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Thread: 40,000 year old sample from Asia-Tianyuan Cave

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    40,000 year old sample from Asia-Tianyuan Cave

    40,000-Year-Old Individual from Asia Provides
    Insight into Early Population Structure in Eurasia

    Melinda A. Yang, Xing Gao,
    Christoph Theunert, ..., Svante Pa€abo, €
    Janet Kelso, Qiaomei Fu

    "In Brief
    Yang et al. show that the genome of a 40
    kya individual from Tianyuan cave near
    Beijing is more similar to Asians than to
    Europeans, past or present. His similarity
    to a 35 kya European and to individuals
    from some South American populations
    suggests a persistence of population
    structure in Asia that lasted until the
    colonization of the Americas."

    By at least 45,000 years before present, anatomically
    modern humans had spread across Eurasia [1–3],
    but it is not well known how diverse these early populations
    were and whether they contributed substantially
    to later people or represent early modern human
    expansions into Eurasia that left no surviving descendants
    today. Analyses of genome-wide data from
    several ancient individuals from Western Eurasia and
    Siberia have shown that some of these individuals
    have relationships to present-day Europeans [4, 5]
    while others did not contribute to present-day
    Eurasian populations [3, 6]. As contributions from Upper
    Paleolithic populations in Eastern Eurasia to present-day
    humans and their relationship to other early
    Eurasians is not clear, we generated genome-wide
    data from a 40,000-year-old individual from Tianyuan
    Cave, China, [1, 7] to study his relationship to ancient
    and present-day humans. We find that he is more
    related to present-day and ancient Asians than he is
    to Europeans, but he shares more alleles with a
    35,000-year-old European individual than he shares
    with other ancient Europeans, indicating that the separation
    between early Europeans and early Asians was
    not a single population split. We also find that the Tianyuan
    individual shares more alleles with some Native
    American groups in South America than with Native
    Americans elsewhere, providing further support for
    population substructure in Asia [8] and suggesting
    that this persisted from 40,000 years ago until the colonization
    of the Americas. Our study of the Tianyuan individual
    highlights the complex migration and subdivision
    of early human populations in Eurasia"

    See the three figures here:

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    his/her mtDNA was already known, it is B, which is present in China and southeast Asia and among Native Americans

    now we have autosomal too
    nothing surprising, except the resemblance with Goyet
    I would guess he is related the founding father of the C1a1 clade which is concentrated in the Ryukyu Islands today

    I'll read it in detail later

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