Genetic architecture of survival and fitness-related traits in two populations of Atlantic salmon
The additive genetic effects of traits can be used to predict evolutionary trajectories, such as responses to selection. Non-additive genetic and maternal environmental effects can also change evolutionary trajectories and influence phenotypes, but these effects have received less attention by resea...
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ftpubmed:oai:pubmedcentral.nih.gov:3833687 2023-05-15T15:31:09+02:00 Genetic architecture of survival and fitness-related traits in two populations of Atlantic salmon Houde, A LS Wilson, C C Neff, B D 2013-12 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3833687 http://www.ncbi.nlm.nih.gov/pubmed/23942281 https://doi.org/10.1038/hdy.2013.74 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://www.ncbi.nlm.nih.gov/pubmed/23942281 http://dx.doi.org/10.1038/hdy.2013.74 Copyright © 2013 The Genetics Society Original Article Text 2013 ftpubmed https://doi.org/10.1038/hdy.2013.74 2014-12-07T00:54:00Z The additive genetic effects of traits can be used to predict evolutionary trajectories, such as responses to selection. Non-additive genetic and maternal environmental effects can also change evolutionary trajectories and influence phenotypes, but these effects have received less attention by researchers. We partitioned the phenotypic variance of survival and fitness-related traits into additive genetic, non-additive genetic and maternal environmental effects using a full-factorial breeding design within two allopatric populations of Atlantic salmon (Salmo salar). Maternal environmental effects were large at early life stages, but decreased during development, with non-additive genetic effects being most significant at later juvenile stages (alevin and fry). Non-additive genetic effects were also, on average, larger than additive genetic effects. The populations, generally, did not differ in the trait values or inferred genetic architecture of the traits. Any differences between the populations for trait values could be explained by maternal environmental effects. We discuss whether the similarities in architectures of these populations is the result of natural selection across a common juvenile environment. Text Atlantic salmon Salmo salar PubMed Central (PMC) Heredity 111 6 513 519 |
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Original Article Houde, A LS Wilson, C C Neff, B D Genetic architecture of survival and fitness-related traits in two populations of Atlantic salmon |
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Original Article |
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The additive genetic effects of traits can be used to predict evolutionary trajectories, such as responses to selection. Non-additive genetic and maternal environmental effects can also change evolutionary trajectories and influence phenotypes, but these effects have received less attention by researchers. We partitioned the phenotypic variance of survival and fitness-related traits into additive genetic, non-additive genetic and maternal environmental effects using a full-factorial breeding design within two allopatric populations of Atlantic salmon (Salmo salar). Maternal environmental effects were large at early life stages, but decreased during development, with non-additive genetic effects being most significant at later juvenile stages (alevin and fry). Non-additive genetic effects were also, on average, larger than additive genetic effects. The populations, generally, did not differ in the trait values or inferred genetic architecture of the traits. Any differences between the populations for trait values could be explained by maternal environmental effects. We discuss whether the similarities in architectures of these populations is the result of natural selection across a common juvenile environment. |
format |
Text |
author |
Houde, A LS Wilson, C C Neff, B D |
author_facet |
Houde, A LS Wilson, C C Neff, B D |
author_sort |
Houde, A LS |
title |
Genetic architecture of survival and fitness-related traits in two populations of Atlantic salmon |
title_short |
Genetic architecture of survival and fitness-related traits in two populations of Atlantic salmon |
title_full |
Genetic architecture of survival and fitness-related traits in two populations of Atlantic salmon |
title_fullStr |
Genetic architecture of survival and fitness-related traits in two populations of Atlantic salmon |
title_full_unstemmed |
Genetic architecture of survival and fitness-related traits in two populations of Atlantic salmon |
title_sort |
genetic architecture of survival and fitness-related traits in two populations of atlantic salmon |
publisher |
Nature Publishing Group |
publishDate |
2013 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3833687 http://www.ncbi.nlm.nih.gov/pubmed/23942281 https://doi.org/10.1038/hdy.2013.74 |
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Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://www.ncbi.nlm.nih.gov/pubmed/23942281 http://dx.doi.org/10.1038/hdy.2013.74 |
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Copyright © 2013 The Genetics Society |
op_doi |
https://doi.org/10.1038/hdy.2013.74 |
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