Genetic growth potential, rather than phenotypic size, predicts migration phenotype in Atlantic salmon
Knowledge of the relative importance of genetic versus environmental determinants of major developmental transitions is pertinent to understanding phenotypic evolution. In salmonid fishes, a major developmental transition enables a risky seaward migration that provides access to feed resources. In A...
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ROYAL BELGIAN SOC EAR, NOSE, THROAT, HEAD & NECK SURGERY
2020
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Online Access: | http://hdl.handle.net/10138/318377 |
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/318377 2024-01-07T09:42:11+01:00 Genetic growth potential, rather than phenotypic size, predicts migration phenotype in Atlantic salmon Debes, Paul V. Piavchenko, Nikolai Erkinaro, Jaakko Primmer, Craig R. Evolution, Conservation, and Genomics Organismal and Evolutionary Biology Research Programme Helsinki Institute of Sustainability Science (HELSUS) Institute of Biotechnology 2020-08-18T07:27:01Z 10 application/pdf http://hdl.handle.net/10138/318377 eng eng ROYAL BELGIAN SOC EAR, NOSE, THROAT, HEAD & NECK SURGERY 10.1098/rspb.2020.0867 Debes , P V , Piavchenko , N , Erkinaro , J & Primmer , C R 2020 , ' Genetic growth potential, rather than phenotypic size, predicts migration phenotype in Atlantic salmon ' , Proceedings of the Royal Society B. Biological Sciences , vol. 287 , no. 1931 , 20200867 . https://doi.org/10.1098/rspb.2020.0867 RIS: urn:F3DCDBF73789F197272BD60720B7319C ORCID: /0000-0002-3687-8435/work/79183719 85088517149 a6f12eda-c6bf-4580-b9e2-0235959df1e4 http://hdl.handle.net/10138/318377 000554927100009 openAccess info:eu-repo/semantics/openAccess 1181 Ecology evolutionary biology partial migration age-specific migration threshold model Atlantic salmon smolting GENERAL-METHODS SALAR L EVOLUTION ECOLOGY SMOLT SMOLTIFICATION HERITABILITY CONSERVATION PHOTOPERIOD POPULATION Article acceptedVersion 2020 ftunivhelsihelda 2023-12-14T00:10:00Z Knowledge of the relative importance of genetic versus environmental determinants of major developmental transitions is pertinent to understanding phenotypic evolution. In salmonid fishes, a major developmental transition enables a risky seaward migration that provides access to feed resources. In Atlantic salmon, initiation of the migrant phenotype, and thus age of migrants, is presumably controlled via thresholds of a quantitative liability, approximated by body size expressed long before the migration. However, how well size approximates liability, both genetically and environmentally, remains uncertain. We studied 32 Atlantic salmon families in two temperatures and feeding regimes (fully fed, temporarily restricted) to completion of migration status at age 1 year. We detected a lower migrant probability in the cold (0.42) than the warm environment (0.76), but no effects of male maturation status or feed restriction. By contrast, body length in late summer predicted migrant probability and its control reduced migrant probability heritability by 50-70%. Furthermore, migrant probability and length showed high heritabilities and between-environment genetic correlations, and were phenotypically highly correlated with stronger genetic than environmental contributions. Altogether, quantitative estimates for the genetic and environmental effects predicting the migrant phenotype indicate, for a given temperature, a larger importance of genetic than environmental size effects. Peer reviewed Article in Journal/Newspaper Atlantic salmon HELDA – University of Helsinki Open Repository Proceedings of the Royal Society B: Biological Sciences 287 1931 20200867 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
1181 Ecology evolutionary biology partial migration age-specific migration threshold model Atlantic salmon smolting GENERAL-METHODS SALAR L EVOLUTION ECOLOGY SMOLT SMOLTIFICATION HERITABILITY CONSERVATION PHOTOPERIOD POPULATION |
spellingShingle |
