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The Arabo-Islamic migrations in Madagascar: first genetic study of the GM system in three Malagasy populations

Capredon, M.
Guitard, E.
Razafindrazaka, H.
Chiaroni, J.
Champion, B.
Dugoujon, J.-M.
Published in International journal of immunogenetics. 2012, vol. 39, no. 2, p. 161-169
Abstract The Antemoro are an ethnic group from the southeast coast of Madagascar who claims an Arab origin. Cultural signatures of an Arabo-Islamic influence have been found in this region. Nevertheless, their origins are very contentious. Through this study, we want to determine whether this ethnic group had a particular GM profile that differentiated it from other Malagasy populations, and whether there were detectable genetic traces of the Arabo-Islamic migration. The Gm polymorphisms of IgG immunoglobulins was analysed in a population of Antemoro (N = 85), two other Malagasy populations from northern Fihereňa (N = 82) and southern Fihereňa (N = 50) and in a Comorian population (N = 171). This last group was used to enlarge the database for genetic comparisons. Results revealed significant contributions from Africa (60%, 0.092 ≤F(ST) ≤ 0.280) and Southeast Asia (40%, 0.043 ≤ F(ST) ≤ 0.590) to the Antemoro genetic pool. No direct genetic relationships with the Middle East. These results bring new insights into the population history of Madagascar.
Keywords Population geneticsGMHuman migrationsGenetic diversityMadagascar
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Research groups Groupe Sanchez-Mazas
Unité d'anthropologie
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CAPREDON, M. et al. The Arabo-Islamic migrations in Madagascar: first genetic study of the GM system in three Malagasy populations. In: International Journal of Immunogenetics, 2012, vol. 39, n° 2, p. 161-169. doi: 10.1111/j.1744-313X.2011.01069.x https://archive-ouverte.unige.ch/unige:103011

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Deposited on : 2018-03-19

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