Mapping of quantitative trait loci associated with size, shape, and parr mark traits using first and second generation backcrosses between European and North American Atlantic salmon (Salmo salar)
Little is known about the genetic architecture of traits important for salmonid restoration ecology. We mapped quantitative trait loci (QTL) using single nucleotide polymorphisms (SNPs) for juvenile body length, weight, shape, and vertical skin pigmentation patterns (parr marks) within three hybrid...
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ftunivtoronto:oai:localhost:1807/80498 2023-05-15T15:31:03+02:00 Mapping of quantitative trait loci associated with size, shape, and parr mark traits using first and second generation backcrosses between European and North American Atlantic salmon (Salmo salar) Pedersen, Stephanie Liu, Lei Glebe, Brian Leadbeater, Steven Lien, Sigbjørn Boulding, Elizabeth G. 2017-09-12 http://hdl.handle.net/1807/80498 http://www.nrcresearchpress.com/doi/abs/10.1139/gen-2017-0026 unknown NRC Research Press (a division of Canadian Science Publishing) 0831-2796 http://hdl.handle.net/1807/80498 http://www.nrcresearchpress.com/doi/abs/10.1139/gen-2017-0026 Article 2017 ftunivtoronto 2020-06-17T12:08:09Z Little is known about the genetic architecture of traits important for salmonid restoration ecology. We mapped quantitative trait loci (QTL) using single nucleotide polymorphisms (SNPs) for juvenile body length, weight, shape, and vertical skin pigmentation patterns (parr marks) within three hybrid backcross families between European and North American subspecies of Atlantic salmon. Amounts of variation in skin colour and pattern quantified in the two second-generation transAtlantic families exceeded the ranges seen in purebred populations. GridQTL analyses using low-density female linkage maps detected QTL showing experiment-wide significance on Ssa02, Ssa03, Ssa09, Ssa11, Ssa19, and Ssa26/28 for both length and weight, on Ssa04 and Ssa23 for parr mark number, on Ssa09, Ssa13 for parr mark contrast, and on Ssa05, Ssa07, Ssa10, Ssa11, Ssa18, Ssa23, and Ssa26/28 for geometric morphometric shape co-ordinates. Pleiotrophic QTL on Ssa11 affected length, weight, and shape. No QTL was found that explained more than 10% of the phenotypic variance in pigmentation or shape traits. Each QTL was approximately positioned on the physical map of the Atlantic salmon genome. Some QTL locations confirmed previous studies but many were new. Studies like ours may increase the success of salmon restoration projects by enabling better phenotypic and genetic matching between introduced and extirpated strains. The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author. Article in Journal/Newspaper Atlantic salmon Salmo salar University of Toronto: Research Repository T-Space |
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Open Polar |
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University of Toronto: Research Repository T-Space |
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ftunivtoronto |
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unknown |
description |
Little is known about the genetic architecture of traits important for salmonid restoration ecology. We mapped quantitative trait loci (QTL) using single nucleotide polymorphisms (SNPs) for juvenile body length, weight, shape, and vertical skin pigmentation patterns (parr marks) within three hybrid backcross families between European and North American subspecies of Atlantic salmon. Amounts of variation in skin colour and pattern quantified in the two second-generation transAtlantic families exceeded the ranges seen in purebred populations. GridQTL analyses using low-density female linkage maps detected QTL showing experiment-wide significance on Ssa02, Ssa03, Ssa09, Ssa11, Ssa19, and Ssa26/28 for both length and weight, on Ssa04 and Ssa23 for parr mark number, on Ssa09, Ssa13 for parr mark contrast, and on Ssa05, Ssa07, Ssa10, Ssa11, Ssa18, Ssa23, and Ssa26/28 for geometric morphometric shape co-ordinates. Pleiotrophic QTL on Ssa11 affected length, weight, and shape. No QTL was found that explained more than 10% of the phenotypic variance in pigmentation or shape traits. Each QTL was approximately positioned on the physical map of the Atlantic salmon genome. Some QTL locations confirmed previous studies but many were new. Studies like ours may increase the success of salmon restoration projects by enabling better phenotypic and genetic matching between introduced and extirpated strains. The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author. |
format |
Article in Journal/Newspaper |
author |
Pedersen, Stephanie Liu, Lei Glebe, Brian Leadbeater, Steven Lien, Sigbjørn Boulding, Elizabeth G. |
spellingShingle |
Pedersen, Stephanie Liu, Lei Glebe, Brian Leadbeater, Steven Lien, Sigbjørn Boulding, Elizabeth G. Mapping of quantitative trait loci associated with size, shape, and parr mark traits using first and second generation backcrosses between European and North American Atlantic salmon (Salmo salar) |
author_facet |
Pedersen, Stephanie Liu, Lei Glebe, Brian Leadbeater, Steven Lien, Sigbjørn Boulding, Elizabeth G. |
author_sort |
Pedersen, Stephanie |
title |
Mapping of quantitative trait loci associated with size, shape, and parr mark traits using first and second generation backcrosses between European and North American Atlantic salmon (Salmo salar) |
title_short |
Mapping of quantitative trait loci associated with size, shape, and parr mark traits using first and second generation backcrosses between European and North American Atlantic salmon (Salmo salar) |
title_full |
Mapping of quantitative trait loci associated with size, shape, and parr mark traits using first and second generation backcrosses between European and North American Atlantic salmon (Salmo salar) |
title_fullStr |
Mapping of quantitative trait loci associated with size, shape, and parr mark traits using first and second generation backcrosses between European and North American Atlantic salmon (Salmo salar) |
title_full_unstemmed |
Mapping of quantitative trait loci associated with size, shape, and parr mark traits using first and second generation backcrosses between European and North American Atlantic salmon (Salmo salar) |
title_sort |
mapping of quantitative trait loci associated with size, shape, and parr mark traits using first and second generation backcrosses between european and north american atlantic salmon (salmo salar) |
publisher |
NRC Research Press (a division of Canadian Science Publishing) |
publishDate |
2017 |
url |
http://hdl.handle.net/1807/80498 http://www.nrcresearchpress.com/doi/abs/10.1139/gen-2017-0026 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
0831-2796 http://hdl.handle.net/1807/80498 http://www.nrcresearchpress.com/doi/abs/10.1139/gen-2017-0026 |
_version_ |
1766361535039406080 |