Population-specific gene expression responses to hybridization between farm and wild Atlantic salmon
Because of intrinsic differences in their genetic architectures, wild populations invaded by domesticated individuals could experience population-specific consequences following introgression by genetic material of domesticated origin. Expression levels of 16 000 transcripts were quantified by micro...
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ftpubmed:oai:pubmedcentral.nih.gov:3352448 2023-05-15T15:31:24+02:00 Population-specific gene expression responses to hybridization between farm and wild Atlantic salmon Normandeau, Eric Hutchings, Jeffrey A Fraser, Dylan J Bernatchez, Louis 2009-11 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3352448 https://doi.org/10.1111/j.1752-4571.2009.00074.x en eng Blackwell Publishing Ltd http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3352448 http://dx.doi.org/10.1111/j.1752-4571.2009.00074.x © 2009 The Authors. Journal compilation © 2009 Blackwell Publishing Ltd Original Articles Text 2009 ftpubmed https://doi.org/10.1111/j.1752-4571.2009.00074.x 2013-09-04T07:15:40Z Because of intrinsic differences in their genetic architectures, wild populations invaded by domesticated individuals could experience population-specific consequences following introgression by genetic material of domesticated origin. Expression levels of 16 000 transcripts were quantified by microarrays in liver tissue from farm, wild, and farm-wild backcross (i.e. F1 farm-wild hybrid × wild; total n = 50) Atlantic salmon (Salmo salar) raised under common environmental conditions. The wild populations and farm strain originated from three North American rivers in eastern Canada (Stewiacke, Tusket, and Saint John rivers, respectively). Analysis of variance revealed 177 transcripts with different expression levels among the five strains compared. Five times more of these transcripts were differentiated between farmed parents and Tusket backcrosses (n = 53) than between Stewiacke backcrosses and their farmed parents (n = 11). Altered biological processes in backcrosses also differed between populations both in number and in the type of processes impacted (metabolism vs immunity). Over-dominant gene expression regulation in backcrosses varied considerably between populations (23% in Stewiacke vs 44% in Tusket). Hence, the consequences of introgression of farm genetic material on gene expression depended on population-specific genetic architectures. These results support the need to evaluate impacts of farm-wild genetic interactions at the population scale. Text Atlantic salmon Salmo salar PubMed Central (PMC) Canada Evolutionary Applications 2 4 489 503 |
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Original Articles |
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Original Articles Normandeau, Eric Hutchings, Jeffrey A Fraser, Dylan J Bernatchez, Louis Population-specific gene expression responses to hybridization between farm and wild Atlantic salmon |
topic_facet |
Original Articles |
description |
Because of intrinsic differences in their genetic architectures, wild populations invaded by domesticated individuals could experience population-specific consequences following introgression by genetic material of domesticated origin. Expression levels of 16 000 transcripts were quantified by microarrays in liver tissue from farm, wild, and farm-wild backcross (i.e. F1 farm-wild hybrid × wild; total n = 50) Atlantic salmon (Salmo salar) raised under common environmental conditions. The wild populations and farm strain originated from three North American rivers in eastern Canada (Stewiacke, Tusket, and Saint John rivers, respectively). Analysis of variance revealed 177 transcripts with different expression levels among the five strains compared. Five times more of these transcripts were differentiated between farmed parents and Tusket backcrosses (n = 53) than between Stewiacke backcrosses and their farmed parents (n = 11). Altered biological processes in backcrosses also differed between populations both in number and in the type of processes impacted (metabolism vs immunity). Over-dominant gene expression regulation in backcrosses varied considerably between populations (23% in Stewiacke vs 44% in Tusket). Hence, the consequences of introgression of farm genetic material on gene expression depended on population-specific genetic architectures. These results support the need to evaluate impacts of farm-wild genetic interactions at the population scale. |
format |
Text |
author |
Normandeau, Eric Hutchings, Jeffrey A Fraser, Dylan J Bernatchez, Louis |
author_facet |
Normandeau, Eric Hutchings, Jeffrey A Fraser, Dylan J Bernatchez, Louis |
author_sort |
Normandeau, Eric |
title |
Population-specific gene expression responses to hybridization between farm and wild Atlantic salmon |
title_short |
Population-specific gene expression responses to hybridization between farm and wild Atlantic salmon |
title_full |
Population-specific gene expression responses to hybridization between farm and wild Atlantic salmon |
title_fullStr |
Population-specific gene expression responses to hybridization between farm and wild Atlantic salmon |
title_full_unstemmed |
Population-specific gene expression responses to hybridization between farm and wild Atlantic salmon |
title_sort |
population-specific gene expression responses to hybridization between farm and wild atlantic salmon |
publisher |
Blackwell Publishing Ltd |
publishDate |
2009 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3352448 https://doi.org/10.1111/j.1752-4571.2009.00074.x |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3352448 http://dx.doi.org/10.1111/j.1752-4571.2009.00074.x |
op_rights |
© 2009 The Authors. Journal compilation © 2009 Blackwell Publishing Ltd |
op_doi |
https://doi.org/10.1111/j.1752-4571.2009.00074.x |
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Evolutionary Applications |
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2 |
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4 |
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489 |
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503 |
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