accumulation of mutations and genetic drift resulted from geographical isolation. Quantifying the role of these processes in determining the genetic st...
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Online Access: | https://hdl.handle.net/20.500.11794/17065 https://doi.org/10.1111/ecog.02995 |
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ftunivlavalcorp:oai:corpus.ulaval.ca:20.500.11794/17065 2024-09-09T20:04:46+00:00 Linking genetic and ecological differentiation in an ungulate with a circumpolar distribution Bernatchez, Louis Lecomte, Nicolas Pellissier, Loïc Yannic, Glenn Côté, Steeve D. Ortego, Joaquin 2018-02-14T20:13:45Z application/pdf https://hdl.handle.net/20.500.11794/17065 https://doi.org/10.1111/ecog.02995 eng eng 0906-7590 http://hdl.handle.net/20.500.11794/17065 doi:10.1111/ecog.02995 http://purl.org/coar/access_right/c_16ec Caribou Renne Rangifer Génétique des populations Variabilité génétique article de recherche COAR1_1::Texte::Périodique::Revue::Contribution à un journal::Article::Article de recherche 2018 ftunivlavalcorp https://doi.org/20.500.11794/1706510.1111/ecog.02995 2024-06-17T23:42:35Z Genetic differentiation among populations may arise from the disruption of gene flow due to local adaptation to distinct environments and/or neutral accumulation of mutations and genetic drift resulted from geographical isolation. Quantifying the role of these processes in determining the genetic structure of natural populations remains challenging. Here, we analyze the relative contribution of isolation-by-resistance (IBR), isolation-by-environment (IBE), genetic drift and historical isolation in allopatry during Pleistocene glacial cycles on shaping patterns of genetic differentiation in caribou/reindeer populations Rangifer tarandus across the entire distribution range of the species. Our study integrates analyses at range-wide and regional scales to partial out the effects of historical and contemporary isolation mechanisms. At the circumpolar scale, our results indicate that genetic differentiation is predominantly explained by IBR and historical isolation. At a regional scale, we found that IBR, IBE and population size significantly explained the spatial distribution of genetic variation among populations belonging to the Euro-Beringian lineage within North America. In contrast, genetic differentiation among populations within the North American lineage was predominantly explained by IBR and population size, but not IBE. We also found discrepancies between genetic and ecotype designation across the Holarctic species distribution range. Overall, these results indicate that multiple isolating mechanisms have played roles in shaping the spatial distribution of genetic variation across the distribution range of a large mammal with high potential for gene flow. Considering multiple spatial scales and simultaneously testing a comprehensive suite of potential isolating mechanisms, our study contributes to understand the ecological and evolutionary processes underlying organism–landscape interactions. Other/Unknown Material Rangifer tarandus renne Université Laval: CorpusUL Renne ENVELOPE(9.698,9.698,63.505,63.505) Ecography 41 6 922 937 |
institution |
Open Polar |
collection |
Université Laval: CorpusUL |
op_collection_id |
ftunivlavalcorp |
language |
English |
topic |
Caribou Renne Rangifer Génétique des populations Variabilité génétique |
spellingShingle |
Caribou Renne Rangifer Génétique des populations Variabilité génétique Bernatchez, Louis Lecomte, Nicolas Pellissier, Loïc Yannic, Glenn Côté, Steeve D. Ortego, Joaquin Linking genetic and ecological differentiation in an ungulate with a circumpolar distribution |
topic_facet |
Caribou Renne Rangifer Génétique des populations Variabilité génétique |
description |
Genetic differentiation among populations may arise from the disruption of gene flow due to local adaptation to distinct environments and/or neutral accumulation of mutations and genetic drift resulted from geographical isolation. Quantifying the role of these processes in determining the genetic structure of natural populations remains challenging. Here, we analyze the relative contribution of isolation-by-resistance (IBR), isolation-by-environment (IBE), genetic drift and historical isolation in allopatry during Pleistocene glacial cycles on shaping patterns of genetic differentiation in caribou/reindeer populations Rangifer tarandus across the entire distribution range of the species. Our study integrates analyses at range-wide and regional scales to partial out the effects of historical and contemporary isolation mechanisms. At the circumpolar scale, our results indicate that genetic differentiation is predominantly explained by IBR and historical isolation. At a regional scale, we found that IBR, IBE and population size significantly explained the spatial distribution of genetic variation among populations belonging to the Euro-Beringian lineage within North America. In contrast, genetic differentiation among populations within the North American lineage was predominantly explained by IBR and population size, but not IBE. We also found discrepancies between genetic and ecotype designation across the Holarctic species distribution range. Overall, these results indicate that multiple isolating mechanisms have played roles in shaping the spatial distribution of genetic variation across the distribution range of a large mammal with high potential for gene flow. Considering multiple spatial scales and simultaneously testing a comprehensive suite of potential isolating mechanisms, our study contributes to understand the ecological and evolutionary processes underlying organism–landscape interactions. |
format |
Other/Unknown Material |
author |
Bernatchez, Louis Lecomte, Nicolas Pellissier, Loïc Yannic, Glenn Côté, Steeve D. Ortego, Joaquin |
author_facet |
Bernatchez, Louis Lecomte, Nicolas Pellissier, Loïc Yannic, Glenn Côté, Steeve D. Ortego, Joaquin |
author_sort |
Bernatchez, Louis |
title |
Linking genetic and ecological differentiation in an ungulate with a circumpolar distribution |
title_short |
Linking genetic and ecological differentiation in an ungulate with a circumpolar distribution |
title_full |
Linking genetic and ecological differentiation in an ungulate with a circumpolar distribution |
title_fullStr |
Linking genetic and ecological differentiation in an ungulate with a circumpolar distribution |
title_full_unstemmed |
Linking genetic and ecological differentiation in an ungulate with a circumpolar distribution |
title_sort |
linking genetic and ecological differentiation in an ungulate with a circumpolar distribution |
publishDate |
2018 |
url |
https://hdl.handle.net/20.500.11794/17065 https://doi.org/10.1111/ecog.02995 |
long_lat |
ENVELOPE(9.698,9.698,63.505,63.505) |
geographic |
Renne |
geographic_facet |
Renne |
genre |
Rangifer tarandus renne |
genre_facet |
Rangifer tarandus renne |
op_relation |
0906-7590 http://hdl.handle.net/20.500.11794/17065 doi:10.1111/ecog.02995 |
op_rights |
http://purl.org/coar/access_right/c_16ec |
op_doi |
https://doi.org/20.500.11794/1706510.1111/ecog.02995 |
container_title |
Ecography |
container_volume |
41 |
container_issue |
6 |
container_start_page |
922 |
op_container_end_page |
937 |
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1809937050370048000 |