02300naa a2200337 a 450000100080000000500110000800800410001910000180006024501150007826000090019350001550020252012030035765000130156065000160157365000130158965000160160265000180161865300140163665300230165065300140167365300240168765300110171170000160172270000140173870000220175270000250177470000260179970000230182570000230184877300910187119901642017-06-01       2014    bl uuuu     u00u1 u    #d1 aBORGES, B. O.  aPolymorphisms in candidate genes and their association with carcass traits and meat quality in Nellore cattle.  c2014  aTítulo em português: Polimorfismos em genes-candidatos e suas associações com características de carcaça e qualidade da carne em bovinos Nelore.  aThe objective of this work was to estimate the allele polymorphism frequencies of genes in Nellore cattle and associate them with meat quality and carcass traits. Six hundred males were genotyped for the following polymorphisms: DGAT1 (VNTR with 18 nucleotides at the promoter region); ANK1, a new polymorphism, identified and mapped here at the gene regulatory region NW_001494427.3; TCAP (AY428575.1:g.346G&gtA); and MYOG (NW_001501985:g.511G&gtC). In the association study, phenotype data of hot carcass weight, ribeye area, backfat thickness, percentage of intramuscular fat, shear force, myofibrillar fragmentation index, meat color (L*, a*, b*), and cooking losses were used. Allele B from the ANK1 gene was associated with greater redness (a*). Alleles 5R, 6R, and 7R from the DGAT1 VNTR gene were associated with increased intramuscular fat, reduced cooking losses and increased ribeye area, respectively. The single nucleotide polymorphism (SNP) of the TCAP gene was not polymorphic, and MYOG alleles were not associated with any of the evaluated characteristics. These results indicate that ANK1 and DGAT1 genes can be used in the selection of Nellore cattle for carcass and meat quality.  aAnkyrins  aBeef cattle  amyogenin  aBos Indicus  aGado de corte  aAnquirina  aAssisted selection  aMiogenina  aSeleção assistida  aTitina1 aCURI, R. A.1 aBALDI, F.1 aFEITOSA, F. L. B.1 aANDRADE, W. B. F. de1 aALBUQUERQUE, L. G. de1 aOLIVEIRA, H. N. de1 aCHARDULO, L. A. L.  tPesquisa Agropecuária Brasileira, Brasília, DFgv. 49, n. 5, p. 364-371, maio. 2014.