A SNP in the 5′ flanking region of the myostatin-1b gene is associated with harvest traits in Atlantic salmon (Salmo salar)
Abstract Background Myostatin (MSTN) belongs to the transforming growth factor-β superfamily and is a potent negative regulator of skeletal muscle development and growth in mammals. Most teleost fish possess two MSTN paralogues. However, as a consequence of a recent whole genome-duplication event, s...
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ftbiomed:oai:biomedcentral.com:1471-2156-14-112 2023-05-15T15:30:15+02:00 A SNP in the 5′ flanking region of the myostatin-1b gene is associated with harvest traits in Atlantic salmon (Salmo salar) Peñaloza, Carolina Hamilton, Alastair Guy, Derrick R Bishop, Stephen C Houston, Ross D 2013-11-27 http://www.biomedcentral.com/1471-2156/14/112 en eng BioMed Central Ltd. http://www.biomedcentral.com/1471-2156/14/112 Copyright 2013 Peñaloza et al.; licensee BioMed Central Ltd. Association analysis Atlantic salmon Myostatin Aquaculture Marker-assisted selection Research article 2013 ftbiomed 2013-12-08T01:23:28Z Abstract Background Myostatin (MSTN) belongs to the transforming growth factor-β superfamily and is a potent negative regulator of skeletal muscle development and growth in mammals. Most teleost fish possess two MSTN paralogues. However, as a consequence of a recent whole genome-duplication event, salmonids have four: MSTN-1 (− 1a and - 1b ) and MSTN-2 (− 2a and - 2b ). Evidence suggests that teleost MSTN plays a role in the regulation of muscle growth. In the current study, the MSTN-1b gene was re-sequenced and screened for SNP markers in a commercial population of Atlantic salmon. After genotyping 4,800 progeny for the discovered SNPs, we investigated their association with eight harvest traits - four body-weight traits, two ratios of weight traits, flesh colour and fat percentage - using a mixed model association analysis. Results Three novel SNPs were discovered in the MSTN-1b gene of Atlantic salmon. One of the SNPs, located within the 5′ flanking region ( g.1086C > T ), had a significant association with harvest traits (p < 0.05), specifically for: Harvest Weight (kg), Gutted Weight (kg), Deheaded Weight (kg) and Fillet Weight (kg). The haplotype-based association analysis was consistent with this result because the two haplotypes that showed a significant association with body-weight traits, hap4 and hap5 (p < 0.05 and p < 0.01, respectively), differ by a single substitution at the g.1086C > T locus. The alleles at g.1086C > T act in an additive manner and explain a small percentage of the genetic variation of these phenotypes. Conclusions The association analysis revealed that g.1086C > T had a significant association with all body-weight traits under study. Although the SNP explains a small percentage of the variance, our results indicate that a variation in the 5′ flanking region of the myostatin gene is associated with the genetic regulation of growth in Atlantic salmon. Article in Journal/Newspaper Atlantic salmon Salmo salar BioMed Central |
institution |
Open Polar |
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BioMed Central |
op_collection_id |
ftbiomed |
language |
English |
topic |
Association analysis Atlantic salmon Myostatin Aquaculture Marker-assisted selection |
spellingShingle |
Association analysis Atlantic salmon Myostatin Aquaculture Marker-assisted selection Peñaloza, Carolina Hamilton, Alastair Guy, Derrick R Bishop, Stephen C Houston, Ross D A SNP in the 5′ flanking region of the myostatin-1b gene is associated with harvest traits in Atlantic salmon (Salmo salar) |
topic_facet |
Association analysis Atlantic salmon Myostatin Aquaculture Marker-assisted selection |
description |
Abstract Background Myostatin (MSTN) belongs to the transforming growth factor-β superfamily and is a potent negative regulator of skeletal muscle development and growth in mammals. Most teleost fish possess two MSTN paralogues. However, as a consequence of a recent whole genome-duplication event, salmonids have four: MSTN-1 (− 1a and - 1b ) and MSTN-2 (− 2a and - 2b ). Evidence suggests that teleost MSTN plays a role in the regulation of muscle growth. In the current study, the MSTN-1b gene was re-sequenced and screened for SNP markers in a commercial population of Atlantic salmon. After genotyping 4,800 progeny for the discovered SNPs, we investigated their association with eight harvest traits - four body-weight traits, two ratios of weight traits, flesh colour and fat percentage - using a mixed model association analysis. Results Three novel SNPs were discovered in the MSTN-1b gene of Atlantic salmon. One of the SNPs, located within the 5′ flanking region ( g.1086C > T ), had a significant association with harvest traits (p < 0.05), specifically for: Harvest Weight (kg), Gutted Weight (kg), Deheaded Weight (kg) and Fillet Weight (kg). The haplotype-based association analysis was consistent with this result because the two haplotypes that showed a significant association with body-weight traits, hap4 and hap5 (p < 0.05 and p < 0.01, respectively), differ by a single substitution at the g.1086C > T locus. The alleles at g.1086C > T act in an additive manner and explain a small percentage of the genetic variation of these phenotypes. Conclusions The association analysis revealed that g.1086C > T had a significant association with all body-weight traits under study. Although the SNP explains a small percentage of the variance, our results indicate that a variation in the 5′ flanking region of the myostatin gene is associated with the genetic regulation of growth in Atlantic salmon. |
format |
Article in Journal/Newspaper |
author |
Peñaloza, Carolina Hamilton, Alastair Guy, Derrick R Bishop, Stephen C Houston, Ross D |
author_facet |
Peñaloza, Carolina Hamilton, Alastair Guy, Derrick R Bishop, Stephen C Houston, Ross D |
author_sort |
Peñaloza, Carolina |
title |
A SNP in the 5′ flanking region of the myostatin-1b gene is associated with harvest traits in Atlantic salmon (Salmo salar) |
title_short |
A SNP in the 5′ flanking region of the myostatin-1b gene is associated with harvest traits in Atlantic salmon (Salmo salar) |
title_full |
A SNP in the 5′ flanking region of the myostatin-1b gene is associated with harvest traits in Atlantic salmon (Salmo salar) |
title_fullStr |
A SNP in the 5′ flanking region of the myostatin-1b gene is associated with harvest traits in Atlantic salmon (Salmo salar) |
title_full_unstemmed |
A SNP in the 5′ flanking region of the myostatin-1b gene is associated with harvest traits in Atlantic salmon (Salmo salar) |
title_sort |
snp in the 5′ flanking region of the myostatin-1b gene is associated with harvest traits in atlantic salmon (salmo salar) |
publisher |
BioMed Central Ltd. |
publishDate |
2013 |
url |
http://www.biomedcentral.com/1471-2156/14/112 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
http://www.biomedcentral.com/1471-2156/14/112 |
op_rights |
Copyright 2013 Peñaloza et al.; licensee BioMed Central Ltd. |
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1766360689882955776 |