© 2004 The American Genetic Association
Brief Communication |
Predominant African-Derived mtDNA in Caribbean and Brazilian Creole Cattle is also Found in Spanish Cattle (Bos taurus)
From the Departamento de Tecnologia, Faculdade de Ciencias Agrarias e Veterinarias, Universidade Estadual Paulista, via de acesso Professor P. D. Castellane km 5, 14884-900, Jaboticabal, SP, Brazil (Miretti and Ferro); Departamento de Produccion Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain (Dunner); Institut National de la Recherche Agronomique, Unité de Recherches Zootechniques, Petit Bourg, Guadeloupe (FWI) (Naves); and Departamento de Genética, Faculdade de Medicina de Ribeirao Preto, Universidade de Sao Paulo, Av. Bandeirantes 3900, 14049-900, Ribeirão Preto, SP, Brazil (Miretti and Contel). M. M. Miretti is currently at the Wellcome Trust Sanger Institute, Hinxton, Cambridge, CB10 1SA, United Kingdom.
Address correspondence to M. M. Miretti at the address above, or e-mail: mm3{at}sanger.ac.uk.
African-derived mitochondrial DNA (mtDNA) have been described in South American and Caribbean native cattle populations, which could have been introduced into America from Iberia or by direct importation from Africa. However, the similarity among described haplotypes is not known. We examined mtDNA variation in Guadeloupe Creole and Spanish cattle in an attempt to identify African-derived mtDNA haplotypes and compare them with those previously described. Eleven haplotypes clustered into the European taurine haplogroup (T3), two haplotypes into the African taurine (T1) haplogroup, and three haplotypes into the African-derived American haplogroup (AA). The AA1 and Eucons haplotypes were the most frequently observed. The presence of the AA haplogroup in Spanish cattle confirms historical records and genetic evidence of Iberian cattle as the main source of American native cattle origin. The possible origin of African-derived mitochondrial haplotypes in Iberian and Creole cattle is discussed, and the accumulated evidence does not support a founder effect from African ancestral cattle by direct importations. The presence of taurine AA and T3 haplotypes in Brazilian Nellore may indicate introgression by local European-derived cattle. Data presented in this work will contribute to the understanding of the origin of Guadeloupe Creole cattle.
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