As you can see, the Chinese simply do not vary much, and are a tight cluster. But, there is a somewhat equivalent Gujarati cluster too! The HapMap sample was collected from Gujaratis in Houston. To me, it looks like that Houston population can be divided into two groups: one of the tight cluster, and the rest of the population, which is all over the place. [...] What’s more interesting is to try and understanding what’s going on with Houston Gujaratis. Anyone in the audience know?
And his 3-dimensional PCA plot: (Those on the right are Gujaratis)
So I thought I would share the admixture results for the Gujaratis for K=8. Here's the spreadsheet of the admixture proportions for Gujaratis. And here is the plot:
The ancestral components and their statistics are as follows:
It looks like a majority of the Gujarati samples have mostly South Asian ancestral component with small amounts of West Asian, European and Southeast Asian, but some Gujarati samples have much larger West Asian and/or European ancestral components.