Mixed origin of the current Tunisian population from the analysis of Alu and Alu/STR compound systems.
Identifieur interne : 000508 ( Main/Merge ); précédent : 000507; suivant : 000509Mixed origin of the current Tunisian population from the analysis of Alu and Alu/STR compound systems.
Auteurs : Wifak El Moncer [Tunisie] ; Esther Esteban ; Raoudha Bahri ; Magdalena Gayà-Vidal ; Robert Carreras-Torres ; Georgios Athanasiadis ; Pedro Moral ; Hassen ChaabaniSource :
- Journal of human genetics [ 1435-232X ] ; 2010.
Descripteurs français
- KwdFr :
- MESH :
- Wicri :
- geographic : Tunisie.
English descriptors
- KwdEn :
- MESH :
- chemical : Genetic Markers.
- geographic : Africa South of the Sahara, Tunisia.
- genetics : Population.
- Alu Elements, Gene Flow, Gene Frequency, Genetic Variation, Humans.
Abstract
During successive historical periods, Tunisia has been a crossroads of multiple civilizations and their corresponding key population movements. The aim of this study was to provide genetic information relating to the mixed origin of the Tunisian population, and to analyze its genetic relationship with other North African and Mediterranean populations. A set of 16 Alu and 3 Alu/STR compound systems has been analyzed in 268 autochthonous Tunisians from the north-center and the south of the country. Our two sampled populations showed no significant differentiation from one another in any of the three Alu/STR compound systems, whereas the analysis of the 16 Alu markers revealed a significant genetic differentiation between them. A sub-Saharan component shown by the three Alu/STR combinations is more noticeable in our north-center sample than in that of the south. The presence of two Alu/STR combinations specific to North African ancestral populations also suggests that the ancient Berber component is relatively more substantial in the north and center regions than in the south. Our Tunisian samples cluster together with other Berber samples from Morocco and Algeria, underpinning the genetic similarity among North Africans regardless of their current linguistic status (Berber or Arabic).
DOI: 10.1038/jhg.2010.120
PubMed: 20882034
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Bahri</name></author><author><name sortKey="Gaya Vidal, Magdalena" sort="Gaya Vidal, Magdalena" uniqKey="Gaya Vidal M" first="Magdalena" last="Gayà-Vidal">Magdalena Gayà-Vidal</name></author><author><name sortKey="Carreras Torres, Robert" sort="Carreras Torres, Robert" uniqKey="Carreras Torres R" first="Robert" last="Carreras-Torres">Robert Carreras-Torres</name></author><author><name sortKey="Athanasiadis, Georgios" sort="Athanasiadis, Georgios" uniqKey="Athanasiadis G" first="Georgios" last="Athanasiadis">Georgios Athanasiadis</name></author><author><name sortKey="Moral, Pedro" sort="Moral, Pedro" uniqKey="Moral P" first="Pedro" last="Moral">Pedro Moral</name></author><author><name sortKey="Chaabani, Hassen" sort="Chaabani, Hassen" uniqKey="Chaabani H" first="Hassen" last="Chaabani">Hassen Chaabani</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2010">2010</date><idno type="RBID">pubmed:20882034</idno><idno 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last="El Moncer">Wifak El Moncer</name><affiliation wicri:level="1"><nlm:affiliation>Laboratory of Human Genetics and Anthropology, Faculty of Pharmacy, University of Monastir, Monastir, Tunisia.</nlm:affiliation><country xml:lang="fr">Tunisie</country><wicri:regionArea>Laboratory of Human Genetics and Anthropology, Faculty of Pharmacy, University of Monastir, Monastir</wicri:regionArea><wicri:noRegion>Monastir</wicri:noRegion></affiliation></author><author><name sortKey="Esteban, Esther" sort="Esteban, Esther" uniqKey="Esteban E" first="Esther" last="Esteban">Esther Esteban</name></author><author><name sortKey="Bahri, Raoudha" sort="Bahri, Raoudha" uniqKey="Bahri R" first="Raoudha" last="Bahri">Raoudha Bahri</name></author><author><name sortKey="Gaya Vidal, Magdalena" sort="Gaya Vidal, Magdalena" uniqKey="Gaya Vidal M" first="Magdalena" last="Gayà-Vidal">Magdalena Gayà-Vidal</name></author><author><name sortKey="Carreras Torres, Robert" sort="Carreras Torres, Robert" uniqKey="Carreras 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scheme="MESH" xml:lang="fr"><term>Afrique subsaharienne</term><term>Flux des gènes</term><term>Fréquence d'allèle</term><term>Humains</term><term>Marqueurs génétiques</term><term>Séquences Alu</term><term>Tunisie</term><term>Variation génétique</term></keywords><keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>Tunisie</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">During successive historical periods, Tunisia has been a crossroads of multiple civilizations and their corresponding key population movements. The aim of this study was to provide genetic information relating to the mixed origin of the Tunisian population, and to analyze its genetic relationship with other North African and Mediterranean populations. A set of 16 Alu and 3 Alu/STR compound systems has been analyzed in 268 autochthonous Tunisians from the north-center and the south of the country. Our two sampled populations showed no significant differentiation from one another in any of the three Alu/STR compound systems, whereas the analysis of the 16 Alu markers revealed a significant genetic differentiation between them. A sub-Saharan component shown by the three Alu/STR combinations is more noticeable in our north-center sample than in that of the south. The presence of two Alu/STR combinations specific to North African ancestral populations also suggests that the ancient Berber component is relatively more substantial in the north and center regions than in the south. Our Tunisian samples cluster together with other Berber samples from Morocco and Algeria, underpinning the genetic similarity among North Africans regardless of their current linguistic status (Berber or Arabic).</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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