Palermo Trapani
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New paper in Current Biology "Spatial and temporal heterogeneity in human mobility patterns in Holocene Southwest Asia and the Eastern Mediterranean" in Current Biology 8 December 2022 by Kopetink et al. A quick reading of the paper suggest some new samples not yet published. The paper already has cited the Southern Arc papers so I would think the results have been reconciled to those findings, maybe adding a little more information to what those papers documented (35 new samples) . I didn't see the paper already linked so if it has been, please delete or combine thread.
https://www.sciencedirect.com/science/article/pii/S0960982222018243
Summary
We present a spatiotemporal picture of human genetic diversity in Anatolia, Iran, Levant, South Caucasus, and the Aegean, a broad region that experienced the earliest Neolithic transition and the emergence of complex hierarchical societies. Combining 35 new ancient shotgun genomes with 382 ancient and 23 present-day published genomes, we found that genetic diversity within each region steadily increased through the Holocene. We further observed that the inferred sources of gene flow shifted in time. In the first half of the Holocene, Southwest Asian and the East Mediterranean populations homogenized among themselves. Starting with the Bronze Age, however, regional populations diverged from each other, most likely driven by gene flow from external sources, which we term “the expanding mobility model.” Interestingly, this increase in inter-regional divergence can be captured by outgroup-f3-based genetic distances, but not by the commonly used FST statistic, due to the sensitivity of FST, but not outgroup-f3, to within-population diversity. Finally, we report a temporal trend of increasing male bias in admixture events through the Holocene.
Keywords
Southwest Asia
East Mediterranean
ancient DNA
human mobility
sex bias
admixture
https://www.sciencedirect.com/science/article/pii/S0960982222018243
Summary
We present a spatiotemporal picture of human genetic diversity in Anatolia, Iran, Levant, South Caucasus, and the Aegean, a broad region that experienced the earliest Neolithic transition and the emergence of complex hierarchical societies. Combining 35 new ancient shotgun genomes with 382 ancient and 23 present-day published genomes, we found that genetic diversity within each region steadily increased through the Holocene. We further observed that the inferred sources of gene flow shifted in time. In the first half of the Holocene, Southwest Asian and the East Mediterranean populations homogenized among themselves. Starting with the Bronze Age, however, regional populations diverged from each other, most likely driven by gene flow from external sources, which we term “the expanding mobility model.” Interestingly, this increase in inter-regional divergence can be captured by outgroup-f3-based genetic distances, but not by the commonly used FST statistic, due to the sensitivity of FST, but not outgroup-f3, to within-population diversity. Finally, we report a temporal trend of increasing male bias in admixture events through the Holocene.
Keywords
Southwest Asia
East Mediterranean
ancient DNA
human mobility
sex bias
admixture
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