Monday, June 29, 2015
K8 results for selected Allentoft et al. genomes
Running the ancient genomes from Allentoft et al. in ADMIXTURE is proving a challenge. The reasons for this are covered in the paper; see section 6 in the supp info. Fortunately, I managed to obtain robust outcomes using my K8 model for ten samples representing almost all of the main archeological groups studied by the authors.
The spreadsheet with the new results is here. The full K8 spreadsheet is here. Below you can see a Principal Component Analysis (PCA) produced with the data. Click on the image to go to my drive, where you can download a high quality copy.
Some of the outcomes might look unusual, but as I say, they are solid. I double checked each one with an unsupervised ADMIXTURE test and genotype-based PCA. For instance, the genotype-based PCA featuring RISE247 and RISE479, respectively, look like this:
Allentoft et al., Bronze Age population dynamics, selection, and the formation of Eurasian genetic structure, Nature 522, 167–172 (11 June 2015) doi:10.1038/nature14507
Bell Beaker, