Genomic approaches to guide the conservation and management of wild Atlantic salmon
Genetic variation is the foundation of all biological diversity. Documenting and understanding this variation and factors affecting it is paramount in the era of global biodiversity loss. This can be achieved through genomic approaches that provide insights into adaptively important genetic diversit...
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Other Authors: | , , , , , , , , , |
Format: | Doctoral or Postdoctoral Thesis |
Language: | English |
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Helsingin yliopisto
2023
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Online Access: | http://hdl.handle.net/10138/567105 |
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/567105 |
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Open Polar |
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HELDA – University of Helsinki Open Repository |
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ftunivhelsihelda |
language |
English |
topic |
ecology evolutionary biology conservation genetics luonnonsuojelugenetiikka |
spellingShingle |
ecology evolutionary biology conservation genetics luonnonsuojelugenetiikka Miettinen, Antti Genomic approaches to guide the conservation and management of wild Atlantic salmon |
topic_facet |
ecology evolutionary biology conservation genetics luonnonsuojelugenetiikka |
description |
Genetic variation is the foundation of all biological diversity. Documenting and understanding this variation and factors affecting it is paramount in the era of global biodiversity loss. This can be achieved through genomic approaches that provide insights into adaptively important genetic diversity. Such information can be used for efficient planning of conservation and management actions for natural populations. In particular, the discovery of large-effect loci linked to important life-history diversity allows studying the impacts of different selection pressures on ecologically relevant genetic variation. In this thesis, I characterised fine-scale genetic structuring and putatively adaptive genetic variation in the largest Atlantic salmon (Salmo salar) stock in the Baltic Sea region, spawning in the Tornio and Kalix Rivers. Furthermore, I used an archive of tissue samples spanning 93 years (from 1928 to 2020) to examine how temporally varying fishing mortality may affect adaptively important genetic and life-history diversity in this actively exploited stock. First, using 18 microsatellite markers, we found that upstream and downstream reaches of the large Tornio-Kalix River complex were genetically differentiated. This genetic structure was linked to life-history variation: migration timing at different life stages varied between salmon from upper and lower parts of the river system. Second, we used a genome-wide SNP array of 60,252 markers to further explore the fine-scale population structure and to detect potentially adaptive genetic variation in the Tornio-Kalix. We identified further population genetic substructuring and strong candidates for genomic regions putatively under locally divergent selection. These regions contained genes previously associated with major life-history variation, such as migration and maturation timing of Atlantic salmon. Third, we developed a genotyping-by-sequencing SNP panel to monitor spatiotemporal variation in harvesting pressures imposed by commercial and recreational ... |
author2 |
Elmer, Kathryn University of Helsinki, Faculty of Biological and Environmental Sciences Doctoral Programme in Wildlife Biology University of Helsinki, Institute of Biotechnology Helsingin yliopisto, bio- ja ympäristötieteellinen tiedekunta Luonnonvaraisten eliöiden tutkimuksen tohtoriohjelma Helsingfors universitet, bio- och miljövetenskapliga fakulteten Doktorandprogrammet i forskning om vilda organismer Pritchard, Victoria Primmer, Craig |
format |
Doctoral or Postdoctoral Thesis |
author |
Miettinen, Antti |
author_facet |
Miettinen, Antti |
author_sort |
Miettinen, Antti |
title |
Genomic approaches to guide the conservation and management of wild Atlantic salmon |
title_short |
Genomic approaches to guide the conservation and management of wild Atlantic salmon |
title_full |
Genomic approaches to guide the conservation and management of wild Atlantic salmon |
title_fullStr |
Genomic approaches to guide the conservation and management of wild Atlantic salmon |
title_full_unstemmed |
Genomic approaches to guide the conservation and management of wild Atlantic salmon |
title_sort |
genomic approaches to guide the conservation and management of wild atlantic salmon |
publisher |
Helsingin yliopisto |
publishDate |
2023 |
url |
http://hdl.handle.net/10138/567105 |
long_lat |
ENVELOPE(24.147,24.147,65.848,65.848) ENVELOPE(23.156,23.156,65.853,65.853) |
