Genetic variability of 16 Y-chromosome STRs in a sample from Equatorial Guinea (Central Africa)

Arroyo-Pardo, Eduardo; Gusmão, Leonor; López-Parra, Ana Marı́a; Baeza, Carlos M.; Mesa, Marı́a Soledad; Amorim, António

doi:10.1016/j.forsciint.2004.06.006

Cited by 36 publications

(28 citation statements)

References 7 publications

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“…the pairwise Rst genetic distances analysis obtained among male population sample from cabo Verde and others from Iberia and Africa sub-saharan, showed a similar significant differentiation from Iberian populations (0.13352<Rst<0.17027, p=0.00000) [9,10,11] and from Africa sub-saharan populations (0.13401<Rst<0.15268, p=0.00000) [12,13,14].…”

Section: Resultsmentioning

confidence: 53%

Paternal and maternal lineages in Cabo Verde archipelago population

Côrte-Real¹,

Gusmão²,

Anjos³

et al. 2010

Acta Medicinae Legalis Et Socialis

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A navegação consulta e descarregamento dos títulos inseridos nas Bibliotecas Digitais UC Digitalis, UC Pombalina e UC Impactum, pressupõem a aceitação plena e sem reservas dos Termos e Condições de Uso destas Bibliotecas Digitais, disponíveis em https://digitalis.uc.pt/pt-pt/termos.Conforme exposto nos referidos Termos e Condições de Uso, o descarregamento de títulos de acesso restrito requer uma licença válida de autorização devendo o utilizador aceder ao(s) documento(s) a partir de um endereço de IP da instituição detentora da supramencionada licença.Ao utilizador é apenas permitido o descarregamento para uso pessoal, pelo que o emprego do(s) título(s) descarregado(s) para outro fim, designadamente comercial, carece de autorização do respetivo autor ou editor da obra.Na medida em que todas as obras da UC Digitalis se encontram protegidas pelo Código do Direito de Autor e Direitos Conexos e demais legislação aplicável, toda a cópia, parcial ou total, deste documento, nos casos em que é legalmente admitida, deverá conter ou fazer-se acompanhar por este aviso. Paternal and maternal lineages in

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Section: Resultsmentioning

confidence: 53%

Paternal and maternal lineages in Cabo Verde archipelago population

Côrte-Real¹,

Gusmão²,

Anjos³

et al. 2010

Acta Medicinae Legalis Et Socialis

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“…Phylogenetic comparisons regarding the recent found lineages by Cruciani et al 7 were also performed based on information from seven Y-STRs (four typed in the present work and three additional from a previous study of the same Equatorial Guinea samples by ArroyoPardo et al 16 ), with R1b1a-V88 samples from North and Central Africa, Europe and from the present work (Figure 2b). The network Y haplogroup R in Central-West Africa M González et al results show that the Equatorial Guinea samples appear to be related to the remaining African samples.…”

Section: Characterisation Of the Male Lineages Of Equatorial Guineamentioning

confidence: 77%

“…15 Several additional Y-STRs had already been studied in a subset of these samples using the PowerPlex Y System (Promega Corporation, Madison, WI, USA), following the protocol described by Arroyo-Pardo and collaborators. 16 …”

Section: Y-str Typingmentioning

confidence: 99%

The genetic landscape of Equatorial Guinea and the origin and migration routes of the Y chromosome haplogroup R-V88

et al. 2012

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Human Y chromosomes belonging to the haplogroup R1b1-P25, although very common in Europe, are usually rare in Africa. However, recently published studies have reported high frequencies of this haplogroup in the central-western region of the African continent and proposed that this represents a 'back-to-Africa' migration during prehistoric times. To obtain a deeper insight into the history of these lineages, we characterised the paternal genetic background of a population in Equatorial Guinea, a Central-West African country located near the region in which the highest frequencies of the R1b1 haplogroup in Africa have been found to date. In our sample, the large majority (78.6%) of the sequences belong to subclades in haplogroup E, which are the most frequent in Bantu groups. However, the frequency of the R1b1 haplogroup in our sample (17.0%) was higher than that previously observed for the majority of the African continent. Of these R1b1 samples, nine are defined by the V88 marker, which was recently discovered in Africa. As high microsatellite variance was found inside this haplogroup in Central-West Africa and a decrease in this variance was observed towards Northeast Africa, our findings do not support the previously hypothesised movement of Chadic-speaking people from the North across the Sahara as the explanation for these R1b1 lineages in Central-West Africa. The present findings are also compatible with an origin of the V88-derived allele in the Central-West Africa, and its presence in North Africa may be better explained as the result of a migration from the south during the mid-Holocene.

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“…For population comparisons, the DYS385 locus was excluded from the analysis. The AMOVA analysis was carried out using the published data for Mozambique (n = 112) [7], Equatorial Guinea (n = 101) [8], El Salvador (n = 121) [9], Cabinda-Angola (n = 75) (unpublished data kindly provided by Sandra Beleza and Leonor Gusmao, IPATIMUP, Portugal), Afro-Americans (n = 698) obtained previously from YSTR.org/USA, Surinam [3], Central African Pygmies (n = 32) [3], Buenos Aires (n = 100) [3] as well as a sample of 225 individuals from Medellín (Colombia) obtained from YSTR.org reported by Builes J.J. (Genes Ltda., Medellín, Colombia). The discrimination power was determined based on the number of individual haplotypes/total number of individuals analyzed.…”

Section: Discussionmentioning

confidence: 99%