Heritability estimation via molecular pedigree reconstruction in a wild fish population reveals substantial evolutionary potential for sea age at maturity, but not size within age classes
While evolutionary responses require heritable variation, estimates of heritability (h(2)) from wild fish populations remain rare. A 20-year molecular pedigree for a wild Scottish population of Atlantic salmon (Salmo salar) was used to investigate genetic contributions to (co) variation in two impor...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/311380 2024-01-07T09:42:13+01:00 Heritability estimation via molecular pedigree reconstruction in a wild fish population reveals substantial evolutionary potential for sea age at maturity, but not size within age classes Reed, Thomas E. Prodohl, Paulo Bradley, Caroline Gilbey, John McGinnity, Philip Primmer, Craig R. Bacon, Philip J. Organismal and Evolutionary Biology Research Programme Helsinki Institute of Sustainability Science (HELSUS) Institute of Biotechnology Evolution, Conservation, and Genomics 2020-02-11T08:30:01Z 16 application/pdf http://hdl.handle.net/10138/311380 eng eng Nrc research press 10.1139/cjfas-2018-0123 The opportunity for such genetic work was first realised by Alan Youngson, John Taggart and Eric Verspoor, whom we thank for initiating the sample collection. John Taggart kindly provided tissue and some DNA-extract aliquots, from the earlier years. We thank FFL field staff over two decades, particularly Iain Malcolm, Iain McLaren, Alastair Thorne, Mike Donaghy, and Ross Glover, for collecting the data, scales, and tissue samples. Alastair Thorne, Iain McLaren, and Ross Glover read the scales, and Aya Thorne prepared scales for DNA analysis. Iain Malcolm and Ross Glover collated and quality-controlled the biometric data. Iain Malcolm, Ross Glover, and Stuart Middlemas made constructive comments on earlier versions of the manuscript. Data collection at the Girnock is funded by the Scottish Government, through Marine Scotland Science Freshwater Fisheries Laboratory under Service Level Agreement FW01t. TR was supported by a European Research Council (ERC) Starting Grant (639192), CRP by the Academy of Finland (grant Nos. 302873, 307593). PMcG, PP, and CB were supported by the Beaufort Marine Research award in Fish Population Genetics funded by the Irish Government under the Sea Change Programme. Reed , T E , Prodohl , P , Bradley , C , Gilbey , J , McGinnity , P , Primmer , C R & Bacon , P J 2019 , ' Heritability estimation via molecular pedigree reconstruction in a wild fish population reveals substantial evolutionary potential for sea age at maturity, but not size within age classes ' , Canadian Journal of Fisheries and Aquatic Sciences , vol. 76 , no. 5 , pp. 790-805 . https://doi.org/10.1139/cjfas-2018-0123 ORCID: /0000-0002-3687-8435/work/60162987 ab501210-4837-431f-b50e-3581c6a159c9 http://hdl.handle.net/10138/311380 000465934500010 unspecified openAccess info:eu-repo/semantics/openAccess SALMON SALMO-SALAR ATLANTIC SALMON SURVIVAL GENETICS GROWTH COAST L 1181 Ecology evolutionary biology Article acceptedVersion 2020 ftunivhelsihelda 2023-12-14T00:10:57Z While evolutionary responses require heritable variation, estimates of heritability (h(2)) from wild fish populations remain rare. A 20-year molecular pedigree for a wild Scottish population of Atlantic salmon (Salmo salar) was used to investigate genetic contributions to (co) variation in two important, correlated, phenotypic traits: "sea age" (number of winters spent at sea prior to spawning) and size-at-maturity (body length just prior to spawning). Sea age was strongly heritable (h(2) = 0.51) and size exhibited moderate heritability (h(2) = 0.27). A very strong genetic correlation (r(G) = 0.96) between these traits implied the same functional loci must underpin variation in each. Indeed, body size within sea ages had much lower heritability that did not differ significantly from zero. Thus, within wild S. salar populations, temporal changes in sea age composition could reflect evolutionary responses, whereas rapid changes of body size within sea ages are more likely due to phenotypic plasticity. These inheritance patterns will influence the scope of evolutionary responses to factors such as harvest or climate change and, hence, have management implications for salmonid populations comprising a mix of sea ages. Peer reviewed Article in Journal/Newspaper Atlantic salmon Salmo salar HELDA – University of Helsinki Open Repository Canadian Journal of Fisheries and Aquatic Sciences 76 5 790 805 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
SALMON SALMO-SALAR ATLANTIC SALMON SURVIVAL GENETICS GROWTH COAST L 1181 Ecology evolutionary biology |
spellingShingle |
SALMON SALMO-SALAR ATLANTIC SALMON SURVIVAL GENETICS GROWTH COAST L 1181 Ecology evolutionary biology Reed, Thomas E. Prodohl, Paulo Bradley, Caroline Gilbey, John McGinnity, Philip Primmer, Craig R. Bacon, Philip J. Heritability estimation via molecular pedigree reconstruction in a wild fish population reveals substantial evolutionary potential for sea age at maturity, but not size within age classes |
topic_facet |
SALMON SALMO-SALAR ATLANTIC SALMON SURVIVAL GENETICS GROWTH COAST L 1181 Ecology evolutionary biology |
