title: Associations between single nucleotide polymorphisms in multiple candidate genes and carcass and meat quality traits in a commercial Angus-cross population.
abstract: The aim of this study was to evaluate the effects of 28 single nucleotide polymorphisms (SNP) in 10 candidate genes previously shown to be associated with quality traits in pigs and cattle. The data set comprised 28 traits recorded on a commercial population of 536 Aberdeen Angus-cross beef cattle. Among the traits, 20 were carcass and sirloin quality related, one mechanical measure of tenderness, and the remaining seven were taste panel assessed sensory traits. The candidate genes studied included growth hormone (GH) and pro-opiomelanocortin (POMC). Association analysis showed that 13 of the 28 SNPs were significantly associated with at least one of the traits. Some of these were novel (POMC and mechanical tenderness), whilst others confirmed previous results (GH and eye muscle length). Following validation in other populations and breeds, these markers could be incorporated into breeding programs to increase the rate of improvement in carcass and meat quality traits.
authors.affiliation: The Roslin Institute and Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Roslin BioCentre, Roslin, Midlothian EH25 9PS, UK. jennifer.gill@pharmacy.ac.uk
authors.forename: Jennifer L
authors.initials: JL
authors.lastname: Gill
authors.forename: Stephen C
authors.initials: SC
authors.lastname: Bishop
authors.forename: Caroline
authors.initials: C
authors.lastname: McCorquodale
authors.forename: John L
authors.initials: JL
authors.lastname: Williams
authors.forename: Pamela
authors.initials: P
authors.lastname: Wiener
mesh_terms: D000818:Animals; D001947:Breeding; D002417:Cattle / Q000235:genetics*; D005524:Food Technology; D056726:Genetic Association Studies; D005819:Genetic Markers; D013006:Growth Hormone / Q000235:genetics; D006801:Humans; D008460:Meat / Q000032:analysis* / Q000592:standards; D020641:Polymorphism, Single Nucleotide; D011333:Pro-Opiomelanocortin / Q000235:genetics
chemical_list: D005819:Genetic Markers; D011333:Pro-Opiomelanocortin; D013006:Growth Hormone