Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/534365
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Campo DCValorIdioma
dc.contributor.authorLÔBO, A. M. B. O.
dc.contributor.authorLÔBO, R. N. B.
dc.contributor.authorPAIVA, S. R.
dc.date.accessioned2023-07-11T10:24:11Z-
dc.date.available2023-07-11T10:24:11Z-
dc.date.created2009-09-24
dc.date.issued2009
dc.identifier.citationGenetics and Molecular Biology, v. 32, n. 3, p. 484-490, 2009.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/534365-
dc.descriptionAbstract: We determined the polymorphism C242T of the aromatase gene (Cyp19) and its allelic frequency, as well as the effect of the variants on productive and reproductive traits in 71 purebred Santa Inês sheep, 13 purebred Brazilian Somali sheep, nine purebred Poll Dorset sheep, and 18 crossbred 1/2 Dorper sheep. The animals were genotyped using the PCR-RFLP technique. The influence of the animal's genotype on its performance or on the performance of its lambs was analyzed by the least square method. Another factor assessed was the importance of the animal's genotype in analysis models for quantitative breeding value estimates, and whether there were differences among the averages of breeding values of animals with different genotypes for this gene. In the sample studied, no AA individuals were observed; the AB and BB frequencies were 0.64 and 0.36, respectively. All Brazilian Somali sheep were of genotype BB. All 1/2 Dorper BB animals presented a lower age at first lambing, and the Santa Inês BB ewes presented a lower lambing interval. In these same genetic groups, AB ewes presented higher litter weight at weaning. This is evidence that BB ewes have a better reproductive performance phenotype, whereas AB ewes present a better maternal ability phenotype. However, in general, animals with genotype AB presented better average breeding values than those with genotype BB.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectPeso corporal
dc.subjectPCR-RFLP
dc.subjectSNP
dc.subjectBrasil
dc.subjectLambing interval
dc.titleAromatase gene and its effects on growth, reproductive and material ability traits in a multibreed sheep from Brazil.
dc.typeArtigo de periódico
dc.subject.thesagroOvino
dc.subject.thesagroPolimorfismo Genético
dc.subject.nalthesaurusSheep
dc.subject.nalthesaurusBody weight
dc.subject.nalthesaurusLitter weight
dc.subject.nalthesaurusPolymorphism
dc.subject.nalthesaurusGenetic polymorphism
dc.subject.nalthesaurusGenotype
dc.subject.nalthesaurusAnimal geneticseng
dc.subject.nalthesaurusGenetic variationeng
dc.subject.nalthesaurusBrazileng
riaa.ainfo.id534365
riaa.ainfo.lastupdate2023-07-10
dc.identifier.doihttp://dx.doi.org/10.1590/S1415-47572009005000054
dc.contributor.institutionAna Maria Bezerra Oliveira Lôbo, pós-graduanda UFV; Raimundo Nonato Braga Lôbo, Embrapa Caprinos e Ovinos (CNPC); Samuel Rezende Paiva, Embrapa Recursos Genéticos e Biotecnologia.
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