title: Afro-derived Brazilian populations: male genetic constitution estimated by Y-chromosomes STRs and AluYAP element polymorphisms.
abstract: The genetic constitution of Afro-derived Brazilian populations is barely studied. To improve that knowledge, we investigated the AluYAP element and five Y-chromosome STRs (DYS19, DYS390, DYS391, DYS392, and DYS393) to estimate ethnic male contribution in the constitution of four Brazilian quilombos remnants: Mocambo, Rio das Rãs, Kalunga, and Riacho de Sacutiaba. Results indicated significant differences among communities, corroborating historical information about the Brazilian settlement. We concluded that besides African contribution, there was a great European participation in the constitution of these four populations and that observed haplotype variability could be explained by gene flow to quilombos remnants and mutational events in microsatellites (STRs).
authors.affiliation: Departamento de Genética e Morfologia, Universidade de Brasília, Brasília, Distrito Federal, Brazil.
authors.forename: Guilherme Galvarros Bueno Lobo
authors.initials: GG
authors.lastname: Ribeiro
authors.forename: Reginaldo Ramos
authors.initials: RR
authors.lastname: De Lima
authors.forename: Cláudia Emília Vieira
authors.initials: CE
authors.lastname: Wiezel
authors.forename: Luzitano Brandão
authors.initials: LB
authors.lastname: Ferreira
authors.forename: Sandra Mara Bispo
authors.initials: SM
authors.lastname: Sousa
authors.forename: Dulce Maria Sucena
authors.initials: DM
authors.lastname: Rocha
authors.forename: Maria do Carmo Tomitão
authors.initials: Mdo C
authors.lastname: Canas
authors.forename: Juliana
authors.initials: J
authors.lastname: Nardelli-Costa
authors.forename: Maria De Nazaré
authors.initials: Mde N
authors.lastname: Klautau-Guimarães
authors.forename: Aguinaldo Luiz
authors.initials: AL
authors.lastname: Simões
authors.forename: Silviene Fabiana
authors.initials: SF
authors.lastname: Oliveira
mesh_terms: D044383:Black People / Q000235:genetics*; D001938:Brazil / Q000453:epidemiology; D041322:Chromosomes, Human, Y / Q000235:genetics*; D005006:Ethnicity / Q000235:genetics*; D018703:Founder Effect; D005787:Gene Frequency / Q000235:genetics; D006239:Haplotypes / Q000235:genetics*; D006801:Humans; D008297:Male; D018895:Microsatellite Repeats / Q000235:genetics*; D020641:Polymorphism, Single Nucleotide / Q000235:genetics; D044465:White People / Q000235:genetics