Evaluation of single-nucleotide polymorphisms in CAPN1 for association with meat tenderness in cattle

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dc.creatorPage, B.T.
dc.creatorCasas, E.
dc.creatorHeaton, M.P.
dc.creatorCullen, N.G.
dc.creatorHyndman, D.L.
dc.creatorMorris, C.A.
dc.creatorCrawford, A.M.
dc.creatorWheeler, T.L.
dc.creatorKoohmaraie, M.
dc.creatorKeele, J.W.
dc.creatorSmith, T.P.L.
dc.date2002
dc.date2013-07-03T05:25:52Z
dc.date2013-07-03T05:25:52Z
dc.date.accessioned2026-06-27T16:36:27Z
dc.descriptionMicromolar calcium activated neutral protease (CAPN1) was evaluated as a candidate gene for a quantitative trait locus (QTL) on BTA29 affecting meat tenderness by characterization of nucleotide sequence variation in the gene. Single-nucleotide polymorphisms (SNP) were identified by sequencing all 22 exons and 19 of the 21 introns in two sires (Piedmontese X Angus located at the U.S. Meat Animal Research Centre in Clay Centre, NE; Jersey X Limousin located at AgResearch in New Zealand) of independent resource populations previously shown to be segregating meat tenderness QTL on BTA29. The majority of the 38 SNP were found in introns or were synonymous substitutions in the coding regions, with two exceptions. Exons 14 and 9 contained SNP that were predicted to alter the protein sequence by the substitution of isoleucine for valine in Domain III of the protein, and alanine for glycine in Domain II of the protein. The resource populations were genotyped for these two SNP in addition to six intronic polymorphisms and two silent substitutions. Analysis of genotypes and shear force values in both populations revealed a difference between paternal CAPN1 alleles in which the allele encoding isoleucine at position 530 and glycine at position 316 associated with decreased meat tenderness (increased shear force values) relative to the allele encoding valine at position 530 and alanine at position 316 (P < 0.05). The association of maternal alleles with meat tenderness phenotypes is consistent with the hypothesis of CAPN1 as the gene underlying the QTL effect in two independent resource populations and presents the possibility of using these markers for selective breeding to reduce the numbers of animals with unfavourable meat tenderness traits.
dc.identifierhttps://hdl.handle.net/10568/32977
dc.identifier.urihttp://hdl.handle.net/123456789/127974
dc.languageen
dc.rightsLimited Access
dc.sourceJournal of Animal Science;80(12): 3077-3085
dc.subjectcattle
dc.subjectcalpain
dc.subjectamino acid sequences
dc.subjectbeef
dc.subjectbeef cattle
dc.subjectexons
dc.subjectgenes
dc.subjectgenetic polymorphism
dc.subjectgenetic variation
dc.subjectintrons
dc.subjectmeat quality
dc.subjectnucleotide sequences
dc.subjectproteinases
dc.subjectquantitative trait loci
dc.subjecttenderness
dc.titleEvaluation of single-nucleotide polymorphisms in CAPN1 for association with meat tenderness in cattle
dc.typeJournal Article

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Instituto Internacional de Investigaciones Pecuarias (ILRI)