K = 14 admixture analysis of Lapita genomes

Below is a plot for a K = 14 admixture analysis that includes four genomes from the Lapita culture on the islands of Vanuatu and Tonga in the South Pacific. The table above the plot gives some information for these samples.

The plot shows that the people of the Lapita culture were genetically similar to Taiwanese aborigines like the Ami and Atayal, and the indigenous Igorot people of the Philippines. It also shows that they had no Melanesian admixture.

Sample  Location  Date BP
I1368   Vanuatu   2990–2740
I1369   Vanuatu   3000–2750
I1370   Vanuatu   3110–2780
CP30    Tonga     2680–2340


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9 comments on “K = 14 admixture analysis of Lapita genomes
  1. aa023 says:

    I know thats off topic, but can you tell what subclades are y dna samples Paglici and i0999 halberstadt?

    • Genetiker says:

      I’ve added a link to the Y-SNP calls for Paglicci 133 to my post here. He was reported to have been I, but he was actually C1-Z3998(xC1b). The positive calls for F-PF2613, I-CTS674/PF3630, and I-CTS9269/PF3783 are due to DNA damage.

      I0099 was R1a1a1b1a2-S204/Z91*.

  2. aa023 says:

    What y SNP are samples i0406 La Mina, i1303 El Mirador, i0432 Poltavka outlier,, i0419 Potapovka?

  3. M says:

    Hi Genetiker,

    Recently I am trying to learn about Rhesus negative factor in Europeans, why it is uncommonly high in Basques, and where it originated. Would it be possible to get you to check some of the Ice Age Europe samples for i4001527 (used by 23andme to determine Rhesus factor) or http://snpedia.com/index.php/Rs590787 so we can learn their Rhesus factor type?

    • Genetiker says:

      The recently published SNP capture data for Ice Age European samples doesn’t include rs590787. I’ve looked at many ancient samples for which there’s shotgun sequence data, and they all show the ancestral A allele of rs590787. None of them show the G allele that’s supposed to be associated with the deletion of the RHD gene. That leads me to believe that there’s something wrong with rs590787 as a proxy for the RHD deletion. Note that rs590787 is flagged as suspect by dbSNP.

      I don’t know what the position of i4001527 is, so there’s nothing I can do with it.

      • Sumeria says:

        Thank you for your reply. Hopefully one day this question is answered. I think Rhesus compatibility is highly relevant to the distribution of Y and mtDNA subclades in Europe.

  4. aa023 says:

    Genetiker do you know about this samples? Can you look at them?
    There are samples from Patagonia.


    This is Bronze age polish sample.

  5. InSearchOf says:

    Gentiker, where are you? I have been having a withdrawal. Davidski’s blog can only hold me over for so long.

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