Mapping of quantitative trait loci for flesh colour and growth traits in Atlantic salmon ( Salmo salar )
Abstract Background Flesh colour and growth related traits in salmonids are both commercially important and of great interest from a physiological and evolutionary perspective. The aim of this study was to identify quantitative trait loci (QTL) affecting flesh colour and growth related traits in an...
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ftdoajarticles:oai:doaj.org/article:83e2de760fb44e2786f08889dff9f9d8 2023-05-15T15:31:29+02:00 Mapping of quantitative trait loci for flesh colour and growth traits in Atlantic salmon ( Salmo salar ) Moen Thomas Baranski Matthew Våge Dag 2010-06-01T00:00:00Z https://doi.org/10.1186/1297-9686-42-17 https://doaj.org/article/83e2de760fb44e2786f08889dff9f9d8 DE EN FR ger eng fre BMC http://www.gsejournal.org/content/42/1/17 https://doaj.org/toc/0999-193X https://doaj.org/toc/1297-9686 doi:10.1186/1297-9686-42-17 0999-193X 1297-9686 https://doaj.org/article/83e2de760fb44e2786f08889dff9f9d8 Genetics Selection Evolution, Vol 42, Iss 1, p 17 (2010) Animal culture SF1-1100 Genetics QH426-470 article 2010 ftdoajarticles https://doi.org/10.1186/1297-9686-42-17 2022-12-31T08:35:45Z Abstract Background Flesh colour and growth related traits in salmonids are both commercially important and of great interest from a physiological and evolutionary perspective. The aim of this study was to identify quantitative trait loci (QTL) affecting flesh colour and growth related traits in an F2 population derived from an isolated, landlocked wild population in Norway (Byglands Bleke) and a commercial production population. Methods One hundred and twenty-eight informative microsatellite loci distributed across all 29 linkage groups in Atlantic salmon were genotyped in individuals from four F2 families that were selected from the ends of the flesh colour distribution. Genotyping of 23 additional loci and two additional families was performed on a number of linkage groups harbouring putative QTL. QTL analysis was performed using a line-cross model assuming fixation of alternate QTL alleles and a half-sib model with no assumptions about the number and frequency of QTL alleles in the founder populations. Results A moderate to strong phenotypic correlation was found between colour, length and weight traits. In total, 13 genome-wide significant QTL were detected for all traits using the line-cross model, including three genome-wide significant QTL for flesh colour (Chr 6, Chr 26 and Chr 4). In addition, 32 suggestive QTL were detected (chromosome-wide P < 0.05). Using the half-sib model, six genome-wide significant QTL were detected for all traits, including two for flesh colour (Chr 26 and Chr 4) and 41 suggestive QTL were detected (chromosome-wide P < 0.05). Based on the half-sib analysis, these two genome-wide significant QTL for flesh colour explained 24% of the phenotypic variance for this trait. Conclusions A large number of significant and suggestive QTL for flesh colour and growth traits were found in an F2 population of Atlantic salmon. Chr 26 and Chr 4 presented the strongest evidence for significant QTL affecting flesh colour, while Chr 10, Chr 5, and Chr 4 presented the strongest evidence for ... Article in Journal/Newspaper Atlantic salmon Salmo salar Directory of Open Access Journals: DOAJ Articles Norway Genetics Selection Evolution 42 1 |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
German English French |
topic |
Animal culture SF1-1100 Genetics QH426-470 |
spellingShingle |
Animal culture SF1-1100 Genetics QH426-470 Moen Thomas Baranski Matthew Våge Dag Mapping of quantitative trait loci for flesh colour and growth traits in Atlantic salmon ( Salmo salar ) |
topic_facet |
Animal culture SF1-1100 Genetics QH426-470 |
description |
Abstract Background Flesh colour and growth related traits in salmonids are both commercially important and of great interest from a physiological and evolutionary perspective. The aim of this study was to identify quantitative trait loci (QTL) affecting flesh colour and growth related traits in an F2 population derived from an isolated, landlocked wild population in Norway (Byglands Bleke) and a commercial production population. Methods One hundred and twenty-eight informative microsatellite loci distributed across all 29 linkage groups in Atlantic salmon were genotyped in individuals from four F2 families that were selected from the ends of the flesh colour distribution. Genotyping of 23 additional loci and two additional families was performed on a number of linkage groups harbouring putative QTL. QTL analysis was performed using a line-cross model assuming fixation of alternate QTL alleles and a half-sib model with no assumptions about the number and frequency of QTL alleles in the founder populations. Results A moderate to strong phenotypic correlation was found between colour, length and weight traits. In total, 13 genome-wide significant QTL were detected for all traits using the line-cross model, including three genome-wide significant QTL for flesh colour (Chr 6, Chr 26 and Chr 4). In addition, 32 suggestive QTL were detected (chromosome-wide P < 0.05). Using the half-sib model, six genome-wide significant QTL were detected for all traits, including two for flesh colour (Chr 26 and Chr 4) and 41 suggestive QTL were detected (chromosome-wide P < 0.05). Based on the half-sib analysis, these two genome-wide significant QTL for flesh colour explained 24% of the phenotypic variance for this trait. Conclusions A large number of significant and suggestive QTL for flesh colour and growth traits were found in an F2 population of Atlantic salmon. Chr 26 and Chr 4 presented the strongest evidence for significant QTL affecting flesh colour, while Chr 10, Chr 5, and Chr 4 presented the strongest evidence for ... |
format |
Article in Journal/Newspaper |
author |
Moen Thomas Baranski Matthew Våge Dag |
author_facet |
Moen Thomas Baranski Matthew Våge Dag |
author_sort |
Moen Thomas |
title |
Mapping of quantitative trait loci for flesh colour and growth traits in Atlantic salmon ( Salmo salar ) |
title_short |
Mapping of quantitative trait loci for flesh colour and growth traits in Atlantic salmon ( Salmo salar ) |
title_full |
Mapping of quantitative trait loci for flesh colour and growth traits in Atlantic salmon ( Salmo salar ) |
title_fullStr |
Mapping of quantitative trait loci for flesh colour and growth traits in Atlantic salmon ( Salmo salar ) |
title_full_unstemmed |
Mapping of quantitative trait loci for flesh colour and growth traits in Atlantic salmon ( Salmo salar ) |
title_sort |
mapping of quantitative trait loci for flesh colour and growth traits in atlantic salmon ( salmo salar ) |
publisher |
BMC |
publishDate |
2010 |
url |
https://doi.org/10.1186/1297-9686-42-17 https://doaj.org/article/83e2de760fb44e2786f08889dff9f9d8 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Genetics Selection Evolution, Vol 42, Iss 1, p 17 (2010) |
op_relation |
http://www.gsejournal.org/content/42/1/17 https://doaj.org/toc/0999-193X https://doaj.org/toc/1297-9686 doi:10.1186/1297-9686-42-17 0999-193X 1297-9686 https://doaj.org/article/83e2de760fb44e2786f08889dff9f9d8 |
op_doi |
https://doi.org/10.1186/1297-9686-42-17 |
container_title |
Genetics Selection Evolution |
container_volume |
42 |
container_issue |
1 |
_version_ |
1766362008125440000 |