title: Novel SNPs in the Ankyrin 1 gene and their association with beef quality traits.
abstract: Single nucleotide polymorphisms (SNPs) in the promoter region of bovine Ankyrin 1 (ANK1) have been associated with tenderness and intramuscular fat level in beef. The objectives of this study were to characterise novel DNA variants in the coding region of bovine ANK1 and test for association with beef quality traits. A 3kb region of ANK1 cDNA was amplified and sequenced in 32 Charolais cattle using five sets of overlapping primers. Eighteen SNPs were identified and a predicted exon was confirmed. An in silico translation indicated that SNP4 and SNP16 were non-conservative. Three SNPs were genotyped in 158 crossbred cattle (n=158) with associated meat quality data. SNP6 was associated with texture scores while SNP17 was associated with juiciness. Haplotype (cHAP) 1 was associated with lightness, redness, ultimate pH, as well as sarcomere length. Alleles of the ANK1 gene could be potential targets for gene-assisted selection to improve a range of meat quality traits in beef.
authors.affiliation: Teagasc Food Research Centre, Ashtown, Dublin 15, Ireland; School of Food Science and Environmental Health, DIT Cathal Brugha Street, Dublin 1, Ireland.
authors.forename: J
authors.initials: J
authors.lastname: Horodyska
authors.affiliation: UCD School of Veterinary Medicine, Belfield, Dublin 4, Ireland.
authors.forename: T
authors.initials: T
authors.lastname: Sweeney
authors.affiliation: UCD School of Veterinary Medicine, Belfield, Dublin 4, Ireland.
authors.forename: M
authors.initials: M
authors.lastname: Ryan
authors.affiliation: Teagasc Food Research Centre, Ashtown, Dublin 15, Ireland. Electronic address: ruth.hamill@teagasc.ie.
authors.forename: R M
authors.initials: RM
authors.lastname: Hamill
mesh_terms: D000483:Alleles; D000818:Animals; D017487:Ankyrins / Q000235:genetics*; D001947:Breeding; D002417:Cattle / Q000235:genetics*; D063427:Food Quality; D056726:Genetic Association Studies; D060005:Genotyping Techniques; D006239:Haplotypes; D006863:Hydrogen-Ion Concentration; D010641:Phenotype; D020641:Polymorphism, Single Nucleotide; D000069466:Red Meat / Q000032:analysis*; D012518:Sarcomeres / Q000737:chemistry; D017422:Sequence Analysis, DNA
chemical_list: D017487:Ankyrins
keywords: Cattle; Colour; Meat; Polymorphism; Tenderness