1181 Ecology evolutionary biology partial migration age-specific migration threshold model Atlantic salmon smolting GENERAL-METHODS SALAR L EVOLUTION ECOLOGY SMOLT SMOLTIFICATION HERITABILITY CONSERVATION PHOTOPERIOD POPULATION Debes, Paul V. Piavchenko, Nikolai Erkinaro, Jaakko Primmer, Craig R. Genetic growth potential, rather than phenotypic size, predicts migration phenotype in Atlantic salmon |
topic_facet |
1181 Ecology evolutionary biology partial migration age-specific migration threshold model Atlantic salmon smolting GENERAL-METHODS SALAR L EVOLUTION ECOLOGY SMOLT SMOLTIFICATION HERITABILITY CONSERVATION PHOTOPERIOD POPULATION |
description |
Knowledge of the relative importance of genetic versus environmental determinants of major developmental transitions is pertinent to understanding phenotypic evolution. In salmonid fishes, a major developmental transition enables a risky seaward migration that provides access to feed resources. In Atlantic salmon, initiation of the migrant phenotype, and thus age of migrants, is presumably controlled via thresholds of a quantitative liability, approximated by body size expressed long before the migration. However, how well size approximates liability, both genetically and environmentally, remains uncertain. We studied 32 Atlantic salmon families in two temperatures and feeding regimes (fully fed, temporarily restricted) to completion of migration status at age 1 year. We detected a lower migrant probability in the cold (0.42) than the warm environment (0.76), but no effects of male maturation status or feed restriction. By contrast, body length in late summer predicted migrant probability and its control reduced migrant probability heritability by 50-70%. Furthermore, migrant probability and length showed high heritabilities and between-environment genetic correlations, and were phenotypically highly correlated with stronger genetic than environmental contributions. Altogether, quantitative estimates for the genetic and environmental effects predicting the migrant phenotype indicate, for a given temperature, a larger importance of genetic than environmental size effects. Peer reviewed |
author2 |
Evolution, Conservation, and Genomics Organismal and Evolutionary Biology Research Programme Helsinki Institute of Sustainability Science (HELSUS) Institute of Biotechnology |
format |
Article in Journal/Newspaper |
author |
Debes, Paul V. Piavchenko, Nikolai Erkinaro, Jaakko Primmer, Craig R. |
author_facet |
Debes, Paul V. Piavchenko, Nikolai Erkinaro, Jaakko Primmer, Craig R. |
author_sort |
Debes, Paul V. |
title |
Genetic growth potential, rather than phenotypic size, predicts migration phenotype in Atlantic salmon |
title_short |
Genetic growth potential, rather than phenotypic size, predicts migration phenotype in Atlantic salmon |
title_full |
Genetic growth potential, rather than phenotypic size, predicts migration phenotype in Atlantic salmon |
title_fullStr |
Genetic growth potential, rather than phenotypic size, predicts migration phenotype in Atlantic salmon |
title_full_unstemmed |
Genetic growth potential, rather than phenotypic size, predicts migration phenotype in Atlantic salmon |
title_sort |
genetic growth potential, rather than phenotypic size, predicts migration phenotype in atlantic salmon |
publisher |
ROYAL BELGIAN SOC EAR, NOSE, THROAT, HEAD & NECK SURGERY |
publishDate |
2020 |
url |
http://hdl.handle.net/10138/318377 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_relation |
10.1098/rspb.2020.0867 Debes , P V , Piavchenko , N , Erkinaro , J & Primmer , C R 2020 , ' Genetic growth potential, rather than phenotypic size, predicts migration phenotype in Atlantic salmon ' , Proceedings of the Royal Society B. Biological Sciences , vol. 287 , no. 1931 , 20200867 . https://doi.org/10.1098/rspb.2020.0867 RIS: urn:F3DCDBF73789F197272BD60720B7319C ORCID: /0000-0002-3687-8435/work/79183719 85088517149 a6f12eda-c6bf-4580-b9e2-0235959df1e4 http://hdl.handle.net/10138/318377 000554927100009 |
op_rights |
openAccess info:eu-repo/semantics/openAccess |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
287 |
container_issue |
1931 |
container_start_page |
20200867 |
_version_ |
1787423114839195648 |