Assessing footprints of selection in commercial Atlantic salmon populations using microsatellite data
Summary Relatively large rates of response to traits of economic importance have been observed in different selection experiments in salmon. Several QTL have been mapped in the salmon genome, explaining unprecedented levels of phenotypic variation. Owing to the relatively large selection intensity,...
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crwiley:10.1111/j.1365-2052.2012.02387.x 2024-06-02T08:03:28+00:00 Assessing footprints of selection in commercial Atlantic salmon populations using microsatellite data Martinez, V. Dettleff, P. Lopez, P. Fernandez, G. Jedlicki, A. Yañez, J. M. Davidson, W. S. 2012 http://dx.doi.org/10.1111/j.1365-2052.2012.02387.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2052.2012.02387.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2052.2012.02387.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Animal Genetics volume 44, issue 2, page 223-226 ISSN 0268-9146 1365-2052 journal-article 2012 crwiley https://doi.org/10.1111/j.1365-2052.2012.02387.x 2024-05-03T11:58:11Z Summary Relatively large rates of response to traits of economic importance have been observed in different selection experiments in salmon. Several QTL have been mapped in the salmon genome, explaining unprecedented levels of phenotypic variation. Owing to the relatively large selection intensity, individual loci may be indirectly selected, leaving molecular footprints of selection, together with increased inbreeding, as its likely relatives will share the selected loci. We used population differentiation and levels of linkage disequilibrium in chromosomes known to be harbouring QTL for body weight, infectious pancreatic necrosis resistance and infectious salmon anaemia resistance to assess the recent selection history at the genomic level in Atlantic salmon. The results clearly suggest that the marker SSA0343BSFU on chromosome 3 (body weight QTL ) showed strong evidence of directional selection. It is intriguing that this marker is physically mapped to a region near the coding sequence of DVL2 , making it an ideal candidate gene to explain the rapid evolutionary response of this chromosome to selection for growth in S almo salar . Weak evidence of diversifying selection was observed in the QTL associated with infectious pancreatic necrosis and infectious salmon anaemia resistance. Overall, this study showed that artificial selection has produced important changes in the Atlantic salmon genome, validating QTL in commercial salmon populations used for production purposes according to the recent selection history. Article in Journal/Newspaper Atlantic salmon Wiley Online Library Almo ENVELOPE(15.306,15.306,66.954,66.954) Animal Genetics 44 2 223 226 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Summary Relatively large rates of response to traits of economic importance have been observed in different selection experiments in salmon. Several QTL have been mapped in the salmon genome, explaining unprecedented levels of phenotypic variation. Owing to the relatively large selection intensity, individual loci may be indirectly selected, leaving molecular footprints of selection, together with increased inbreeding, as its likely relatives will share the selected loci. We used population differentiation and levels of linkage disequilibrium in chromosomes known to be harbouring QTL for body weight, infectious pancreatic necrosis resistance and infectious salmon anaemia resistance to assess the recent selection history at the genomic level in Atlantic salmon. The results clearly suggest that the marker SSA0343BSFU on chromosome 3 (body weight QTL ) showed strong evidence of directional selection. It is intriguing that this marker is physically mapped to a region near the coding sequence of DVL2 , making it an ideal candidate gene to explain the rapid evolutionary response of this chromosome to selection for growth in S almo salar . Weak evidence of diversifying selection was observed in the QTL associated with infectious pancreatic necrosis and infectious salmon anaemia resistance. Overall, this study showed that artificial selection has produced important changes in the Atlantic salmon genome, validating QTL in commercial salmon populations used for production purposes according to the recent selection history. |
format |
Article in Journal/Newspaper |
author |
Martinez, V. Dettleff, P. Lopez, P. Fernandez, G. Jedlicki, A. Yañez, J. M. Davidson, W. S. |
spellingShingle |
Martinez, V. Dettleff, P. Lopez, P. Fernandez, G. Jedlicki, A. Yañez, J. M. Davidson, W. S. Assessing footprints of selection in commercial Atlantic salmon populations using microsatellite data |
author_facet |
Martinez, V. Dettleff, P. Lopez, P. Fernandez, G. Jedlicki, A. Yañez, J. M. Davidson, W. S. |
author_sort |
Martinez, V. |
title |
Assessing footprints of selection in commercial Atlantic salmon populations using microsatellite data |
title_short |
Assessing footprints of selection in commercial Atlantic salmon populations using microsatellite data |
title_full |
Assessing footprints of selection in commercial Atlantic salmon populations using microsatellite data |
title_fullStr |
Assessing footprints of selection in commercial Atlantic salmon populations using microsatellite data |
title_full_unstemmed |
Assessing footprints of selection in commercial Atlantic salmon populations using microsatellite data |
title_sort |
assessing footprints of selection in commercial atlantic salmon populations using microsatellite data |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1111/j.1365-2052.2012.02387.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2052.2012.02387.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2052.2012.02387.x |
long_lat |
ENVELOPE(15.306,15.306,66.954,66.954) |
geographic |
Almo |
geographic_facet |
Almo |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
Animal Genetics volume 44, issue 2, page 223-226 ISSN 0268-9146 1365-2052 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-2052.2012.02387.x |
container_title |
Animal Genetics |
container_volume |
44 |
container_issue |
2 |
container_start_page |
223 |
op_container_end_page |
226 |
_version_ |
1800748005366693888 |