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Old 3rd April 2016, 04:11 AM
PNGarrison PNGarrison is offline
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Comprehensive Analysis of Pan-African Mitochondrial DNA Variation Provides New Insigh

J Genet Genomics. 2016 Mar 20;43(3):133-43. doi: 10.1016/j.jgg.2015.09.005. Epub 2015 Sep 25.

Comprehensive Analysis of Pan-African Mitochondrial DNA Variation Provides New Insights into Continental Variation and Demography.
Cerezo M1, Gusmão L2, Černý V3, Uddin N4, Syndercombe-Court D5, Gómez-Carballa A6, Göbel T7, Schneider PM7, Salas A8.
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Africa is the cradle of all human beings, and although it has been the focus of a number of genetic studies, there are many questions that remain unresolved. We have performed one of the largest and most comprehensive meta-analyses of mitochondrial DNA (mtDNA) lineages carried out in the African continent to date. We generated high-throughput mtDNA single nucleotide polymorphism (SNP) data (230 SNPs) from 2024 Africans, where more than 500 of them were additionally genotyped for the control region. These data were analyzed together with over 12,700 control region profiles collected from the literature, representing more than 300 population samples from Africa. Insights into the African homeland of humans are discussed. Phylogeographic patterns for the African continent are shown at a high phylogeographic resolution as well as at the population and regional levels. The deepest branch of the mtDNA tree, haplogroup L0, shows the highest sub-haplogroup diversity in Southeast and East Africa, suggesting this region as the homeland for modern humans. Several demographic estimates point to the coast as a facilitator of human migration in Africa, but the data indicate complex patterns, perhaps mirroring the effect of recent continental-scaled demographic events in re-shaping African mtDNA variability.
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