Quantitative trait loci for precocious parr maturation, early smoltification, and adult maturation in double-backcrossed trans-Atlantic salmon (Salmo salar)

Pedersen, Stephanie; Berg, Paul R.; Culling, Mark; Danzmann, Roy G.; Glebe, B.; Leadbeater, S.; Lien, Sigbjørn; Moen, Thomas; Vandersteen, Wendy E.; Boulding, Elizabeth G.

doi:10.1016/j.aquaculture.2013.06.039

Cited by 27 publications

(40 citation statements)

References 49 publications

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“…In our study, Ssa02, Ssa11, Ssa15, Ssa18, and Ssa19 were found to contain growth QTLs showing experimentwide significance, so it is not surprising that they have been detected in other studies. Ssa02 has been previously reported to contain growth QTL (Reid et al 2005;Boulding et al 2008;Houston et al 2009;Gutierrez et al 2012;Pedersen et al 2013). Ssa11 was also found to contain growth QTL in the transAtlantic backcross families of Boulding et al (2008), and Pedersen et al (2013), and in previous studies using European salmon (Houston et al 2009;Gutierrez et al 2012;Besnier et al 2015).…”

Section: Length and Weightmentioning

confidence: 62%

“…Ssa02 has been previously reported to contain growth QTL (Reid et al 2005;Boulding et al 2008;Houston et al 2009;Gutierrez et al 2012;Pedersen et al 2013). Ssa11 was also found to contain growth QTL in the transAtlantic backcross families of Boulding et al (2008), and Pedersen et al (2013), and in previous studies using European salmon (Houston et al 2009;Gutierrez et al 2012;Besnier et al 2015). Ssa15 (Reid et al 2005;Gutierrez et al 2012), Ssa18 (Gutierrez et al 2012;Tsai et al 2015), and Ssa19 (Gutierrez et al 2012) have also previously been reported to contain growth QTLs.…”

Section: Length and Weightmentioning

confidence: 65%

“…Several studies have mapped QTL for growth-related traits in Atlantic salmon due to their economic importance in cultured fish (Reid et al 2005;Boulding et al 2008;Houston et al 2009;Baranski et al 2010;Gutierrez et al 2012;Pedersen et al 2013;Besnier et al 2015;Tsai et al 2015). A recent analysis of growth QTL mapping studies shows that QTL for length, weight, and condition factor often mapped to the same chromosome in different studies ( fig.…”

Section: Length and Weightmentioning

confidence: 99%

“…A previously suggested candidate gene for length and weight QTL is insulin growth factor 2 (igf2bp1; Reinecke et al 2005;Pedersen et al 2013;Tsai et al 2014), which is located on Ssa03 (57.61-57.67 Mb). However, igf2bp1 is an equivocal candidate gene in the current study because it was 9.2 Mb upstream from QTL segregating in Cross 4 for parr weight and for near-smolt length, and for weight 1, weight 2, and length 1 on Ssa03 (Table S6 1 ).…”

Section: Length and Weightmentioning

confidence: 99%

“…We used both sib-pair and half-sib regression methods that are optimized for mapping QTL showing divergence between populations or subspecies (Haley and Knott 1992;Haley et al 1994). We expected that divergent QTL found in second-generation crosses would be on the same chromosome arms but more accurately located (Hayes et al 2006) than those found using first-generation backcrosses because more recombination between the parental chromosomes would have taken place (Boulding et al 2008;Pedersen et al 2013). We also tried to increase accuracy by mapping QTL by focussing on the female-specific map.…”

Section: Introductionmentioning

confidence: 99%

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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

Liu

Glebe

et al. 2018

Genome

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Abstract: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-specific 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 and Ssa13 for parr mark contrast; and on Ssa05, Ssa07, Ssa10, Ssa11, Ssa18, Ssa23, and Ssa26/28 for geometric morphometric shape coordinates. 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.Key words: conservation genetics, geometric morphometrics, parr marks, quantitative trait mapping, single nucleotide polymorphisms.Résumé : Peu de choses sont connues au sujet de l'architecture génétique des caractères importants en matière de l'écologie de rétablissement chez les salmonidés. Les auteurs ont effectué une cartographie QTL à l'aide de marqueurs mononucléotidiques (SNP) pour la taille, la masse, la forme et la pigmentation cutanée verticale (marques de tacon) chez les juvéniles au sein de trois familles hybrides rétrocroisées entre les sous-espèces européennes et nord-américaines du saumon atlantique. La variation pour la couleur et les motifs de la peau a été quantifiée au sein des deux familles transatlantiques de seconde génération et elle excédait celle rencontrée au sein des populations pures. Des analyses GridQTL à l'aide de cartes génétiques femelles à faible densité en marqueurs ont permis de détecter des QTL significatifs sur Ssa02, Ssa03, Ssa09, Ssa11, Ssa19 et Ssa26/28 tant pour la taille que pour la masse, sur Ssa04 et Ssa23 pour le nombre de marques de tacon, sur Ssa09 et Ssa13 pour le contraste des marques de tacon, et sur Ssa05, Ssa07, Ssa10, Ssa11, Ssa18, Ssa23 et Ssa26/28 pour les coordonnées morphométriques géométriques. Des QTL pléiotropiques sur Ssa11 affectaient la taille, la masse et la forme. Aucun QTL expliquant plus de 10 % de la variation phénotypique pour la pigmentation ou la taille n'a été identifié. Chaque QTL a été assigné à une position approximative sur la carte physique du génome du saumon atlantique. Certaines positions de QTL confirmaient celles rapportées dan...

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Section: Length and Weightmentioning

confidence: 62%

Section: Length and Weightmentioning

confidence: 65%

Section: Length and Weightmentioning

confidence: 99%

Section: Length and Weightmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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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

Liu

Glebe

et al. 2018

Genome

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Quantitative Trait Locus Mapping in Aquaculture Species: Principles and Practice

Gutiérrez

Houston

2017

Bioinformatics in Aquaculture

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Precocious Maturation of Hatchery‐Raised Spring Chinook Salmon as Age‐2 Minijacks Is Not Detectably Affected by Sire Age

et al. 2021

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Juvenile males produced in spring Chinook Salmon Oncorhynchus tshawytscha hatchery programs can exhibit high rates of maturation in freshwater as 2-year-old "minijacks." This phenomenon is associated with high feeding rates and increased size and/or growth that juveniles experience in the hatchery environment, though studies also support a genetic component affecting age of maturation among salmonids, including precocious maturation in freshwater. This prompted a study to test whether the age of natural-origin spring Chinook Salmon broodstock affects the rate at which their hatchery-raised male progeny mature as age-2 minijacks. In three consecutive brood years, we factorially

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Quantitative trait loci for precocious parr maturation, early smoltification, and adult maturation in double-backcrossed trans-Atlantic salmon (Salmo salar)

Cited by 27 publications

References 49 publications

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)

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)

Quantitative Trait Locus Mapping in Aquaculture Species: Principles and Practice

Precocious Maturation of Hatchery‐Raised Spring Chinook Salmon as Age‐2 Minijacks Is Not Detectably Affected by Sire Age

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