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DNA tests probe the genomic ancestry of Brazilians BJMBR
Pena,S.D.J.; Bastos-Rodrigues,L.; Pimenta,J.R.; Bydlowski,S.P..
We review studies from our laboratories using different molecular tools to characterize the ancestry of Brazilians in reference to their Amerindian, European and African roots. Initially we used uniparental DNA markers to investigate the contribution of distinct Y chromosome and mitochondrial DNA lineages to present-day populations. High levels of genetic admixture and strong directional mating between European males and Amerindian and African females were unraveled. We next analyzed different types of biparental autosomal polymorphisms. Especially useful was a set of 40 insertion-deletion polymorphisms (indels) that when studied worldwide proved exquisitely sensitive in discriminating between Amerindians, Europeans and Sub-Saharan Africans. When applied...
Tipo: Info:eu-repo/semantics/article Palavras-chave: DNA tests; Insertion-deletion polymorphisms; Ancestry; Human diversity; Brazilians.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009001000001
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