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Ancient human parallel lineages within North America contributed to a coastal expansion

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Science  01 Jun 2018:
Vol. 360, Issue 6392, pp. 1024-1027
DOI: 10.1126/science.aar6851
  • Fig. 1 Ancient individuals, population genetic analyses and modeling.

    (A) Sites of newly sequenced ancient individuals are designated by colored triangles. Comparative modern populations and ancient individuals are designated by black circles and triangles, respectively. (B) PCA with ancient individuals projected onto modern Native American and Siberian variation. Inset: Ancient genomes projected onto modern worldwide data. (C) Visualization of model-based ancestry analysis at fivefold cross-validation–supported K = 9 ancestral components (15). Underlines denote new and ancient genomes; italics, published ancient genomes; single asterisks, masked data; double asterisks, Oceanian populations including Onge, Aeta, and Agta (15). (D) Probability area of radiocarbon dates grouped by population and calibrated with IntCal13 (colored area) and Marine13 (light gray area) (28) where appropriate (15). (E) A model that explains genetic diversity in the Late Southern Channel Island populations through three-way admixture.

  • Fig. 2 Visual model of ancestry components and distribution of proportions in the Americas.

    (A) A model with four admixture events that offers a good fit to the data (Z = 0.888) (15). (B) Scale of ANC-B ancestry from 0% in Anzick-1 to 100% in the ASO and modern Algonquian-speaking populations.

  • Fig. 3 Dispersal models that are consistent with the results of this study.

    Red and blue indicate ANC-A and ANC-B, respectively; symbols denote admixture event(s). Locations of admixture events are hypothetical. (A) A model with one admixture event in North America. (B) A model in which an ANC-B population first reached South America, followed by an ANC-A population with multiple admixture events. (C) The same model as (B), but reversing the populations. (D) A model with multiple admixture events and dispersals.

Supplementary Materials

  • Ancient human parallel lineages within North America contributed to a coastal expansion

    C. L. Scheib, Hongjie Li, Tariq Desai, Vivian Link, Christopher Kendall, Genevieve Dewar, Peter William Griffith, Alexander Mörseburg, John R. Johnson, Amiee Potter, Susan L. Kerr, Phillip Endicott, John Lindo, Marc Haber, Yali Xue, Chris Tyler-Smith, Manjinder S. Sandhu, Joseph G. Lorenz, Tori D. Randall, Zuzana Faltyskova, Luca Pagani, Petr Danecek, Tamsin C. O’Connell, Patricia Martz, Alan S. Boraas, Brian F. Byrd, Alan Leventhal, Rosemary Cambra, Ronald Williamson, Louis Lesage, Brian Holguin, Ernestine Ygnacio-De Soto, JohnTommy Rosas, Mait Metspalu, Jay T. Stock, Andrea Manica, Aylwyn Scally, Daniel Wegmann, Ripan S. Malhi, Toomas Kivisild

    Materials/Methods, Supplementary Text, Tables, Figures, and/or References

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    • Supplementary Text
    • Figs S1 to S14
    • Tables S1 to S12
    • Captions for data S1 to S4
    • References
    Data S1
    List of Y chromosome haplogroup Q defining sites by position.
    Data S2
    Populations and individuals used for PCA and ADMIXTURE analysis.
    Data S3
    Results of outgroup f3 and D statistical tests for ancient populations.
    Data S4
    Example MapDamage and Fragment Misincorporation plots.

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