geographic |
Tornio Kalix |
geographic_facet |
Tornio Kalix |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
URN:ISBN:978-951-51-9538-8 Helsingin yliopisto, 2023, Dissertationes Universitatis Helsingiensis. 2954-2898 Dissertationes Universitatis Helsingiensis URN:ISSN:2954-2952 URN:ISBN:978-951-51-9539-5 http://hdl.handle.net/10138/567105 |
op_rights |
Julkaisu on tekijänoikeussäännösten alainen. Teosta voi lukea ja tulostaa henkilökohtaista käyttöä varten. Käyttö kaupallisiin tarkoituksiin on kielletty. This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited. Publikationen är skyddad av upphovsrätten. Den får läsas och skrivas ut för personligt bruk. Användning i kommersiellt syfte är förbjuden. |
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1790597999260336128 |
spelling |
ftunivhelsihelda:oai:helda.helsinki.fi:10138/567105 2024-02-11T10:02:06+01:00 Genomic approaches to guide the conservation and management of wild Atlantic salmon Miettinen, Antti Elmer, Kathryn University of Helsinki, Faculty of Biological and Environmental Sciences Doctoral Programme in Wildlife Biology University of Helsinki, Institute of Biotechnology Helsingin yliopisto, bio- ja ympäristötieteellinen tiedekunta Luonnonvaraisten eliöiden tutkimuksen tohtoriohjelma Helsingfors universitet, bio- och miljövetenskapliga fakulteten Doktorandprogrammet i forskning om vilda organismer Pritchard, Victoria Primmer, Craig 2023-11-14T07:08:35Z application/pdf http://hdl.handle.net/10138/567105 eng eng Helsingin yliopisto Helsingfors universitet University of Helsinki URN:ISBN:978-951-51-9538-8 Helsingin yliopisto, 2023, Dissertationes Universitatis Helsingiensis. 2954-2898 Dissertationes Universitatis Helsingiensis URN:ISSN:2954-2952 URN:ISBN:978-951-51-9539-5 http://hdl.handle.net/10138/567105 Julkaisu on tekijänoikeussäännösten alainen. Teosta voi lukea ja tulostaa henkilökohtaista käyttöä varten. Käyttö kaupallisiin tarkoituksiin on kielletty. This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited. Publikationen är skyddad av upphovsrätten. Den får läsas och skrivas ut för personligt bruk. Användning i kommersiellt syfte är förbjuden. ecology evolutionary biology conservation genetics luonnonsuojelugenetiikka Text 1181 Ekologia, evoluutiobiologia 1184 Genetiikka, kehitysbiologia, fysiologia 1181 Ekologi, evolutionsbiologi 1184 Genetik, utvecklingsbiologi, fysiologi 1181 Ecology, evolutionary biology 1184 Genetics, developmental biology, physiology Doctoral dissertation (article-based) Artikkeliväitöskirja Artikelavhandling doctoralThesis 2023 ftunivhelsihelda 2024-01-18T00:01:14Z Genetic variation is the foundation of all biological diversity. Documenting and understanding this variation and factors affecting it is paramount in the era of global biodiversity loss. This can be achieved through genomic approaches that provide insights into adaptively important genetic diversity. Such information can be used for efficient planning of conservation and management actions for natural populations. In particular, the discovery of large-effect loci linked to important life-history diversity allows studying the impacts of different selection pressures on ecologically relevant genetic variation. In this thesis, I characterised fine-scale genetic structuring and putatively adaptive genetic variation in the largest Atlantic salmon (Salmo salar) stock in the Baltic Sea region, spawning in the Tornio and Kalix Rivers. Furthermore, I used an archive of tissue samples spanning 93 years (from 1928 to 2020) to examine how temporally varying fishing mortality may affect adaptively important genetic and life-history diversity in this actively exploited stock. First, using 18 microsatellite markers, we found that upstream and downstream reaches of the large Tornio-Kalix River complex were genetically differentiated. This genetic structure was linked to life-history variation: migration timing at different life stages varied between salmon from upper and lower parts of the river system. Second, we used a genome-wide SNP array of 60,252 markers to further explore the fine-scale population structure and to detect potentially adaptive genetic variation in the Tornio-Kalix. We identified further population genetic substructuring and strong candidates for genomic regions putatively under locally divergent selection. These regions contained genes previously associated with major life-history variation, such as migration and maturation timing of Atlantic salmon. Third, we developed a genotyping-by-sequencing SNP panel to monitor spatiotemporal variation in harvesting pressures imposed by commercial and recreational ... Doctoral or Postdoctoral Thesis Atlantic salmon Salmo salar HELDA – University of Helsinki Open Repository Tornio ENVELOPE(24.147,24.147,65.848,65.848) Kalix ENVELOPE(23.156,23.156,65.853,65.853) |