The Phe362Tyr mutation conveying resistance to organophosphates occurs in high frequencies in salmon lice collected from wild salmon and trout
The parasitic salmon louse, and its resistance to chemical delousing agents, represents one of the largest challenges to the salmon aquaculture industry. We genotyped lice sampled from wild salmon and sea trout throughout Norway with the recently identified Phe362Tyr mutation that conveys resistance...
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Online Access: | https://hdl.handle.net/1956/17125 https://doi.org/10.1038/s41598-017-14681-6 |
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ftunivbergen:oai:bora.uib.no:1956/17125 2023-05-15T15:31:26+02:00 The Phe362Tyr mutation conveying resistance to organophosphates occurs in high frequencies in salmon lice collected from wild salmon and trout Fjørtoft, Helene Børretzen Besnier, Francois Stene, Anne Nilsen, Frank Bjørn, Pål Arne Tveten, Ann-Kristin Finstad, Bengt Aspehaug, Vidar Glover, Kevin 2017-11-02T09:04:10Z application/pdf https://hdl.handle.net/1956/17125 https://doi.org/10.1038/s41598-017-14681-6 eng eng Nature Publishing Group urn:issn:2045-2322 https://hdl.handle.net/1956/17125 https://doi.org/10.1038/s41598-017-14681-6 cristin:1510132 Attribution CC BY http://creativecommons.org/licenses/by/4.0 Copyright 2017 The Author(s) Scientific Reports Peer reviewed Journal article 2017 ftunivbergen https://doi.org/10.1038/s41598-017-14681-6 2023-03-14T17:43:55Z The parasitic salmon louse, and its resistance to chemical delousing agents, represents one of the largest challenges to the salmon aquaculture industry. We genotyped lice sampled from wild salmon and sea trout throughout Norway with the recently identified Phe362Tyr mutation that conveys resistance to organophosphates. These results were compared to data from lice sampled on farmed salmon in the same regions. The resistant (R) allele was observed in salmon lice from wild salmon and sea trout throughout Norway, although its frequency was highest in farming-intense regions. In most regions, the frequency of the R allele was higher in lice collected from wild sea trout than wild Atlantic salmon, and in all regions, the frequency of the R allele was similar in lice collected from wild sea trout and farmed Atlantic salmon. The R allele is only selected for in fish-farms where organophosphates are used for delousing. Therefore, our results suggest extensive exchange of lice between farmed and wild hosts, and indicate that in farming-dense regions in Norway, aquaculture represents a major driver of salmon louse population structure. Finally, these data suggest that the wild hosts within the regions studied will not delay the spread of resistance when organophosphates are used. publishedVersion Article in Journal/Newspaper Atlantic salmon University of Bergen: Bergen Open Research Archive (BORA-UiB) Norway Scientific Reports 7 1 |
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Open Polar |
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University of Bergen: Bergen Open Research Archive (BORA-UiB) |
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ftunivbergen |
language |
English |
description |
The parasitic salmon louse, and its resistance to chemical delousing agents, represents one of the largest challenges to the salmon aquaculture industry. We genotyped lice sampled from wild salmon and sea trout throughout Norway with the recently identified Phe362Tyr mutation that conveys resistance to organophosphates. These results were compared to data from lice sampled on farmed salmon in the same regions. The resistant (R) allele was observed in salmon lice from wild salmon and sea trout throughout Norway, although its frequency was highest in farming-intense regions. In most regions, the frequency of the R allele was higher in lice collected from wild sea trout than wild Atlantic salmon, and in all regions, the frequency of the R allele was similar in lice collected from wild sea trout and farmed Atlantic salmon. The R allele is only selected for in fish-farms where organophosphates are used for delousing. Therefore, our results suggest extensive exchange of lice between farmed and wild hosts, and indicate that in farming-dense regions in Norway, aquaculture represents a major driver of salmon louse population structure. Finally, these data suggest that the wild hosts within the regions studied will not delay the spread of resistance when organophosphates are used. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Fjørtoft, Helene Børretzen Besnier, Francois Stene, Anne Nilsen, Frank Bjørn, Pål Arne Tveten, Ann-Kristin Finstad, Bengt Aspehaug, Vidar Glover, Kevin |
spellingShingle |
Fjørtoft, Helene Børretzen Besnier, Francois Stene, Anne Nilsen, Frank Bjørn, Pål Arne Tveten, Ann-Kristin Finstad, Bengt Aspehaug, Vidar Glover, Kevin The Phe362Tyr mutation conveying resistance to organophosphates occurs in high frequencies in salmon lice collected from wild salmon and trout |
author_facet |
Fjørtoft, Helene Børretzen Besnier, Francois Stene, Anne Nilsen, Frank Bjørn, Pål Arne Tveten, Ann-Kristin Finstad, Bengt Aspehaug, Vidar Glover, Kevin |
author_sort |
Fjørtoft, Helene Børretzen |
title |
The Phe362Tyr mutation conveying resistance to organophosphates occurs in high frequencies in salmon lice collected from wild salmon and trout |
title_short |
The Phe362Tyr mutation conveying resistance to organophosphates occurs in high frequencies in salmon lice collected from wild salmon and trout |
title_full |
The Phe362Tyr mutation conveying resistance to organophosphates occurs in high frequencies in salmon lice collected from wild salmon and trout |
title_fullStr |
The Phe362Tyr mutation conveying resistance to organophosphates occurs in high frequencies in salmon lice collected from wild salmon and trout |
title_full_unstemmed |
The Phe362Tyr mutation conveying resistance to organophosphates occurs in high frequencies in salmon lice collected from wild salmon and trout |
title_sort |
phe362tyr mutation conveying resistance to organophosphates occurs in high frequencies in salmon lice collected from wild salmon and trout |
publisher |
Nature Publishing Group |
publishDate |
2017 |
url |
https://hdl.handle.net/1956/17125 https://doi.org/10.1038/s41598-017-14681-6 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
Scientific Reports |
op_relation |
urn:issn:2045-2322 https://hdl.handle.net/1956/17125 https://doi.org/10.1038/s41598-017-14681-6 cristin:1510132 |
op_rights |
Attribution CC BY http://creativecommons.org/licenses/by/4.0 Copyright 2017 The Author(s) |
op_doi |
https://doi.org/10.1038/s41598-017-14681-6 |
container_title |
Scientific Reports |
container_volume |
7 |
container_issue |
1 |
_version_ |
1766361927575928832 |