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dc.contributor.authorTian, R.-
dc.contributor.authorPitchford, W.-
dc.contributor.authorMorris, C.-
dc.contributor.authorCullen, N.-
dc.contributor.authorBottema, C.-
dc.identifier.citationAnimal Genetics, 2010; 41(3):253-259-
dc.description.abstractbeta, beta-carotene-9', 10'-dioxygenase (BCO2) plays a role in cleaving beta-carotene eccentrically, and may be involved in the control of adipose and milk colour in cattle. The bovine BCO2 gene was sequenced as a potential candidate gene for a beef fat colour QTL on chromosome (BTA) 15. A single nucleotide base change located in exon 3 causes the substitution of a stop codon (encoded by the A allele) for tryptophan(80) (encoded by the G allele) (c. 240G>A, p.Trp80stop, referred to herein as SNP W80X). Association analysis showed significant differences in subcutaneous fat colour and beta-carotene concentration amongst cattle with different BCO2 genotypes. Animals with the BCO2 AA genotype had more yellow beef fat and a higher beta-carotene concentration in adipose tissues than those with the GA or GG genotype. QTL mapping analysis with the BCO2 SNP W80X fitted as a fixed effect confirmed that this SNP is likely to represent the quantitative trait nucleotide (QTN) for the fat colour-related traits on BTA 15. Moreover, animals with the AA genotype had yellower milk colour and a higher concentration of beta-carotene in the milk.-
dc.description.statementofresponsibilityR. Tian, W. S. Pitchford, C. A. Morris, N. G. Cullen and C. D. K. Bottema-
dc.publisherBlackwell Publishing Ltd-
dc.rights© 2009 The Authors, Journal compilation © 2009 Stichting International Foundation for Animal Genetics-
dc.subjectfat colour-
dc.subjectmilk colour-
dc.subjectsubcutaneous fat.-
dc.titleGenetic variation in the β, β-carotene-9′, 10′-dioxygenase gene and association with fat colour in bovine adipose tissue and milk-
dc.title.alternativeGenetic variation in the beta, beta-carotene-9', 10'-dioxygenase gene and association with fat colour in bovine adipose tissue and milk-
dc.typeJournal article-
dc.identifier.orcidPitchford, W. [0000-0002-5213-3978]-
dc.identifier.orcidBottema, C. [0000-0001-6245-0099]-
Appears in Collections:Agriculture, Food and Wine publications
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