ArticleBMC evolutionary biology2010
Population expansion in the North African late Pleistocene signalled by mitochondrial DNA haplogroup U6.
Article in BMC evolutionary biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.
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32 citing papers in PubMed, 65 citations in OpenAlex.
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- Quantifying the legacy of the Chinese Neolithic on the maternal genetic heritage of Taiwan and Island Southeast Asia.Human genetics · 2016Article
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- Mitogenomic Meta-Analysis Identifies Two Phases of Migration in the History of Eastern Eurasian Sheep.Molecular biology and evolution · 2015Article
- Isolation and prominent aboriginal maternal legacy in the present-day population of La Gomera (Canary Islands).European journal of human genetics : EJHG · 2015Article
- Genetic stratigraphy of key demographic events in Arabia.PloS one · 2015Article
- Carriers of Mitochondrial DNA Macrohaplogroup N Lineages Reached Australia around 50,000 Years Ago following a Northern Asian Route.PloS one · 2015Article
- Early Holocenic and Historic mtDNA African Signatures in the Iberian Peninsula: The Andalusian Region as a Paradigm.PloS one · 2015Article
- Global human frequencies of predicted nuclear pathogenic variants and the role played by protein hydrophobicity in pathogenicity potential.Scientific reports · 2014Article
- Improved calibration of the human mitochondrial clock using ancient genomes.Molecular biology and evolution · 2014Article
- The history of the North African mitochondrial DNA haplogroup U6 gene flow into the African, Eurasian and American continents.BMC evolutionary biology · 2014Article
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11 authors at 7 institutions in 4 countries.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundThe archaeology of North Africa remains enigmatic, with questions of population continuity versus discontinuity taking centre-stage. Debates have focused on population transitions between the bearers of the Middle Palaeolithic Aterian industry and the later Upper Palaeolithic populations of the Maghreb, as well as between the late Pleistocene and Holocene.
resultsImproved resolution of the mitochondrial DNA (mtDNA) haplogroup U6 phylogeny, by the screening of 39 new complete sequences, has enabled us to infer a signal of moderate population expansion using Bayesian coalescent methods. To ascertain the time for this expansion, we applied both a mutation rate accounting for purifying selection and one with an internal calibration based on four approximate archaeological dates: the settlement of the Canary Islands, the settlement of Sardinia and its internal population re-expansion, and the split between haplogroups U5 and U6 around the time of the first modern human settlement of the Near East.
conclusionsA Bayesian skyline plot placed the main expansion in the time frame of the Late Pleistocene, around 20 ka, and spatial smoothing techniques suggested that the most probable geographic region for this demographic event was to the west of North Africa. A comparison with U6's European sister clade, U5, revealed a stronger population expansion at around this time in Europe. Also in contrast with U5, a weak signal of a recent population expansion in the last 5,000 years was observed in North Africa, pointing to a moderate impact of the late Neolithic on the local population size of the southern Mediterranean coast.
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