Please use this identifier to cite or link to this item: http://repositorio.ufpa.br/jspui/handle/2011/3639
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Type: Artigo de Periódico
Issue Date: 2003
Authors: VALLINOTO, Izaura Maria Vieira Cayres
VALLINOTO, Antonio Carlos Rosário
VALENTE, Cristina Maria Duarte
GUERREIRO, João Farias
Title: Allele frequency distributions of six hypervariable loci (D1S80, APOB, D4S43, vW1, F13A and DYS19) in two African-Brazilian communities from the Amazon region
Citation: VALLINOTO, Izaura Maria Vieira Cayres, et al. Allele frequency distributions of six hypervariable loci (D1S80, APOB, D4S43, vW1, F13A and DYS19) in two African-Brazilian communities from the Amazon region. Genetics and Molecular Biology, São Paulo, v. 26, n. 3, p. 235-240, 2003. Disponível em: <http://www.scielo.br/pdf/gmb/v26n3/a03v26n3.pdf>. Acesso em: 04 abr. 2013. <http://dx.doi.org/10.1590/S1415-47572003000300003>.
Abstract: The allele frequency distributions of three VNTR (D1S80, APOB and D4S43) and three STR (vW1, F13A1 and DYS19) loci were investigated in two Afro-Brazilian populations from the Amazon: Curiau and Pacoval. Exact tests for population differentiation revealed significant differences in allele frequency between populations only for the D1S80 and APOB loci. A statistically significant deviation from the Hardy-Weinberg equilibrium was observed only in the D1S80 locus of the Pacoval sample. A neighbor-joining tree was constructed based on DA genetic distances of allele frequencies in four Afro-Brazilian populations from the Amazon (Pacoval, Curiau, Trombetas, and Cametá), along with those from Congo, Cameroon, Brazilian Amerindians, and Europeans. This analysis revealed the usefulness of these Amp-FLPs for population studies - African and African-derived populations were closely grouped, and clearly separated from Amerindians and Europeans. Estimates of admixture components based on the gene identity method revealed the prevalence of the African component in both populations studied, amounting to 51% in Pacoval, and to 43% in Curiau. The Amerindian component was also important in both populations (37% in Pacoval, and 24% in Curiau). The European component reached 33% in Curiau.
Keywords: Polimorfismo genético
DNA
Negro (Raça)
Quilombolas
Amapá - Estado
Pará - Estado
Amazônia brasileira
ISSN: 1678-4685
1415-4757
Appears in Collections:Artigos Científicos - ICB

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