Canadian polar bear population structure using genome‐wide markers
Abstract Predicting the consequences of environmental changes, including human‐mediated climate change on species, requires that we quantify range‐wide patterns of genetic diversity and identify the ecological, environmental, and historical factors that have contributed to it. Here, we generate base...
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doaj-ef574778a9924acfb5f3eb45a1c751022021-04-02T12:09:07ZengWileyEcology and Evolution2045-77582020-04-011083706371410.1002/ece3.6159Canadian polar bear population structure using genome‐wide markersEvelyn L. Jensen0Christina Tschritter1Peter V. C. deGroot2Kristen M. Hayward3Marsha Branigan4Markus Dyck5Rute B. G. Clemente‐Carvalho6Stephen C. Lougheed7Department of Biology Queen’s University Kingston ON CanadaDepartment of Biology Queen’s University Kingston ON CanadaDepartment of Biology Queen’s University Kingston ON CanadaDepartment of Biology Queen’s University Kingston ON CanadaDepartment of Environment and Natural Resources Government of the Northwest Territories Inuvik NT CanadaDepartment of Environment Government of Nunavut Igloolik NU CanadaDepartment of Biology Queen’s University Kingston ON CanadaDepartment of Biology Queen’s University Kingston ON CanadaAbstract Predicting the consequences of environmental changes, including human‐mediated climate change on species, requires that we quantify range‐wide patterns of genetic diversity and identify the ecological, environmental, and historical factors that have contributed to it. Here, we generate baseline data on polar bear population structure across most Canadian subpopulations (n = 358) using 13,488 genome‐wide single nucleotide polymorphisms (SNPs) identified with double‐digest restriction site‐associated DNA sequencing (ddRAD). Our ddRAD dataset showed three genetic clusters in the sampled Canadian range, congruent with previous studies based on microsatellites across the same regions; however, due to a lack of sampling in Norwegian Bay, we were unable to confirm the existence of a unique cluster in that subpopulation. These data on the genetic structure of polar bears using SNPs provide a detailed baseline against which future shifts in population structure can be assessed, and opportunities to develop new noninvasive tools for monitoring polar bears across their range.https://doi.org/10.1002/ece3.6159ArcticconservationddRADpopulation geneticssingle nucleotide polymorphismUrsus maritimus |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Evelyn L. Jensen Christina Tschritter Peter V. C. deGroot Kristen M. Hayward Marsha Branigan Markus Dyck Rute B. G. Clemente‐Carvalho Stephen C. Lougheed |
spellingShingle |
Evelyn L. Jensen Christina Tschritter Peter V. C. deGroot Kristen M. Hayward Marsha Branigan Markus Dyck Rute B. G. Clemente‐Carvalho Stephen C. Lougheed Canadian polar bear population structure using genome‐wide markers Ecology and Evolution Arctic conservation ddRAD population genetics single nucleotide polymorphism Ursus maritimus |
author_facet |
Evelyn L. Jensen Christina Tschritter Peter V. C. deGroot Kristen M. Hayward Marsha Branigan Markus Dyck Rute B. G. Clemente‐Carvalho Stephen C. Lougheed |
author_sort |
Evelyn L. Jensen |
title |
Canadian polar bear population structure using genome‐wide markers |
title_short |
Canadian polar bear population structure using genome‐wide markers |
title_full |
Canadian polar bear population structure using genome‐wide markers |
title_fullStr |
Canadian polar bear population structure using genome‐wide markers |
title_full_unstemmed |
Canadian polar bear population structure using genome‐wide markers |
title_sort |
canadian polar bear population structure using genome‐wide markers |
publisher |
Wiley |
series |
Ecology and Evolution |
issn |
2045-7758 |
publishDate |
2020-04-01 |
description |
Abstract Predicting the consequences of environmental changes, including human‐mediated climate change on species, requires that we quantify range‐wide patterns of genetic diversity and identify the ecological, environmental, and historical factors that have contributed to it. Here, we generate baseline data on polar bear population structure across most Canadian subpopulations (n = 358) using 13,488 genome‐wide single nucleotide polymorphisms (SNPs) identified with double‐digest restriction site‐associated DNA sequencing (ddRAD). Our ddRAD dataset showed three genetic clusters in the sampled Canadian range, congruent with previous studies based on microsatellites across the same regions; however, due to a lack of sampling in Norwegian Bay, we were unable to confirm the existence of a unique cluster in that subpopulation. These data on the genetic structure of polar bears using SNPs provide a detailed baseline against which future shifts in population structure can be assessed, and opportunities to develop new noninvasive tools for monitoring polar bears across their range. |
topic |
Arctic conservation ddRAD population genetics single nucleotide polymorphism Ursus maritimus |
url |
https://doi.org/10.1002/ece3.6159 |
work_keys_str_mv |
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1721570102512451584 |