Data/hora: 08/06/2024 09:33:06

Provedor de dados: | 74
País: | Brazil
Título: | A systematic scoping review of the genetic ancestry of the Brazilian population
Autores: | Souza,Aracele Maria de; Resende,Sarah Stela; Sousa,Taís Nóbrega de; Brito,Cristiana Ferreira Alves de.
Data: | 2019-09-01
Ano: | 2019
Palavras-chave: | Scoping review; Genetic ancestry; Brazilian population; Genetic admixture.
Resumo: | Abstract The genetic background of the Brazilian population is mainly characterized by three parental populations: European, African, and Native American. The aim of this study was to overview the genetic ancestry estimates for different Brazilian geographic regions and analyze factors involved in these estimates. In this systematic scoping review were included 51 studies, comprehending 81 populations of 19 states from five regions of Brazil. To reduce the potential of bias from studies with different sampling methods, we calculated the mean genetic ancestry weighted by the number of individuals. The weighted mean proportions of European, African, and Native American ancestries were 68.1%, 19.6%, and 11.6%, respectively. At the regional level, the highest European contribution occurred in the South, while the highest African and Native American contributions occurred in the Northeastern and Northern regions, respectively. Among states in the Northeast region, Bahia and Ceará showed significant differences, suggesting distinct demographic histories. This review contributes for a broader understanding of the Brazilian ancestry and indicates that the ancestry estimates are influenced by the type of molecular marker and the sampling method.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000400495
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/1678-4685-gmb-2018-0076
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.42 n.3 2019
Fonte: | info:eu-repo/semantics/openAccess