ARTICLE Genetic and maternal effects on juvenile survival and fitness-related traits in three populations of Atlantic salmon
Abstract: Although studies addressing natural selection have primarily focused on additive genetic effects because of their direct relationship with responses to selection, nonadditive genetic and maternal effects can also significantly influence phenotypes. We partitioned the phenotypic variance of...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.1087.7326 2023-05-15T15:31:52+02:00 ARTICLE Genetic and maternal effects on juvenile survival and fitness-related traits in three populations of Atlantic salmon Aimee Lee S Houde Craig A Black Chris C Wilson Trevor E Pitcher Bryan D Neff The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1087.7326 http://web2.uwindsor.ca/biology/pitcher/Pitcher%20lab/Publications_files/Houde%20et%20al.%202015.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1087.7326 http://web2.uwindsor.ca/biology/pitcher/Pitcher%20lab/Publications_files/Houde%20et%20al.%202015.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://web2.uwindsor.ca/biology/pitcher/Pitcher%20lab/Publications_files/Houde%20et%20al.%202015.pdf text ftciteseerx 2020-05-24T00:17:15Z Abstract: Although studies addressing natural selection have primarily focused on additive genetic effects because of their direct relationship with responses to selection, nonadditive genetic and maternal effects can also significantly influence phenotypes. We partitioned the phenotypic variance of survival and fitness-related traits in juvenile Atlantic salmon (Salmo salar) from three allopatric populations (LaHave, Sebago, and Saint-Jean) into additive genetic, nonadditive genetic, and maternal environmental effects using a full-factorial breeding design. We also modelled the potential increase in offspring performance if nonrandom mating (e.g., mate choice) is considered instead of random mating. The three populations exhibited significant differences in trait values as well as the genetic architecture of the traits. Nevertheless, nonadditive genetic and maternal environmental effects tended to be larger than the additive genetic effects. There was also a shift from maternal environmental to genetic effects during development in two of the populations. That is, maternal environmental effects were larger at early (egg and alevin) life stages, whereas nonadditive effects were larger at the later (fry) life stage. The amount of additive genetic effects was small, suggesting the traits will respond slowly to selection. We discuss how different maternal environmental effects across years may influence the genetic architecture of offspring traits. Résumé : Si les études sur la sélection naturelle se sont principalement intéressées aux effets génétiques additifs en raison de leur lien direct avec les réactions à la sélection, les effets génétiques non additifs et les effets maternels peuvent également exercer une influence significative sur les phénotypes. Nous avons subdivisé la variance phénotypique de caractères associés à la survie et à l'aptitude chez des saumons atlantiques (Salmo salar) juvéniles de trois populations allopatriques (LaHave, Sebago et Saint-Jean) en des effets génétiques additifs, génétiques ... Text Atlantic salmon Salmo salar Unknown |
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Abstract: Although studies addressing natural selection have primarily focused on additive genetic effects because of their direct relationship with responses to selection, nonadditive genetic and maternal effects can also significantly influence phenotypes. We partitioned the phenotypic variance of survival and fitness-related traits in juvenile Atlantic salmon (Salmo salar) from three allopatric populations (LaHave, Sebago, and Saint-Jean) into additive genetic, nonadditive genetic, and maternal environmental effects using a full-factorial breeding design. We also modelled the potential increase in offspring performance if nonrandom mating (e.g., mate choice) is considered instead of random mating. The three populations exhibited significant differences in trait values as well as the genetic architecture of the traits. Nevertheless, nonadditive genetic and maternal environmental effects tended to be larger than the additive genetic effects. There was also a shift from maternal environmental to genetic effects during development in two of the populations. That is, maternal environmental effects were larger at early (egg and alevin) life stages, whereas nonadditive effects were larger at the later (fry) life stage. The amount of additive genetic effects was small, suggesting the traits will respond slowly to selection. We discuss how different maternal environmental effects across years may influence the genetic architecture of offspring traits. Résumé : Si les études sur la sélection naturelle se sont principalement intéressées aux effets génétiques additifs en raison de leur lien direct avec les réactions à la sélection, les effets génétiques non additifs et les effets maternels peuvent également exercer une influence significative sur les phénotypes. Nous avons subdivisé la variance phénotypique de caractères associés à la survie et à l'aptitude chez des saumons atlantiques (Salmo salar) juvéniles de trois populations allopatriques (LaHave, Sebago et Saint-Jean) en des effets génétiques additifs, génétiques ... |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Aimee Lee S Houde Craig A Black Chris C Wilson Trevor E Pitcher Bryan D Neff |
spellingShingle |
Aimee Lee S Houde Craig A Black Chris C Wilson Trevor E Pitcher Bryan D Neff ARTICLE Genetic and maternal effects on juvenile survival and fitness-related traits in three populations of Atlantic salmon |
author_facet |
Aimee Lee S Houde Craig A Black Chris C Wilson Trevor E Pitcher Bryan D Neff |
author_sort |
Aimee Lee |
title |
ARTICLE Genetic and maternal effects on juvenile survival and fitness-related traits in three populations of Atlantic salmon |
title_short |
ARTICLE Genetic and maternal effects on juvenile survival and fitness-related traits in three populations of Atlantic salmon |
title_full |
ARTICLE Genetic and maternal effects on juvenile survival and fitness-related traits in three populations of Atlantic salmon |
title_fullStr |
ARTICLE Genetic and maternal effects on juvenile survival and fitness-related traits in three populations of Atlantic salmon |
title_full_unstemmed |
ARTICLE Genetic and maternal effects on juvenile survival and fitness-related traits in three populations of Atlantic salmon |
title_sort |
article genetic and maternal effects on juvenile survival and fitness-related traits in three populations of atlantic salmon |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1087.7326 http://web2.uwindsor.ca/biology/pitcher/Pitcher%20lab/Publications_files/Houde%20et%20al.%202015.pdf |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
http://web2.uwindsor.ca/biology/pitcher/Pitcher%20lab/Publications_files/Houde%20et%20al.%202015.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1087.7326 http://web2.uwindsor.ca/biology/pitcher/Pitcher%20lab/Publications_files/Houde%20et%20al.%202015.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766362371250454528 |