Genetic signatures of parental contribution in black and white populations in Brazil
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Genetics and Molecular Biology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000100001 |
Resumo: | Two hundred and three individuals classified as white were tested for 11 single nucleotide polymorphisms plus two insertion/deletions in their Y-chromosomes. A subset of these individuals (n = 172) was also screened for sequences in the first hypervariable segment of their mitochondrial DNA (mtDNA). In addition, complementary studies were done for 11 of the 13 markers indicated above in 54 of 107 black subjects previously investigated in this southern Brazilian population. The prevalence of Y-chromosome haplogroups among whites was similar to that found in the Azores (Portugal) or Spain, but not to that of other European countries. About half of the European or African mtDNA haplogroups of these individuals were related to their places of origin, but not their Amerindian counterparts. Persons classified in these two categories of skin color and related morphological traits showed distinct genomic ancestries through the country. These findings emphasize the need to consider in Brazil, despite some general trends, a notable heterogeneity in the pattern of admixture dynamics within and between populations/groups. |
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Genetics and Molecular Biology |
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Genetic signatures of parental contribution in black and white populations in Brazil admixture dynamicsmtDNAY-chromosome markers Two hundred and three individuals classified as white were tested for 11 single nucleotide polymorphisms plus two insertion/deletions in their Y-chromosomes. A subset of these individuals (n = 172) was also screened for sequences in the first hypervariable segment of their mitochondrial DNA (mtDNA). In addition, complementary studies were done for 11 of the 13 markers indicated above in 54 of 107 black subjects previously investigated in this southern Brazilian population. The prevalence of Y-chromosome haplogroups among whites was similar to that found in the Azores (Portugal) or Spain, but not to that of other European countries. About half of the European or African mtDNA haplogroups of these individuals were related to their places of origin, but not their Amerindian counterparts. Persons classified in these two categories of skin color and related morphological traits showed distinct genomic ancestries through the country. These findings emphasize the need to consider in Brazil, despite some general trends, a notable heterogeneity in the pattern of admixture dynamics within and between populations/groups. Sociedade Brasileira de Genética2009-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000100001Genetics and Molecular Biology v.32 n.1 2009reponame:Genetics and Molecular Biologyinstname:Sociedade Brasileira de Genética (SBG)instacron:SBG10.1590/S1415-47572009005000001info:eu-repo/semantics/openAccessGuerreiro-Junior,VanderleiBisso-Machado,RafaelMarrero,AndreaHünemeier,TábitaSalzano,Francisco M.Bortolini,Maria Cátiraeng2009-01-10T00:00:00Zoai:scielo:S1415-47572009000100001Revistahttp://www.gmb.org.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||editor@gmb.org.br1678-46851415-4757opendoar:2009-01-10T00:00Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG)false |
dc.title.none.fl_str_mv |
Genetic signatures of parental contribution in black and white populations in Brazil |
title |
Genetic signatures of parental contribution in black and white populations in Brazil |
spellingShingle |
Genetic signatures of parental contribution in black and white populations in Brazil Guerreiro-Junior,Vanderlei admixture dynamics mtDNA Y-chromosome markers |
title_short |
Genetic signatures of parental contribution in black and white populations in Brazil |
title_full |
Genetic signatures of parental contribution in black and white populations in Brazil |
title_fullStr |
Genetic signatures of parental contribution in black and white populations in Brazil |
title_full_unstemmed |
Genetic signatures of parental contribution in black and white populations in Brazil |
title_sort |
Genetic signatures of parental contribution in black and white populations in Brazil |
author |
Guerreiro-Junior,Vanderlei |
author_facet |
Guerreiro-Junior,Vanderlei Bisso-Machado,Rafael Marrero,Andrea Hünemeier,Tábita Salzano,Francisco M. Bortolini,Maria Cátira |
author_role |
author |
author2 |
Bisso-Machado,Rafael Marrero,Andrea Hünemeier,Tábita Salzano,Francisco M. Bortolini,Maria Cátira |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Guerreiro-Junior,Vanderlei Bisso-Machado,Rafael Marrero,Andrea Hünemeier,Tábita Salzano,Francisco M. Bortolini,Maria Cátira |
dc.subject.por.fl_str_mv |
admixture dynamics mtDNA Y-chromosome markers |
topic |
admixture dynamics mtDNA Y-chromosome markers |
description |
Two hundred and three individuals classified as white were tested for 11 single nucleotide polymorphisms plus two insertion/deletions in their Y-chromosomes. A subset of these individuals (n = 172) was also screened for sequences in the first hypervariable segment of their mitochondrial DNA (mtDNA). In addition, complementary studies were done for 11 of the 13 markers indicated above in 54 of 107 black subjects previously investigated in this southern Brazilian population. The prevalence of Y-chromosome haplogroups among whites was similar to that found in the Azores (Portugal) or Spain, but not to that of other European countries. About half of the European or African mtDNA haplogroups of these individuals were related to their places of origin, but not their Amerindian counterparts. Persons classified in these two categories of skin color and related morphological traits showed distinct genomic ancestries through the country. These findings emphasize the need to consider in Brazil, despite some general trends, a notable heterogeneity in the pattern of admixture dynamics within and between populations/groups. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000100001 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000100001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1415-47572009005000001 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Genética |
publisher.none.fl_str_mv |
Sociedade Brasileira de Genética |
dc.source.none.fl_str_mv |
Genetics and Molecular Biology v.32 n.1 2009 reponame:Genetics and Molecular Biology instname:Sociedade Brasileira de Genética (SBG) instacron:SBG |
instname_str |
Sociedade Brasileira de Genética (SBG) |
instacron_str |
SBG |
institution |
SBG |
reponame_str |
Genetics and Molecular Biology |
collection |
Genetics and Molecular Biology |
repository.name.fl_str_mv |
Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG) |
repository.mail.fl_str_mv |
||editor@gmb.org.br |
_version_ |
1752122381991673856 |