Differential contribution of indigenous men and women to the formation of an urban population in the Amazon region as revealed by mtDNA and Y‐dNA

Dados Bibliográficos

ID8311657
AutoresSidney E Batista Dos Santos (Universidade Federal do Pará, autor correspondente), J D Rodrigues (Universidade Federal do Pará), Jean da Silva Rodrigues (0000-0001-9256-4564, Universidade Federal do Pará), Ândrea Kely Campos Ribeiro Dos Santos (0000-0001-7001-1483, Universidade Federal do Pará), A K C Ribeiro‐Dos‐Santos (Universidade Federal do Pará), Marco Antonio Zago (0000-0002-2840-0650, Clinics Hospital of Ribeirão Preto)
Ano1999
Volume109
Fascículo2
Páginas175-180
Data de publicação1999-06-01
Peer ReviewedSim
Open AccessSim
TipoARTICLE
PeriódicoAmerican Journal of Physical Anthropology (JOURNAL)
Identificadores do periódicoISSN: 0002-9483 • E-ISSN: 1096-8644
EditoraWiley (PUBLISHER • GB)
DOI10.1002/(sici)1096-8644(199906)109:2<175::aid-ajpa3>3.0.co;2-#
PMID10378456
OpenAlexW2040709678
IdiomaEN
Citações recebidas25
Referências citadas20

The human populations of the Brazilian Amazon were formed by interethnic crosses between Europeans, Africans, and Amerindians. The relative contribution of men and women of different ethnic groups was not homogeneous, since the social policies of the first three centuries of Brazilian colonization encouraged mating between European men and indigenous women and, later on, African women. In order to test this model based on historical data, we compared the relative contribution of the Y-DNA and mtDNA of Amerindian and non-Amerindian populations to the formation of the urban population of the town of Belém, in the Amazon region, on the basis of a C-->T mutation at locus DYS199 present in 90% of the Amerindian Y-DNA and of five markers that define 99% of the mitochondrial sequences of Amerindians. The contribution of indigenous men to the formation of this population was less than 5%, whereas the contribution of indigenous women was estimated at more than 50% of the mitochondrial sequences of the same population. Thus, the present results demonstrate that the contribution of indigenous women to the formation of the Belém population was 10 times higher than the contribution of indigenous men, a genetic consequence of social behavior and attitudes of the past; our results also help clarify the process of integration of indigenous communities into the urban societies in Brazil and possibly in other countries.

Amazon rainforest · Biology · Ethnic group · Ethnology · Gene · Geography · Indigenous · Mitochondrial DNA · Population · Sociology · Anthropology · Demography · Ecology · Forensic and Genetic Research · Genetics · Genomics and Phylogenetic Studies · Identification and Quantification in Food