Artículos de revistas
Morphological Dimorphism In The Y Chromosome Of 'pe-duro' Cattle In The Brazilian State Of Piauf
Registro en:
Genetics And Molecular Biology. , v. 22, n. 3, p. 369 - 373, 1999.
14154757
2-s2.0-0344117700
Autor
Britto C.M.C.
Mello M.L.S.
Institución
Resumen
'Pe-duro' (hard foot) is a rare breed of beef cattle of European (Bos taurus taurus) origin, originated in northern and northeastern Brazil. Y chromosome morphology, outer genital elements and other phenotypic characteristics were examined in 75 'pe-duro' bulls from the Empresa Brasileira de Pesquisa Agropecuaria (Embrapa) herd in the Brazilian State of Piauf. The purpose was to investigate possible racial contamination with Zebu animals (Bos taurus indicus) in a cattle that has been considered closest to its European origin (B. t. taurus). The presence of both submetacentric and acrocentric Y chromosomes, typical of B. t. taurus and B. t. indicus, respectively, and the larger preputial sheath in bulls with an acrocentric Y chromosome indicated racial contamination of the 'pe-duro' herd with Zebu cattle. Phenotypic parameters involving horn, dewlap, ear, chamfer, and coat color characteristics, indicative of apparent racial contamination, were not associated with acrocentric Y chromosome. 22 3 369 373 Athanassof, N., Raças de gado comum sem aptidões especializadas (1958) Manual do Criador de Bovinos, pp. 191-214. , Melhoramentos, São Paulo Benjamin, B.R., Bhat, P.N., Chromosomal studies on cattle with special reference to crossbreeding (1977) Indian J. Anim. Sci., 47, pp. 4-7 Bodó, I., Maintenance of living herds of large farm animals (1984) Manual for Training Courses on the Animal Genetic Resources Conservation and Management, 2, pp. 37-47. , Food and Agriculture Organization of the United Nations (FAO). Budapest Britto, C.M.C., (1998) Citogenética do Gado Pé-duro, , EDUFPI, Teresina Camargo, A.H.A., Ganado criollo del Brasil: Origen y características zootecnicas (1990) Boletin de Información Sobre Recursos Genéticos Animales, pp. 11-16. , FAO & UNEP, Roma Carvalho, J.H., (1983) Gado Pé-duro: Esperança de Preservação, 42, p. 4. , BNB Notícias, Fortaleza Carvalho, J.H., (1984) Relatório de Atividades do Núcleo de Preservação do Gado Pé-duro ou Curraleiro, , EMBRAPA, Unidade de Execução de Pesquisa de Âmbito Estadual/UEPAE de Teresina Carvalho, J.H., Pé-duro, patrimônio preservado no Piauí (1985) Dirigente Rural, 24, pp. 26-28 Gupta, P., Singh, L., Ray-Chaudhuri, S.P., Chromosomes of Indian breeds of cattle (1974) Nucleus, 17, pp. 129-132 Halnan, C.R.E., Chromosomes of cattle: Present clinical status and promise (1975) Vet. Rec., 96, pp. 148-151 Jorge, W., (1970) Cariologia Comparada de Algumas Raças de B. Taurus Taurus (L.), B. Taurus Indicus (L.) e de Seus Cruzamentos, , Master's thesis, UNESP, Botucatu Jorge, W., Chromosome study of some breeds of cattle (1974) Caryologia, 27, pp. 325-329 Kidd, K.K., Stone, W.H., Crimella, C., Carenzi, C., Casati, M., Rognoni, G., Immunogenetic and population genetic analyses of Iberian cattle (1980) Anim. Blood Groups Biochem. Genet., 11, pp. 21-38 Kieffer, N.M., Cartwright, T.C., Sex chromosome polymorphism in domestic cattle (1968) J. Hered., 59, pp. 35-37 Luz, M.R., Giannoni, M.A., Estudo biométrico do cariótipo da sub-espécie Bos taurus indicus (1978) Científica, 6, pp. 105-119 Moorhead, P.S., Nowell, P.C., Mellmann, W.J., Battibs, D.M., Hungeford, D.A., Chromosome preparations of leukocytes cultured from human peripheral blood (1960) Expt. Cell Res., 20, pp. 613-616 Pinheiro, L.E.L., Ferrari, I., Lobo, R.B., Robertsonian translocation in imported bulls utilized at artificial insemination centers in Brazil (1979) Rev. Bras. Genét., 11, pp. 135-143 Pinheiro, L.E.L., Erdtman, B., Mattevi, M.S., Mies Filho, A., Análise citogenética em bovinos da raça ibagé (1979) Científica, pp. 29-32. , Special No Santiago, A.A., (1975) Os Cruzamentos na Pecuária Bovina, pp. 254-255. , Instituto de Zootecnia, São Paulo Tambasco, A.J., (1976) Contribuição ao Estudo Citogenético em Bovinos Normais e em Bovinos com Problemas de Reprodução, , Doctoral thesis, Faculdade de Medicina, USP, Ribeirão Preto Tambasco, A.J., Trovo, J.B.F., Barbosa, P.F., Estudo cromossômico em raças naturalizadas de bovinos. 22a (1985) Reunião Anual Da Sociedade Brasileira de Zootecnia, Camboriú, p. 154. , Anais