Population Genetics of Arctic Grayling Distributed Across Large, Unobstructed River Systems
Abstract We investigated the population genetics of Arctic Grayling Thymallus arcticus distributed throughout several connected river systems in Alberta, Canada. Broad‐ and fine‐scale population structure was examined by genotyping nine microsatellite loci in 1,116 Arctic Grayling captured from 40 s...
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crwiley:10.1080/00028487.2014.886620 2024-06-02T08:00:11+00:00 Population Genetics of Arctic Grayling Distributed Across Large, Unobstructed River Systems Reilly, Jessica R. Paszkowski, Cynthia A. Coltman, David W. Alberta Conservation Association Natural Sciences and Engineering Research Council of Canada Canadian Wildlife Federation Aboriginal Affairs and Northern Development Canada 2014 http://dx.doi.org/10.1080/00028487.2014.886620 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1080/00028487.2014.886620 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Transactions of the American Fisheries Society volume 143, issue 3, page 802-816 ISSN 0002-8487 1548-8659 journal-article 2014 crwiley https://doi.org/10.1080/00028487.2014.886620 2024-05-03T11:46:08Z Abstract We investigated the population genetics of Arctic Grayling Thymallus arcticus distributed throughout several connected river systems in Alberta, Canada. Broad‐ and fine‐scale population structure was examined by genotyping nine microsatellite loci in 1,116 Arctic Grayling captured from 40 sites in the Hay, Peace, and Athabasca River basins. Genetic diversity tended to decline from north to south (allelic richness versus latitude: Spearman's rank correlation r s = 0.793, P < 0.05); the lowest level of diversity was detected in a stocked population. We found significant genetic divergence between and within major river basins (overall genetic differentiation index F ST [ θ ST ] = 0.13) and strong isolation‐by‐distance patterns in the Peace River basin (Mantel's r = 0.97, P < 0.001) and Athabasca River basin (Mantel's r = 0.95, P < 0.001). Evidence for gene flow among sites in neighboring rivers (i.e., 25–100km apart) was common; significant genetic differentiation tended to occur at the subbasin level. The spatial scale of differentiation for Arctic Grayling is intermediate to those reported for other sympatric salmonid species that differ in population size and degree of spawning site fidelity. Article in Journal/Newspaper Arctic grayling Arctic Athabasca River Peace River Thymallus arcticus Wiley Online Library Arctic Athabasca River Canada Transactions of the American Fisheries Society 143 3 802 816 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract We investigated the population genetics of Arctic Grayling Thymallus arcticus distributed throughout several connected river systems in Alberta, Canada. Broad‐ and fine‐scale population structure was examined by genotyping nine microsatellite loci in 1,116 Arctic Grayling captured from 40 sites in the Hay, Peace, and Athabasca River basins. Genetic diversity tended to decline from north to south (allelic richness versus latitude: Spearman's rank correlation r s = 0.793, P < 0.05); the lowest level of diversity was detected in a stocked population. We found significant genetic divergence between and within major river basins (overall genetic differentiation index F ST [ θ ST ] = 0.13) and strong isolation‐by‐distance patterns in the Peace River basin (Mantel's r = 0.97, P < 0.001) and Athabasca River basin (Mantel's r = 0.95, P < 0.001). Evidence for gene flow among sites in neighboring rivers (i.e., 25–100km apart) was common; significant genetic differentiation tended to occur at the subbasin level. The spatial scale of differentiation for Arctic Grayling is intermediate to those reported for other sympatric salmonid species that differ in population size and degree of spawning site fidelity. |
author2 |
Alberta Conservation Association Natural Sciences and Engineering Research Council of Canada Canadian Wildlife Federation Aboriginal Affairs and Northern Development Canada |
format |
Article in Journal/Newspaper |
author |
Reilly, Jessica R. Paszkowski, Cynthia A. Coltman, David W. |
spellingShingle |
Reilly, Jessica R. Paszkowski, Cynthia A. Coltman, David W. Population Genetics of Arctic Grayling Distributed Across Large, Unobstructed River Systems |
author_facet |
Reilly, Jessica R. Paszkowski, Cynthia A. Coltman, David W. |
author_sort |
Reilly, Jessica R. |
title |
Population Genetics of Arctic Grayling Distributed Across Large, Unobstructed River Systems |
title_short |
Population Genetics of Arctic Grayling Distributed Across Large, Unobstructed River Systems |
title_full |
Population Genetics of Arctic Grayling Distributed Across Large, Unobstructed River Systems |
title_fullStr |
Population Genetics of Arctic Grayling Distributed Across Large, Unobstructed River Systems |
title_full_unstemmed |
Population Genetics of Arctic Grayling Distributed Across Large, Unobstructed River Systems |
title_sort |
population genetics of arctic grayling distributed across large, unobstructed river systems |
publisher |
Wiley |
publishDate |
2014 |
url |
http://dx.doi.org/10.1080/00028487.2014.886620 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1080/00028487.2014.886620 |
geographic |
Arctic Athabasca River Canada |
geographic_facet |
Arctic Athabasca River Canada |
genre |
Arctic grayling Arctic Athabasca River Peace River Thymallus arcticus |
genre_facet |
Arctic grayling Arctic Athabasca River Peace River Thymallus arcticus |
op_source |
Transactions of the American Fisheries Society volume 143, issue 3, page 802-816 ISSN 0002-8487 1548-8659 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1080/00028487.2014.886620 |
container_title |
Transactions of the American Fisheries Society |
container_volume |
143 |
container_issue |
3 |
container_start_page |
802 |
op_container_end_page |
816 |
_version_ |
1800744183158276096 |