Analysis of Y-chromosome Variability and its Comparison with mtDNA Variability Reveals Different Demographic Histories Between Islands in the Azores Archipelago (Portugal)
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/8064 https://doi.org/10.1046/j.1469-1809.2004.00146.x |
Resumo: | We determined the Y-chromosomal composition of the population of the Azores Islands (Portugal), by analyzing 20 binary polymorphisms located in the non-recombining portion of the Y-chromosome (NRY), in 185 unrelated individuals from the three groups of islands forming the Archipelago (Eastern, Central and Western). Similar to that described for other Portuguese samples, the most frequent haplogroups were R1(xR1b3f) (55.1%), E(xE3a) (13%) and J (8.6%). Principal components analysis revealed a Western European profile for the Azorean population. No significant differences between Azores and mainland Portugal were observed. However, the haplogroup distribution across the three groups of islands was not similar (P<0.003). The Western group presented differences in the frequencies of haplogroups R1, E(xE3a) and I1b2 (27.3%, 22.7% and 13.6%, respectively) when compared to the other two groups. An assessment of the NRY variability, and its comparison with mitochondrial DNA (mtDNA) variability, was further evidence of the differential composition of males during the settlement of the three groups of islands, contrary to what has been previously deduced for the female settlers using mtDNA data. |
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Analysis of Y-chromosome Variability and its Comparison with mtDNA Variability Reveals Different Demographic Histories Between Islands in the Azores Archipelago (Portugal)We determined the Y-chromosomal composition of the population of the Azores Islands (Portugal), by analyzing 20 binary polymorphisms located in the non-recombining portion of the Y-chromosome (NRY), in 185 unrelated individuals from the three groups of islands forming the Archipelago (Eastern, Central and Western). Similar to that described for other Portuguese samples, the most frequent haplogroups were R1(xR1b3f) (55.1%), E(xE3a) (13%) and J (8.6%). Principal components analysis revealed a Western European profile for the Azorean population. No significant differences between Azores and mainland Portugal were observed. However, the haplogroup distribution across the three groups of islands was not similar (P<0.003). The Western group presented differences in the frequencies of haplogroups R1, E(xE3a) and I1b2 (27.3%, 22.7% and 13.6%, respectively) when compared to the other two groups. An assessment of the NRY variability, and its comparison with mitochondrial DNA (mtDNA) variability, was further evidence of the differential composition of males during the settlement of the three groups of islands, contrary to what has been previously deduced for the female settlers using mtDNA data.2005info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/8064http://hdl.handle.net/10316/8064https://doi.org/10.1046/j.1469-1809.2004.00146.xengAnnals of Human Genetics. 69:2 (2005) 135-144Montiel, R.Bettencourt, C.Silva, C.Santos, C.Prata, M. J.Lima, M.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2020-05-29T10:04:51Zoai:estudogeral.uc.pt:10316/8064Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:55:49.370392Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Analysis of Y-chromosome Variability and its Comparison with mtDNA Variability Reveals Different Demographic Histories Between Islands in the Azores Archipelago (Portugal) |
title |
Analysis of Y-chromosome Variability and its Comparison with mtDNA Variability Reveals Different Demographic Histories Between Islands in the Azores Archipelago (Portugal) |
spellingShingle |
Analysis of Y-chromosome Variability and its Comparison with mtDNA Variability Reveals Different Demographic Histories Between Islands in the Azores Archipelago (Portugal) Montiel, R. |
title_short |
Analysis of Y-chromosome Variability and its Comparison with mtDNA Variability Reveals Different Demographic Histories Between Islands in the Azores Archipelago (Portugal) |
title_full |
Analysis of Y-chromosome Variability and its Comparison with mtDNA Variability Reveals Different Demographic Histories Between Islands in the Azores Archipelago (Portugal) |
title_fullStr |
Analysis of Y-chromosome Variability and its Comparison with mtDNA Variability Reveals Different Demographic Histories Between Islands in the Azores Archipelago (Portugal) |
title_full_unstemmed |
Analysis of Y-chromosome Variability and its Comparison with mtDNA Variability Reveals Different Demographic Histories Between Islands in the Azores Archipelago (Portugal) |
title_sort |
Analysis of Y-chromosome Variability and its Comparison with mtDNA Variability Reveals Different Demographic Histories Between Islands in the Azores Archipelago (Portugal) |
author |
Montiel, R. |
author_facet |
Montiel, R. Bettencourt, C. Silva, C. Santos, C. Prata, M. J. Lima, M. |
author_role |
author |
author2 |
Bettencourt, C. Silva, C. Santos, C. Prata, M. J. Lima, M. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Montiel, R. Bettencourt, C. Silva, C. Santos, C. Prata, M. J. Lima, M. |
description |
We determined the Y-chromosomal composition of the population of the Azores Islands (Portugal), by analyzing 20 binary polymorphisms located in the non-recombining portion of the Y-chromosome (NRY), in 185 unrelated individuals from the three groups of islands forming the Archipelago (Eastern, Central and Western). Similar to that described for other Portuguese samples, the most frequent haplogroups were R1(xR1b3f) (55.1%), E(xE3a) (13%) and J (8.6%). Principal components analysis revealed a Western European profile for the Azorean population. No significant differences between Azores and mainland Portugal were observed. However, the haplogroup distribution across the three groups of islands was not similar (P<0.003). The Western group presented differences in the frequencies of haplogroups R1, E(xE3a) and I1b2 (27.3%, 22.7% and 13.6%, respectively) when compared to the other two groups. An assessment of the NRY variability, and its comparison with mitochondrial DNA (mtDNA) variability, was further evidence of the differential composition of males during the settlement of the three groups of islands, contrary to what has been previously deduced for the female settlers using mtDNA data. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10316/8064 http://hdl.handle.net/10316/8064 https://doi.org/10.1046/j.1469-1809.2004.00146.x |
url |
http://hdl.handle.net/10316/8064 https://doi.org/10.1046/j.1469-1809.2004.00146.x |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Annals of Human Genetics. 69:2 (2005) 135-144 |
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info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799133844311375872 |