There was a question about East Asian genetic structure. There have been a fair number of papers published on the issue. But over the years I’ve assembled a pretty large personal data set from public sources, as well as stuff people have sent me. I decided to look at the East Asian individuals and how they relate to each.

First, I focused on the major ethno-national groups (or ones of particular interest and relevance, such as Mongols). Second, I LD pruned the data set down to 96,000. Third, I did some outlier removal. For example, I wanted to include some Kalmyk data, but it turns out all the Kalmyk have European admixture at some level. And a subset of individuals from Cambodia and Vietnam are ethnic Chinese. Those were removed.

I ran ADMIXTURE K = 5 unsupervised. Treemix k = 500 and global rearrangements on, and rooted with Cambodians.

Eigenvalues 7.59041, 4.04862, 3.00559, 2.60692 and 2.01554.