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Brazilian quilombos: A repository of Amerindian alleles
American journal of human biology, 2014-03, Vol.26 (2), p.142-150
Gontijo, Carolina Carvalho
Guerra Amorim, Carlos Eduardo
Godinho, Neide Maria Oliveira
Toledo, Rafaela Cesare Parmezan
Nunes, Adriana
Silva, Wellington
Da Fonseca Moura, Maria Manuela
De Oliveira, José Carlos Coutinho
Pagotto, Rubiani C.
De Nazaré Klautau-Guimarães, Maria
De Oliveira, Silviene Fabiana
2014
Details
Autor(en) / Beteiligte
Gontijo, Carolina Carvalho
Guerra Amorim, Carlos Eduardo
Godinho, Neide Maria Oliveira
Toledo, Rafaela Cesare Parmezan
Nunes, Adriana
Silva, Wellington
Da Fonseca Moura, Maria Manuela
De Oliveira, José Carlos Coutinho
Pagotto, Rubiani C.
De Nazaré Klautau-Guimarães, Maria
De Oliveira, Silviene Fabiana
Titel
Brazilian quilombos: A repository of Amerindian alleles
Ist Teil von
American journal of human biology, 2014-03, Vol.26 (2), p.142-150
Ort / Verlag
United States: Blackwell Publishing Ltd
Erscheinungsjahr
2014
Link zum Volltext
Quelle
Wiley Online Library
Beschreibungen/Notizen
ABSTRACT Objectives As a consequence of colonization of the Americas and decimation of the native population, an important portion of autochthonous genetic variation has been lost. However, some alleles have been incorporated into the growing populations of admixed mestizos. In this study, we evaluated the potential of African‐derived communities in Brazil to be repositories of Amerindian alleles and, by extension, a source of information on American prehistory. Methods In this study, we describe the genetic variation of 15 ancestry informative markers (AIMs) of autosomal origin in two quilombos, Brazilian populations mainly of African descent, Santo Antônio do Guaporé (SAG; N = 31), and Santiago do Iguape (STI; N = 37). We compared the AIMs from these populations to those of other African–Brazilian populations, and to the Distrito Federal (N = 168), an urban population representative of Brazilian genetic diversity. Results By admixture analysis, we found that the SAG and STI communities have a much higher proportion (over 40%) of Amerindian contribution to their gene pools than other admixed Brazilian populations, in addition to marked African contributions. Conclusions These results identify two living African–Brazilian populations that carry unique and important genetic information regarding Amerindian history. These populations will be extremely valuable in future investigations into American pre‐history and Native American evolutionary dynamics. Am. J. Hum. Biol. 26:142–150, 2014. © 2014 Wiley Periodicals, Inc.
Sprache
Englisch
Identifikatoren
ISSN: 1042-0533
eISSN: 1520-6300
DOI: 10.1002/ajhb.22501
Titel-ID: cdi_proquest_miscellaneous_1501374719
Format
–
Schlagworte
African Continental Ancestry Group - genetics
,
Alleles
,
Brazil
,
Gene Pool
,
Genetic Variation
,
Humans
,
Indians, South American - genetics
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