Afro-derived Brazilian populations: male genetic constitution estimated by Y-chromosomes STRs and AluYAP element polymorphisms.
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).
Ribeiro
Guilherme Galvarros Bueno Lobo
GG
Departamento de Genética e Morfologia, Universidade de Brasília, Brasília, Distrito Federal, Brazil.
De Lima
Reginaldo Ramos
RR
Wiezel
Cláudia Emília Vieira
CE
Ferreira
Luzitano Brandão
LB
Sousa
Sandra Mara Bispo
SM
Rocha
Dulce Maria Sucena
DM
Canas
Maria do Carmo Tomitão
Mdo C
Nardelli-Costa
Juliana
J
Klautau-Guimarães
Maria De Nazaré
Mde N
Simões
Aguinaldo Luiz
AL
Oliveira
Silviene Fabiana
SF
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