description |
While evolutionary responses require heritable variation, estimates of heritability (h(2)) from wild fish populations remain rare. A 20-year molecular pedigree for a wild Scottish population of Atlantic salmon (Salmo salar) was used to investigate genetic contributions to (co) variation in two important, correlated, phenotypic traits: "sea age" (number of winters spent at sea prior to spawning) and size-at-maturity (body length just prior to spawning). Sea age was strongly heritable (h(2) = 0.51) and size exhibited moderate heritability (h(2) = 0.27). A very strong genetic correlation (r(G) = 0.96) between these traits implied the same functional loci must underpin variation in each. Indeed, body size within sea ages had much lower heritability that did not differ significantly from zero. Thus, within wild S. salar populations, temporal changes in sea age composition could reflect evolutionary responses, whereas rapid changes of body size within sea ages are more likely due to phenotypic plasticity. These inheritance patterns will influence the scope of evolutionary responses to factors such as harvest or climate change and, hence, have management implications for salmonid populations comprising a mix of sea ages. Peer reviewed |
author2 |
Organismal and Evolutionary Biology Research Programme Helsinki Institute of Sustainability Science (HELSUS) Institute of Biotechnology Evolution, Conservation, and Genomics |
format |
Article in Journal/Newspaper |
author |
Reed, Thomas E. Prodohl, Paulo Bradley, Caroline Gilbey, John McGinnity, Philip Primmer, Craig R. Bacon, Philip J. |
author_facet |
Reed, Thomas E. Prodohl, Paulo Bradley, Caroline Gilbey, John McGinnity, Philip Primmer, Craig R. Bacon, Philip J. |
author_sort |
Reed, Thomas E. |
title |
Heritability estimation via molecular pedigree reconstruction in a wild fish population reveals substantial evolutionary potential for sea age at maturity, but not size within age classes |
title_short |
Heritability estimation via molecular pedigree reconstruction in a wild fish population reveals substantial evolutionary potential for sea age at maturity, but not size within age classes |
title_full |
Heritability estimation via molecular pedigree reconstruction in a wild fish population reveals substantial evolutionary potential for sea age at maturity, but not size within age classes |
title_fullStr |
Heritability estimation via molecular pedigree reconstruction in a wild fish population reveals substantial evolutionary potential for sea age at maturity, but not size within age classes |
title_full_unstemmed |
Heritability estimation via molecular pedigree reconstruction in a wild fish population reveals substantial evolutionary potential for sea age at maturity, but not size within age classes |
title_sort |
heritability estimation via molecular pedigree reconstruction in a wild fish population reveals substantial evolutionary potential for sea age at maturity, but not size within age classes |
publisher |
Nrc research press |
publishDate |
2020 |
url |
http://hdl.handle.net/10138/311380 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
10.1139/cjfas-2018-0123 The opportunity for such genetic work was first realised by Alan Youngson, John Taggart and Eric Verspoor, whom we thank for initiating the sample collection. John Taggart kindly provided tissue and some DNA-extract aliquots, from the earlier years. We thank FFL field staff over two decades, particularly Iain Malcolm, Iain McLaren, Alastair Thorne, Mike Donaghy, and Ross Glover, for collecting the data, scales, and tissue samples. Alastair Thorne, Iain McLaren, and Ross Glover read the scales, and Aya Thorne prepared scales for DNA analysis. Iain Malcolm and Ross Glover collated and quality-controlled the biometric data. Iain Malcolm, Ross Glover, and Stuart Middlemas made constructive comments on earlier versions of the manuscript. Data collection at the Girnock is funded by the Scottish Government, through Marine Scotland Science Freshwater Fisheries Laboratory under Service Level Agreement FW01t. TR was supported by a European Research Council (ERC) Starting Grant (639192), CRP by the Academy of Finland (grant Nos. 302873, 307593). PMcG, PP, and CB were supported by the Beaufort Marine Research award in Fish Population Genetics funded by the Irish Government under the Sea Change Programme. Reed , T E , Prodohl , P , Bradley , C , Gilbey , J , McGinnity , P , Primmer , C R & Bacon , P J 2019 , ' Heritability estimation via molecular pedigree reconstruction in a wild fish population reveals substantial evolutionary potential for sea age at maturity, but not size within age classes ' , Canadian Journal of Fisheries and Aquatic Sciences , vol. 76 , no. 5 , pp. 790-805 . https://doi.org/10.1139/cjfas-2018-0123 ORCID: /0000-0002-3687-8435/work/60162987 ab501210-4837-431f-b50e-3581c6a159c9 http://hdl.handle.net/10138/311380 000465934500010 |
op_rights |
unspecified openAccess info:eu-repo/semantics/openAccess |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
76 |
container_issue |
5 |
container_start_page |
790 |
op_container_end_page |
805 |
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1787423153100685312 |