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African‐derived South American populations: A history of symmetrical and asymmetrical matings according to sex revealed by bi‐ and uni‐parental genetic markers
Author(s) -
Bortolini Maria Cátira,
Da Silva Wilson Araújo,
De Guerra Dinorah Castro,
Remonatto Gabriela,
Mirandola Rosana,
Hutz Mara H.,
Weimer Tania A.,
Silva Maria Cristina B.O.,
Zago Marco Antonio,
Salzano Francisco Mauro
Publication year - 1999
Publication title -
american journal of human biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.559
H-Index - 81
eISSN - 1520-6300
pISSN - 1042-0533
DOI - 10.1002/(sici)1520-6300(1999)11:4<551::aid-ajhb15>3.0.co;2-z
Subject(s) - hypervariable region , genetics , biology , hum , mitochondrial dna , intergenic region , gene , y chromosome , evolutionary biology , chromosome , ethnic group , genome , sociology , performance art , anthropology , art history , art
Estimates of African, European, and Amerindian contributions to the gene pool of 11 predominantly African‐derived South American populations were obtained using five autosomal and one Y chromosome hypervariable loci, as well as mitochondrial DNA (sequences of the first hypervariable segment of the control region, plus two restriction sites and the presence or absence of the CoII/tRNA Lys intergenic 9‐bp deletion). The three latter characteristics are reported here for the first time for 42 individuals living in three Brazilian populations. Thirty‐eight sequences were identified in these persons; 17 (45%) could be classified as being of African, 4 (11%) of Amerindian, and 2 (5%) of European origin. Evidence for asymmetrical matings in relation to sex and ethnic group was obtained for nine of the 11 populations. The most consistent finding was the introduction of European genes through males, but the results differ in the several communities, indicating the importance of local factors in such interactions. Am. J. Hum. Biol. 11:551–563, 1999. © 1999 Wiley‐Liss, Inc.