title: Effect of a major QTL affecting IPN resistance on production traits in Atlantic salmon.
abstract: This study investigated the effect of a major QTL for resistance to IPN in salmon on performance and production traits. The traits studied were related to growth, fillet and gutted yields, and fat content. Two different analyses were performed: (1) regression of the phenotypic data of the production traits on the predicted number of resistant IPN-QTL alleles in individuals and (2) a variance component analysis using the (co)variance matrix calculated at the putative location of the QTL. No significant effect of the QTL was detected on any of the traits investigated by either method. The result has important practical implications in that it encourages the use of MAS to reduce the risks and impact of IPN mortality.
authors.affiliation: The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Roslin Biocentre, UK. agheyas@swim-back.com
authors.forename: A A
authors.initials: AA
authors.lastname: Gheyas
authors.forename: C S
authors.initials: CS
authors.lastname: Haley
authors.forename: D R
authors.initials: DR
authors.lastname: Guy
authors.forename: A
authors.initials: A
authors.lastname: Hamilton
authors.forename: A E
authors.initials: AE
authors.lastname: Tinch
authors.forename: J C
authors.initials: JC
authors.lastname: Mota-Velasco
authors.forename: J A
authors.initials: JA
authors.lastname: Woolliams
mesh_terms: D000483:Alleles; D000704:Analysis of Variance; D000818:Animals; D018175:Birnaviridae Infections; D001837:Body Weights and Measures / Q000662:veterinary; D004198:Disease Susceptibility / Q000662:veterinary; D005393:Fish Diseases / Q000235:genetics* / Q000821:virology; D005819:Genetic Markers; D005838:Genotype; D018061:Infectious pancreatic necrosis virus / Q000378:metabolism; D010182:Pancreatic Diseases / Q000235:genetics / Q000662:veterinary*; D010641:Phenotype; D040641:Quantitative Trait Loci; D020317:Salmo salar / Q000235:genetics*
chemical_list: D005819:Genetic Markers