Full text in pdf format

Genetic characterization of the "Crioula Lanada" sheep from southern Brazil

Luiz E. Henkes^I; Tania de A. Weimer^I; Maria Helena L.P. Franco^I; José C.F. Moraes^II

^IDepartamento de Genética, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Caixa Postal 15053, 91501-970 Porto Alegre, RS, Brasil. Send correspondence to T.A.W.
^IIEMBRAPA-CNPO, Caixa Postal 242, 96400-970 Bagé, RS, Brasil

ABSTRACT

The genetic variability of six protein systems was investigated in a rare wooled sheep (Crioul from Brazil. Genetic distance analysis between titis flock and various Spanish sheep breeds shows great similarity between the Crioula and Lacha breeds, which does not agree with the former's presumed origin. Comparison with Romney Marsh and Corriedale breeds from the same region of Brazil shows great mutual similarity, suggesting gene exchange among these animals.

Keywords: "Crioula Lanada" sheep.

REFERENCES

Baker, C.M.A. and Manwell, C. (1977). Heterozygosity of the sheep: polymorphism of "Malic Enzyme", Isocitrate Dehydrogenase (NADP+), Catalase and Esterase. Aust. J. Biol. Sci. 30: 127-130.

Buis, R.C. and Tucker, E.M. (1983). Relationships between rare breeds of sheep in the Netherlands as based on blood-typing. Anim. Blood Groups Bioch. Genet. 14: 17-26.

Clarke, S.W., Tucker, E.M. and Hall, S.J.G. (1989a). Genetic polymorphisms and their relationships with inbreeding and breed structure in rare British sheep: The Portland, Manx Loghtan and Hebridean. Conserv. Biol. 3: 381-388.

Clarke, S.W., Tucker, E.M. and Osterhoff, D.R. (1989b). Blood groups and biochemical polymorphism in the Namaqua sheep breed. Anim. Genet. 20: 279-286.

Ferguson, K.A. and Wallace, L.C. (1961). Starch gel electrophoresis of anterior pituitary hormones. Nature 190: 629-630.

Harris, H. and Hopkinson, D.A. (1976). Handbook of Enzyme Electrophoresis in human Genetics. North Holland, Amsterdam.

Huehns, E.R. (1968). hemoglobins. In: Cromatographic and Electrophoretic Techniques (Smith, I., ed.). 2th ed., William Heinemann, Great Britain, pp. 291-234.

Imlah, P. (1964). Inherited variants in serum ceruloplasmins of the pig. Nature 203: 658-659.

Krishnamurthy, U.S., Bhuvanakumar, C.K. and Rathnasabapathy, V. (1974). A new albmnin type in Lndian sheep. Anita. Blood Groups Bioch. Genet. 5: 125-127.

Manwell, C. and Baker, C.M.A. (1977). Genetic distance between the Australian Merino and Poll Dorset sheep. Genet. Res. Cambridge 29: 239-253.

Mariante, A.S. and Trovo, J.B.F. (1989). The Brazilian genetic resources conservation programme. Rev. Bras. Genet. 12 (Suppl.): 241-256.

Morera, L., Lianes, D., Barbancho, M. and Rodero, A. (1983). Genetic polymorphism in Spanish Merino sheep. Anim. Blood Groups Bioch. Genet. 14: 77-82.

Munoz, C.E. and Tejon, D.T. (1980). Catalogo de razas autoctonas españolas. I - Especies ovina y caprina. Ministério de Agricultura, Dirección General de la Producion Agrária, Madrid.

Nei, M. (1975). Molecular Population Genetics and Evolution. North Holland, Amsterdam.

Nei, M. (1978). Estimation of average heterozygosity and genetic distance from a small number of individuals. Genetics 89: 583-590.

Rodero, A., Garzón, R., Lianes, D., Zarazaga, I., Vallejo, M. and Monje, E. (1982). Genetic distance between Spanish sheep breeds. Archivos de Zootecnia 31: 97-108.

Rogers, J.S. (1972). Measures of genetic similarity and genetic distance. Studies in Genetics VII: 145-153, University of Texas Publication 7213.

Swofford, D.L. and Selander, R.B. (1981). Biosys-1: a Fortran program for the comprehensive analysis of electrophoretic data in population genetics and systematics. J. Hered 72: 281-283.

Tucker, E.M. (1968). Serum albumin polymorphism in sheep. Vox Sang. 15: 306-308.

Tucker, E.M., Suzuki, Y. and Stormont, C. (1967). Three new phenotypic systems in the blood of sheep. Vox Sang. 13: 246-262.

Valenta, M., Stratil, A., Slechtová, V. Kálal, L. and Slechta, V. (1976). Polymorphism of Transferrin in carp (Cyprinus carpio L.): genetic determination, isolation and partial characterization. Bioch. Genet. 14: 27-45.

Vallejo, M., Zarazaga, I., Monje, E., Lamuela, J.M. and Lasierra, J.M. (1975). Albuminas y Transferrinas en razas ovinas españolas. Annales de la Facultad de Veterinária (Zaragosa) 10: 296-307.

Weimer, T.A., Franco, M.H.L.P. and Moraes, J.C.F. (1984). Hemoglobin and Transferrin types in Corriedale and Romney Marsh sheep in Brazil. Rev. Bras. Genet. 7: 287-297.

Weimer, T.A., Salzano, F.M. and Hutz, M.H. (1981). Erythrocyte isozymes and Haemoglobin types in a Southern Brazilian population. J. Hum. Evol. 10: 319-328.

Zanotti Casati, M., Gandini, G.C. and Leone, P. (1990). Genetic variation and distances of five Italian native sheep breeds. Anim. Genet. 21: 87-92.