Henn Ref3 K=11 Admixture

There have been two Henn et al papers since I started this project.

  1. Hunter-gatherer genomic diversity suggests a southern African origin for modern humans by Brenna M. Henn, Christopher R. Gignoux, Matthew Jobin, Julie M. Granka, J. M. Macpherson, Jeffrey M. Kidd, Laura Rodríguez-Botigué, Sohini Ramachandran, Lawrence Hon, Abra Brisbin, Alice A. Lin, Peter A. Underhill, David Comas, Kenneth K. Kidd, Paul J. Norman, Peter Parham, Carlos D. Bustamante, Joanna L. Mountain, and Marcus W. Feldman
  2. Genomic Ancestry of North Africans Supports Back-to-Africa Migrations by Brenna M. Henn, Laura R. Botigué, Simon Gravel, Wei Wang, Abra Brisbin, Jake K. Byrnes, Karima Fadhlaoui-Zid, Pierre A. Zalloua, Andres Moreno-Estrada, Jaume Bertranpetit, Carlos D. Bustamante, David Comas

The data for both is available online:

I ran reference 3 K=11 admixture on these datasets using about 48,000 SNPs.

Here is the spreadsheet with the Henn group averages for reference 3 admixture at K=11 ancestral components.

Note that the Sandawe, Hadza and San from Henn2011 were already included in Reference 3 and are not listed here.


  1. Could the Egyptian and Qatari South Asian components come from a back migration into the Middle East?

    Is the South Asian found in Libya noise? Since its not found among the other North African countries. I am thinking that its close proximity to Egypt could have introduced this component. But given the timelines, shouldn't this also be visible amongst other North African countries?

    • I think it's just that South Asian component is present in the Middle East. Egyptians are more like people from Arabian peninsula and Levant than Libyans are.

  2. BTW - Off topic here, does anyone know what happened to the DNA forum site?

  3. Ref3 Admixture Dendrograms | Harappa Ancestry Project - pingback on March 19, 2012 at 6:04 am

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