Admixture analyses
A number of different admixture tests are available to those people who have taken an autosomal DNA test with 23andMe, Family Tree DNA or deCODE genetics.
Admixture analysis by Doug McDonald
Doug does two types of free tests. One is like 23andme's "Advanced Global Similarity", except that he does more "dimensions". For people with ancestry outside Europe four of these are shown. For pure Europeans his world graph is essentially identical to 23andMe's so instead he shows a European graph, which includes (at lower right) the Adygei, a tribe living on the eastern shores of the Black Sea. The higher dimensions do not give additional information for pure Europeans so they are not shown. The results are sent to participants on graphs as .png files. Doug also does quantitative tests. These come in three flavors, first without South Asia (represented by Pakistan) and the Middle East, second with South Asia, and finally with all three, as comparison panels. If you are interested in participating in Doug's project contact him at .
Dodecad Ancestry Project organized by Dienekes Pontikos
See http://dodecad.blogspot.com for details. Also see the summary written on November 7, 2010 on his anthropology blog. This analysis is currently closed to participants, but Dienekes says that he "may or may not process data from relatives, or non-target groups that was already sent to me and that was not assigned a DOD number." Contact him directly at to see if he might be willing to accept your data at some future point in time.
Total Genomic Ancestry Classification
This test compares your 23andMe or deCODEme data with that of over 1600 people from all over the world. The test provides a detailed analysis of which populations and individuals a person is genetically related to. The cost is $99 per analysis. See archive of http://www.ethnoancestry.com/TGAC_detail.html for details. For a list of the reference populations see http://www.ethnoancestry.com/TGAC_Populations.
Eurogenes analysis by David Wesolowski
David does free analysis of raw data files from both 23andMe and FTDNA's Family Finder using the programs ADMIXTURE, BEAGLE, PLINK and ADMIXMAP. Results are distributed as Excel spreadsheets and as .png files. See http://eurogenes.blogspot.com/ and http://www.bga101.blogspot.com for background. Also see http://www.23andme.com/you/community/thread/5182.
Information on how to interpret the results may be found at archive of http://bga101.blogspot.com/2010/10/brief-guide-to-output-youre-seeing.html.
If you are interested in participating in his project contact him at .
Anders does a free analysis of admixture for people of Scandinavian ancestry who have been tested by 23andMe. Participants must have their primary ancestry from Norway, Sweden or Finland. The raw 23andMe data files are analyzed using the program ADMIXTURE and the ancestry is presented in a STRUCTURE like graph. For additional background see http://archiver.rootsweb.ancestry.com/th/read/GENEALOGY-DNA/2010-10/12863480
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http://archiver.rootsweb.ancestry.com/th/read/GENEALOGY-DNA/2010-11/12891438
80. If you are interested in participating in his project contact him at .
Global Similarity analysis by 23andMe
This is a standard feature for everyone who has been tested by 23andMe and can be found by clicking on the "Global Similarity" tab when logged in to one's 23andMe account and then by clicking on "advanced view". The primary clusters included in the analysis by 23andMe are European, Near Eastern, African, Central/South Asian, Oceanian, Native American, and East Asian. Each cluster is typically subdivided into additional sub-clusters.
Population Finder by Family Tree DNA
Population Finder is a standard feature for those who have taken Family Tree DNA's "Family Finder" test. Population Finder uses principal component analysis (PCA) to estimate biogeographical percentages of autosomal DNA. The population samples used in the analysis are continental groups (Africa, America, East Asia, Europe, Middle Eastern, Oceania, and South Asia). The analysis does not include the sex chromosomes or the mtDNA. Family Tree DNA maintains a FAQ page for Population Finder at http://www.familytreedna.com/faq/answers/default.aspx?faqid=22. Population Finder is currently in beta, so the results of the analysis can be expected to change as the tool undergoes further development.
For an explanation of the workings of Population Finder and the meaning of the Middle Eastern percentages seen in many Population Finder results see the guest blog post by Doug McDonald biogeograpical analysis.
Magnus Ducatus Lituaniae Project
A biogeographical analysis project for the territories of the former Grand Duchy of Lithuania. Admin: Vadim Verenich Co-admin: Leon Kull. See the Magnus Ducatus Lituaniae Project blog for further details.
External links
- The rise of the genome bloggers Nature, 15 December 2010, 468, pp 880-881.
- My DNA Tribes results by Aidan Byrne, 15 March 2013.
