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...
Published in: | PLOS ONE |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Public Library of Science (PLoS)
2016
|
Subjects: | |
Online Access: | https://doi.org/10.1371/journal.pone.0152732 https://doaj.org/article/7ec511e8e0ac4e8bb7d78d10ff4499c6 |
id |
ftdoajarticles:oai:doaj.org/article:7ec511e8e0ac4e8bb7d78d10ff4499c6 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:7ec511e8e0ac4e8bb7d78d10ff4499c6 2023-05-15T14:29:58+02:00 Genetic Diversity and Hybridisation between Native and Introduced Salmonidae Fishes in a Swedish Alpine Lake. Leanne Faulks Örjan Östman 2016-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0152732 https://doaj.org/article/7ec511e8e0ac4e8bb7d78d10ff4499c6 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC4816307?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0152732 https://doaj.org/article/7ec511e8e0ac4e8bb7d78d10ff4499c6 PLoS ONE, Vol 11, Iss 3, p e0152732 (2016) Medicine R Science Q article 2016 ftdoajarticles https://doi.org/10.1371/journal.pone.0152732 2022-12-30T21:04:41Z 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. Article in Journal/Newspaper Arctic charr Arctic Climate change Salvelinus alpinus Directory of Open Access Journals: DOAJ Articles Arctic Alpine Lake ENVELOPE(-129.182,-129.182,55.529,55.529) PLOS ONE 11 3 e0152732 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Leanne Faulks Örjan Östman Genetic Diversity and Hybridisation between Native and Introduced Salmonidae Fishes in a Swedish Alpine Lake. |
topic_facet |
Medicine R Science Q |
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 |
Article in Journal/Newspaper |
author |
Leanne Faulks Örjan Östman |
author_facet |
Leanne Faulks Örjan Östman |
author_sort |
Leanne Faulks |
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 (PLoS) |
publishDate |
2016 |
url |
https://doi.org/10.1371/journal.pone.0152732 https://doaj.org/article/7ec511e8e0ac4e8bb7d78d10ff4499c6 |
long_lat |
ENVELOPE(-129.182,-129.182,55.529,55.529) |
geographic |
Arctic Alpine Lake |
geographic_facet |
Arctic Alpine Lake |
genre |
Arctic charr Arctic Climate change Salvelinus alpinus |
genre_facet |
Arctic charr Arctic Climate change Salvelinus alpinus |
op_source |
PLoS ONE, Vol 11, Iss 3, p e0152732 (2016) |
op_relation |
http://europepmc.org/articles/PMC4816307?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0152732 https://doaj.org/article/7ec511e8e0ac4e8bb7d78d10ff4499c6 |
op_doi |
https://doi.org/10.1371/journal.pone.0152732 |
container_title |
PLOS ONE |
container_volume |
11 |
container_issue |
3 |
container_start_page |
e0152732 |
_version_ |
1766303916401623040 |