The correlation between ancestry and color in two cities of Northeast Brazil with contrasting ethnic compositions
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2015 |
| Outros Autores: | , , , , , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | por |
| Título da fonte: | Repositório Institucional da FIOCRUZ (ARCA) |
| Texto Completo: | https://www.arca.fiocruz.br/handle/icict/15946 |
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Silva, Thiago Magalhães daRani, MR SandhyaCosta, Gustavo Nunes de OliveiraFigueiredo, Maria A.Melo, Paulo S.Nascimento, João F.Molyneaux, Neil D.Barreto, Maurício LimaReis, Mitermayer Galvão dosTeixeira, Maria da Glória Lima CruzBlanton, Ronald E.2016-09-26T13:40:21Z2016-09-26T13:40:21Z2015SILVA, T. M. et al. The correlation between ancestry and color in two cities of Northeast Brazil with contrasting ethnic compositions. European Journal of Human Genetics, v. 23, p. 984–989, 2015.1018-4813https://www.arca.fiocruz.br/handle/icict/1594610.1038/ejhg.2014.215CNPqFederal University of Bahia. Institute for Collective Health. Salvador, BA, Brasil.Case Western Reserve University. Center for Global Health. Cleveland, OH, USA.Federal University of Bahia. Institute for Collective Health. Salvador, BA, Brasil.Federal University of Bahia. Institute for Collective Health. Salvador, BA, Brasil.State University Santa Cruz. Ilhéus, BA, Brasil.State University Santa Cruz. Ilhéus, BA, Brasil.Case Western Reserve University. Department of Genetics. Cleveland, OH, USA.Federal University of Bahia. Institute for Collective Health. Salvador, BA, Brasil.Case Western Reserve University. Department of Genetics. Cleveland, OH, USA / Fundação Oswaldo Cruz. Centro de Pesquisas Gonçalo Moniz. Salvador, BA, Brasil.Federal University of Bahia. Institute for Collective Health. Salvador, BA, Brasil.Case Western Reserve University. Center for Global Health. Cleveland, OH, USA.The degree of admixture in Brazil between historically isolated populations is complex and geographically variable. Studies differ as to what the genetic and phenotypic consequences of this mixing have been. In Northeastern Brazil, we enrolled 522 residents of Salvador and 620 of Fortaleza whose distributions of self-declared color were comparable to those in the national census. Using the program Structure and principal components analysis there was a clear correlation between biogeographic ancestry and categories of skin color. This correlation with African ancestry was stronger in Salvador (r=0.585; Po0.001) than in Fortaleza (r=0.236; Po0.001). In Fortaleza, although self-declared blacks had a greater proportion of European ancestry, they had more African ancestry than the other categories. When the populations were analyzed without pseudoancestors, as in some studies, the relationship of ‘race’ to genetic ancestry tended to diffuse or disappear. The inclusion of different African populations also influenced ancestry estimates. The percentage of unlinked ancestry informative markers in linkage disequilibrium, a measure of population structure, was 3–5 times higher in both Brazilian populations than expected by chance. We propose that certain methods, ascertainment bias and population history of the specific populations surveyed can result in failure to demonstrate a correlation between skin color and genetic ancestry. Population structure in Brazil has important implications for genetic studies, but genetic ancestry is irrelevant for how individuals are treated in society, their health, their income or their inclusion. These track more closely with perceived skin color than genetic ancestry.porNature Publishing GroupPigmentação da peleCensosDesequilíbrio de ligaçãoCidadesNegrosBrasilHumanosSkin PigmentationCensusesLinkage DisequilibriumCitiesBlacksBrazilHumansThe correlation between ancestry and color in two cities of Northeast Brazil with contrasting ethnic compositionsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FIOCRUZ (ARCA)instname:Fundação Oswaldo Cruz (FIOCRUZ)instacron:FIOCRUZLICENSElicense.txtlicense.txttext/plain; charset=utf-82991https://www.arca.fiocruz.br/bitstream/icict/15946/1/license.txt5a560609d32a3863062d77ff32785d58MD51ORIGINALSilva TM The correlation between....pdfSilva TM The correlation between....pdfapplication/pdf687942https://www.arca.fiocruz.br/bitstream/icict/15946/2/Silva%20TM%20The%20correlation%20between....pdf8f0043ba4a58b61816551a4d3611a093MD52TEXTSilva TM The correlation 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| dc.title.en.fl_str_mv |
