The African contribution to the present-day population of the Azores islands (Portugal): Analysis of the Y chromosome haplogroup E

• Tipo: Artigo em Revista Científica Internacional
• Data: 2007

Autores

Domingos Neto (Autor) Outra; Rafael Montiel (Autor) Outra; Conceicao Bettencourt (Autor) Outra; Cristina Santos (Autor) Outra; Maria J Prata (Autor) FCUP; Manuela Lima (Autor) Outra

Revista

Título: American Journal of Human Biology

Vol. 19

Páginas: 854-860

ISSN: 1042-0533

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 7 Citações

Scopus - 7 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Ciências biológicas

Outras Informações

ID Authenticus: P-004-6C3

DOI: 10.1002/ajhb.20651

Abstract (EN): Among the settlers that, from 1432 onwards, arrived to the Azores Islands were individuals of North and sub-Saharan African origin. A previous study of markers of the Y chromosome revealed that haplogroup E is the second more frequent in the Azores (13%). Since this haplogroup is heterogeneous and may contain subtypes of African or non-African origin, we analyzed an extended sample of 319 Azoreans, originating from the three groups of islands (Eastern, Central, and Western), to evaluate the African contribution to the present-day population of the Azores. Samples belonging to the E clade were distributed into six haplogroups, from which the most frequent was E3b1a, representing 47.2% of the E chromosomes (6.3%0 of the total sample). The sub-Saharan haplogroup E3a was found in 7.1% of E chromosomes (0.9% of the total), corresponding to the highest frequency reported so far in a Portuguese population. No significant differences were detected in the haplogroup distribution among groups of islands, as well as between Azores and most of other European populations compared. The present-day representation of sub-Saharan lineages in Azores, although reduced, is higher than in other Portuguese populations, where the demographic representation of sub-Saharan slaves is reported as similar.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7