Armadillos exhibit less genetic polymorphism in North America than in South America: nuclear and mitochondrial data confirm a founder effect in Dasypus novemcinctus (Xenarthra). - HAL-SDE - Sciences de l'environnement Accéder directement au contenu
Article Dans Une Revue Molecular Ecology Année : 1999

Armadillos exhibit less genetic polymorphism in North America than in South America: nuclear and mitochondrial data confirm a founder effect in Dasypus novemcinctus (Xenarthra).

Résumé

Heterozygosity at eight nuclear enzymatic loci and mitochondrial DNA control region (D-loop) sequence polymorphism was compared between North and South American nine-banded armadillos (Dasypus novemcinctus: Xenarthra, Dasypodidae). All markers revealed a striking genetic homogeneity amongst Texas, Louisiana, and Mississippi individuals, vs. the usual level of polymorphism for the French Guiana population. This may reflect a founder effect during colonization of North America. Occurrence of polymorphism in the D-loop microsatellite motif of North American armadillos suggests a recent recovery of mitochondrial variability. Phylogeographic analyses using Dasypus kappleri as outgroup provides evidence for a clear separation between North and South American control region haplotypes.
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halsde-00192969 , version 1 (30-11-2007)

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Dorothée Huchon, Frédéric Delsuc, François M. Catzeflis, Emmanuel J.P. Douzery. Armadillos exhibit less genetic polymorphism in North America than in South America: nuclear and mitochondrial data confirm a founder effect in Dasypus novemcinctus (Xenarthra).. Molecular Ecology, 1999, 8 (10), pp.1743-8. ⟨10.1046/j.1365-294x.1999.00768.x⟩. ⟨halsde-00192969⟩
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