Mitochondrial genetic diversity and its determinants in island melanesia

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dc.contributor.authorMgone, Charles S.
dc.date.accessioned2020-06-29T12:00:04Z
dc.date.available2020-06-29T12:00:04Z
dc.date.issued2005
dc.description.abstractFor a long time, many physical anthropologists and human geneticists considered Island Melanesian populations to be genetically impoverished, dominated by the effects of random genetic drift because of their small sizes, internally very homogeneous, and therefore of little relevance in reconstructing past human migrations. This view is changing. Here we present the developing detailed picture of mitochondrial DNA (mtDNA) variation in eastern New Guinea and Island Melanesia that reflects linguistic distinctions within the region as well as considerable island-by-island isolation. It also appears that the patterns of variation reflect marital migration distinctions between bush and beach populations. We have identified a number of regionally specific mtDNA variants. We also question the widely accepted hypothesis that the mtDNA variant referred to as the ‘Polynesian Motif’ (or alternatively the ‘Austronesian Motif’) developed outside this region somewhere to the west. It may well have first appeared among certain non-Austronesian speaking groups in eastern New Guinea or the Bismarcks. Overall, the developing mtDNA pattern appears to be more easily reconciled with that of other genetic and biometric variables.en_US
dc.identifier.citationFriedlaender, J.S., Gentz, F., Friedlaender, F.R., Kaestle, F., Schurr, T.G., Koki, G., Schanfield, M., McDonough, J., Smith, L., Cerchio, S. and Mgone, C., 2005. Mitochondrial genetic diversity and its determinants in Island Melanesia.en_US
dc.identifier.urihttps://repository.upenn.edu/anthro_papers/163/
dc.identifier.urihttp://hdl.handle.net/123456789/425
dc.language.isoenen_US
dc.publisherUniversity of Pennsylvaniaen_US
dc.subjectMitochondriaen_US
dc.subjectGenetic diversityen_US
dc.subjectMelanesiaen_US
dc.titleMitochondrial genetic diversity and its determinants in island melanesiaen_US
dc.typeArticleen_US

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