Generic genetic differences between farmed and wild Atlantic salmon identified from a 7K SNP‐chip
Abstract Genetic interactions between farmed and wild conspecifics are of special concern in fisheries where large numbers of domesticated individuals are released into the wild. In the Atlantic salmon ( Salmo salar ), selective breeding since the 1970’s has resulted in rapid genetic changes in comm...
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crwiley:10.1111/j.1755-0998.2010.02959.x 2024-09-15T17:56:15+00:00 Generic genetic differences between farmed and wild Atlantic salmon identified from a 7K SNP‐chip KARLSSON, STEN MOEN, THOMAS LIEN, SIGBJØRN GLOVER, KEVIN A. HINDAR, KJETIL 2011 http://dx.doi.org/10.1111/j.1755-0998.2010.02959.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1755-0998.2010.02959.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1755-0998.2010.02959.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Molecular Ecology Resources volume 11, issue s1, page 247-253 ISSN 1755-098X 1755-0998 journal-article 2011 crwiley https://doi.org/10.1111/j.1755-0998.2010.02959.x 2024-08-06T04:20:08Z Abstract Genetic interactions between farmed and wild conspecifics are of special concern in fisheries where large numbers of domesticated individuals are released into the wild. In the Atlantic salmon ( Salmo salar ), selective breeding since the 1970’s has resulted in rapid genetic changes in commercially important traits, such as a doubling of the growth rate. Each year, farmed salmon escape from net pens, enter rivers, and interbreed with wild salmon. Field experiments demonstrate that genetic introgression may weaken the viability of recipient populations. However, due to the lack of diagnostic genetic markers, little is known about actual rates of gene flow from farmed to wild populations. Here we present a panel of 60 single nucleotide polymorphisms (SNPs) that collectively are diagnostic in identifying individual salmon as being farmed or wild, regardless of their populations of origin. These were sourced from a pool of 7000 SNPs comparing historical wild and farmed salmon populations, and were distributed on all but two of the 29 chromosomes. We suggest that the generic differences between farmed and wild salmon at these SNPs have arisen due to domestication. The identified panel of SNPs will permit quantification of gene flow from farmed to wild salmon populations, elucidating one of the most controversial potential impacts of aquaculture. With increasing global interest in aquaculture and increasing pressure on wild populations, results from our study have implications for a wide range of species. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Molecular Ecology Resources 11 247 253 |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract Genetic interactions between farmed and wild conspecifics are of special concern in fisheries where large numbers of domesticated individuals are released into the wild. In the Atlantic salmon ( Salmo salar ), selective breeding since the 1970’s has resulted in rapid genetic changes in commercially important traits, such as a doubling of the growth rate. Each year, farmed salmon escape from net pens, enter rivers, and interbreed with wild salmon. Field experiments demonstrate that genetic introgression may weaken the viability of recipient populations. However, due to the lack of diagnostic genetic markers, little is known about actual rates of gene flow from farmed to wild populations. Here we present a panel of 60 single nucleotide polymorphisms (SNPs) that collectively are diagnostic in identifying individual salmon as being farmed or wild, regardless of their populations of origin. These were sourced from a pool of 7000 SNPs comparing historical wild and farmed salmon populations, and were distributed on all but two of the 29 chromosomes. We suggest that the generic differences between farmed and wild salmon at these SNPs have arisen due to domestication. The identified panel of SNPs will permit quantification of gene flow from farmed to wild salmon populations, elucidating one of the most controversial potential impacts of aquaculture. With increasing global interest in aquaculture and increasing pressure on wild populations, results from our study have implications for a wide range of species. |
format |
Article in Journal/Newspaper |
author |
KARLSSON, STEN MOEN, THOMAS LIEN, SIGBJØRN GLOVER, KEVIN A. HINDAR, KJETIL |
spellingShingle |
KARLSSON, STEN MOEN, THOMAS LIEN, SIGBJØRN GLOVER, KEVIN A. HINDAR, KJETIL Generic genetic differences between farmed and wild Atlantic salmon identified from a 7K SNP‐chip |
author_facet |
KARLSSON, STEN MOEN, THOMAS LIEN, SIGBJØRN GLOVER, KEVIN A. HINDAR, KJETIL |
author_sort |
KARLSSON, STEN |
title |
Generic genetic differences between farmed and wild Atlantic salmon identified from a 7K SNP‐chip |
title_short |
Generic genetic differences between farmed and wild Atlantic salmon identified from a 7K SNP‐chip |
title_full |
Generic genetic differences between farmed and wild Atlantic salmon identified from a 7K SNP‐chip |
title_fullStr |
Generic genetic differences between farmed and wild Atlantic salmon identified from a 7K SNP‐chip |
title_full_unstemmed |
Generic genetic differences between farmed and wild Atlantic salmon identified from a 7K SNP‐chip |
title_sort |
generic genetic differences between farmed and wild atlantic salmon identified from a 7k snp‐chip |
publisher |
Wiley |
publishDate |
2011 |
url |
http://dx.doi.org/10.1111/j.1755-0998.2010.02959.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1755-0998.2010.02959.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1755-0998.2010.02959.x |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Molecular Ecology Resources volume 11, issue s1, page 247-253 ISSN 1755-098X 1755-0998 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1755-0998.2010.02959.x |
container_title |
Molecular Ecology Resources |
container_volume |
11 |
container_start_page |
247 |
op_container_end_page |
253 |
_version_ |
1810432454412992512 |