The correlation between ancestry and color in two cities of Northeast Brazil with contrasting ethnic compositions |
| title |
The correlation between ancestry and color in two cities of Northeast Brazil with contrasting ethnic compositions |
| spellingShingle |
The correlation between ancestry and color in two cities of Northeast Brazil with contrasting ethnic compositions Silva, Thiago Magalhães da Pigmentação da pele Censos Desequilíbrio de ligação Cidades Negros Brasil Humanos Skin Pigmentation Censuses Linkage Disequilibrium Cities Blacks Brazil Humans |
| title_short |
The correlation between ancestry and color in two cities of Northeast Brazil with contrasting ethnic compositions |
| title_full |
The correlation between ancestry and color in two cities of Northeast Brazil with contrasting ethnic compositions |
| title_fullStr |
The correlation between ancestry and color in two cities of Northeast Brazil with contrasting ethnic compositions |
| title_full_unstemmed |
The correlation between ancestry and color in two cities of Northeast Brazil with contrasting ethnic compositions |
| title_sort |
The correlation between ancestry and color in two cities of Northeast Brazil with contrasting ethnic compositions |
| author |
Silva, Thiago Magalhães da |
| author_facet |
Silva, Thiago Magalhães da Rani, MR Sandhya Costa, Gustavo Nunes de Oliveira Figueiredo, Maria A. Melo, Paulo S. Nascimento, João F. Molyneaux, Neil D. Barreto, Maurício Lima Reis, Mitermayer Galvão dos Teixeira, Maria da Glória Lima Cruz Blanton, Ronald E. |
| author_role |
author |
| author2 |
Rani, MR Sandhya Costa, Gustavo Nunes de Oliveira Figueiredo, Maria A. Melo, Paulo S. Nascimento, João F. Molyneaux, Neil D. Barreto, Maurício Lima Reis, Mitermayer Galvão dos Teixeira, Maria da Glória Lima Cruz Blanton, Ronald E. |
| author2_role |
author author author author author author author author author author |
| dc.contributor.author.fl_str_mv |
Silva, Thiago Magalhães da Rani, MR Sandhya Costa, Gustavo Nunes de Oliveira Figueiredo, Maria A. Melo, Paulo S. Nascimento, João F. Molyneaux, Neil D. Barreto, Maurício Lima Reis, Mitermayer Galvão dos Teixeira, Maria da Glória Lima Cruz Blanton, Ronald E. |
| dc.subject.other.pt_BR.fl_str_mv |
Pigmentação da pele Censos Desequilíbrio de ligação Cidades Negros Brasil Humanos |
| topic |
Pigmentação da pele Censos Desequilíbrio de ligação Cidades Negros Brasil Humanos Skin Pigmentation Censuses Linkage Disequilibrium Cities Blacks Brazil Humans |
| dc.subject.en.en.fl_str_mv |
Skin Pigmentation Censuses Linkage Disequilibrium Cities Blacks Brazil Humans |
| description |
CNPq |
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2015 |
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2015 |
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2016-09-26T13:40:21Z |
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2016-09-26T13:40:21Z |
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info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
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SILVA, T. M. et al. The correlation between ancestry and color in two cities of Northeast Brazil with contrasting ethnic compositions. European Journal of Human Genetics, v. 23, p. 984–989, 2015. |
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https://www.arca.fiocruz.br/handle/icict/15946 |
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1018-4813 |
| dc.identifier.doi.none.fl_str_mv |
10.1038/ejhg.2014.215 |
| identifier_str_mv |
SILVA, T. M. et al. The correlation between ancestry and color in two cities of Northeast Brazil with contrasting ethnic compositions. European Journal of Human Genetics, v. 23, p. 984–989, 2015. 1018-4813 10.1038/ejhg.2014.215 |
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