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

Published inInternational Journal of Immunogenetics, vol. 39, no. 2, p. 161-169
Publication date2012
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 genetics
  • GM
  • Human migrations
  • Genetic diversity
  • Madagascar
Citation (ISO format)
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
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ISSN of the journal1744-3121
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