Following the Evolution of Homo Sapiens across Africa using a Uniparental Genetic Guide
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Abstract
The origin and evolution of modern humans in Africa has reached a multidisciplinary consensus but the age and regions where it originated and evolved are current topics of discussion. In this study I put forward an integrative model guided by the phylogeny and phylogeography of mitochondrial DNA and Y-chromosome haplogroups. I propose an early origin of modern humans in northwest Africa in a temporal window of 257-345 thousand years ago. A first population split in central Africa around 175-288 thousand years ago. A subsequent northward spread with additional population subdivisions during a long statistical interval that culminated in a first successful out of Africa migration around 130 thousand years ago. A population constriction in southwest Asia motivated an early return to Africa between 70 and 100 thousand years ago. This ample Eurasian-ebb to Africa, detected by mitochondrial haplogroup L3 and Y-chromosome haplogroup E preceded other later and geographically more limited Eurasian backflows. The archaeological and fossil finds that could be coetaneous to this molecular journey have been integrated into this interdisciplinary model.
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How to Cite
CABRERA, Vicente Martinez.
Following the Evolution of Homo Sapiens across Africa using a Uniparental Genetic Guide.
Medical Research Archives, [S.l.], v. 11, n. 1, jan. 2023.
ISSN 2375-1924.
Available at: <https://esmed.org/MRA/mra/article/view/3460>. Date accessed: 23 nov. 2024.
doi: https://doi.org/10.18103/mra.v11i1.3460.
Section
Research Articles
The Medical Research Archives grants authors the right to publish and reproduce the unrevised contribution in whole or in part at any time and in any form for any scholarly non-commercial purpose with the condition that all publications of the contribution include a full citation to the journal as published by the Medical Research Archives.
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