Demographic history of Canary Islands male gene-pool: replacement of native lineages by European

• Tipo: Artigo em Revista Científica Internacional
• Data: 2009

Autores

Rosa Fregel (Autor) Outra; Veronica Gomes (Autor) Outra; Leonor Gusmao (Autor) FCUP; Ana M Gonzalez (Autor) Outra; Vicente M Cabrera (Autor) Outra; Antonio Amorim (Autor) FCUP; Jose M Larruga (Autor) Outra

Revista

Título: BMC Evolutionary Biology

Vol. 9

Página Final: 181

ISSN: 1471-2148

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 43 Citações

Scopus - 44 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Ciências da terra e ciências do ambiente

Outras Informações

ID Authenticus: P-003-GTE

DOI: 10.1186/1471-2148-9-181

Abstract (EN): Background: The origin and prevalence of the prehispanic settlers of the Canary Islands has attracted great multidisciplinary interest. However, direct ancient DNA genetic studies on indigenous and historical 17th-18th century remains, using mitochondrial DNA as a female marker, have only recently been possible. In the present work, the analysis of Y-chromosome polymorphisms in the same samples, has shed light on the way the European colonization affected male and female Canary Island indigenous genetic pools, from the conquest to present-day times. Results: Autochthonous (E-M81) and prominent (E-M78 and J-M267) Berber Y-chromosome lineages were detected in the indigenous remains, confirming a North West African origin for their ancestors which confirms previous mitochondrial DNA results. However, in contrast with their female lineages, which have survived in the present-day population since the conquest with only a moderate decline, the male indigenous lineages have dropped constantly being substituted by European lineages. Male and female sub-Saharan African genetic inputs were also detected in the Canary population, but their frequencies were higher during the 17th-18th centuries than today. Conclusion: The European colonization of the Canary Islands introduced a strong sex-biased change in the indigenous population in such a way that indigenous female lineages survived in the extant population in a significantly higher proportion than their male counterparts.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 14