Genetic structure in North-Central Europe with the Galore approach

I first posted this in the comments of my other blog, but it is worth a post of its own.

Here is the result of applying MCLUST to a group of Central-North European populations. The maximum number of 13 clusters is reached with 5 MDS dimensions retained:

Some clusters are population-specific (e.g., #7 for Finns, #10 for Lithuanians, #12 for Russians). Some clusters are semi-specific (e.g., #3 for Hungarians, #1 for French). Some populations are split into multiple clusters (e.g., Orcadians or Germans).

Here is a neighbor-joining tree of these 13 clusters based on the first 5 MDS dimensions:

12, 13: Russians

9, 10: Balto-Slavs

5, 3, 2, 4, 1: Northwest Europeans

11: A couple of Hungarians (*)

7, 8: Orcadians

6: Finns

I generally frown upon phylogenies for human groups, as I believe that human genetic variation is better represented as a network due to lateral gene flow. However, this tree gives an idea of the relationship between clusters.

(*) It's interesting that these 2 Hungarians are the same ones that showed an elevated "Altaic" component in my K=15 analysis.