Genetic Diversity and Hybridisation between Native and Introduced Salmonidae Fishes in a Swedish Alpine Lake
Understanding the processes underlying diversification can aid in formulating appropriate conservation management plans that help maintain the evolutionary potential of taxa, particularly under human-induced activities and climate change. Here we assessed the microsatellite genetic diversity and str...
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ftpubmed:oai:pubmedcentral.nih.gov:4816307 2023-05-15T14:29:58+02:00 Genetic Diversity and Hybridisation between Native and Introduced Salmonidae Fishes in a Swedish Alpine Lake Faulks, Leanne Östman, Örjan 2016-03-31 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4816307/ http://www.ncbi.nlm.nih.gov/pubmed/27032100 https://doi.org/10.1371/journal.pone.0152732 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4816307/ http://www.ncbi.nlm.nih.gov/pubmed/27032100 http://dx.doi.org/10.1371/journal.pone.0152732 © 2016 Faulks, Östman http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Research Article Text 2016 ftpubmed https://doi.org/10.1371/journal.pone.0152732 2016-04-17T00:08:17Z Understanding the processes underlying diversification can aid in formulating appropriate conservation management plans that help maintain the evolutionary potential of taxa, particularly under human-induced activities and climate change. Here we assessed the microsatellite genetic diversity and structure of three salmonid species, two native (Arctic charr, Salvelinus alpinus and brown trout, Salmo trutta) and one introduced (brook charr, Salvelinus fontinalis), from an alpine lake in sub-arctic Sweden, Lake Ånn. The genetic diversity of the three species was similar and sufficiently high from a conservation genetics perspective: corrected total heterozygosity, H’T = 0.54, 0.66, 0.60 and allelic richness, AR = 4.93, 5.53 and 5.26 for Arctic charr, brown trout and brook charr, respectively. There were indications of elevated inbreeding coefficients in brown trout (GIS = 0.144) and brook charr (GIS = 0.129) although sibling relationships were likely a confounding factor, as a high proportion of siblings were observed in all species within and among sampling locations. Overall genetic structure differed between species, Fst = 0.01, 0.02 and 0.04 in Arctic charr, brown trout and brook charr respectively, and there was differentiation at only a few specific locations. There was clear evidence of hybridisation between the native Arctic charr and the introduced brook charr, with 6% of individuals being hybrids, all of which were sampled in tributary streams. The ecological and evolutionary consequences of the observed hybridisation are priorities for further research and the conservation of the evolutionary potential of native salmonid species. Text Arctic charr Arctic Climate change Salvelinus alpinus PubMed Central (PMC) Alpine Lake ENVELOPE(-129.182,-129.182,55.529,55.529) Arctic PLOS ONE 11 3 e0152732 |
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Research Article Faulks, Leanne Östman, Örjan Genetic Diversity and Hybridisation between Native and Introduced Salmonidae Fishes in a Swedish Alpine Lake |
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Research Article |
description |
Understanding the processes underlying diversification can aid in formulating appropriate conservation management plans that help maintain the evolutionary potential of taxa, particularly under human-induced activities and climate change. Here we assessed the microsatellite genetic diversity and structure of three salmonid species, two native (Arctic charr, Salvelinus alpinus and brown trout, Salmo trutta) and one introduced (brook charr, Salvelinus fontinalis), from an alpine lake in sub-arctic Sweden, Lake Ånn. The genetic diversity of the three species was similar and sufficiently high from a conservation genetics perspective: corrected total heterozygosity, H’T = 0.54, 0.66, 0.60 and allelic richness, AR = 4.93, 5.53 and 5.26 for Arctic charr, brown trout and brook charr, respectively. There were indications of elevated inbreeding coefficients in brown trout (GIS = 0.144) and brook charr (GIS = 0.129) although sibling relationships were likely a confounding factor, as a high proportion of siblings were observed in all species within and among sampling locations. Overall genetic structure differed between species, Fst = 0.01, 0.02 and 0.04 in Arctic charr, brown trout and brook charr respectively, and there was differentiation at only a few specific locations. There was clear evidence of hybridisation between the native Arctic charr and the introduced brook charr, with 6% of individuals being hybrids, all of which were sampled in tributary streams. The ecological and evolutionary consequences of the observed hybridisation are priorities for further research and the conservation of the evolutionary potential of native salmonid species. |
format |
Text |
author |
Faulks, Leanne Östman, Örjan |
author_facet |
Faulks, Leanne Östman, Örjan |
author_sort |
Faulks, Leanne |
title |
Genetic Diversity and Hybridisation between Native and Introduced Salmonidae Fishes in a Swedish Alpine Lake |
title_short |
Genetic Diversity and Hybridisation between Native and Introduced Salmonidae Fishes in a Swedish Alpine Lake |
title_full |
Genetic Diversity and Hybridisation between Native and Introduced Salmonidae Fishes in a Swedish Alpine Lake |
title_fullStr |
Genetic Diversity and Hybridisation between Native and Introduced Salmonidae Fishes in a Swedish Alpine Lake |
title_full_unstemmed |
Genetic Diversity and Hybridisation between Native and Introduced Salmonidae Fishes in a Swedish Alpine Lake |
title_sort |
genetic diversity and hybridisation between native and introduced salmonidae fishes in a swedish alpine lake |
publisher |
Public Library of Science |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4816307/ http://www.ncbi.nlm.nih.gov/pubmed/27032100 https://doi.org/10.1371/journal.pone.0152732 |
long_lat |
ENVELOPE(-129.182,-129.182,55.529,55.529) |
geographic |
Alpine Lake Arctic |
geographic_facet |
Alpine Lake Arctic |
genre |
Arctic charr Arctic Climate change Salvelinus alpinus |
genre_facet |
Arctic charr Arctic Climate change Salvelinus alpinus |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4816307/ http://www.ncbi.nlm.nih.gov/pubmed/27032100 http://dx.doi.org/10.1371/journal.pone.0152732 |
op_rights |
© 2016 Faulks, Östman http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0152732 |
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PLOS ONE |
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11 |
container_issue |
3 |
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e0152732 |
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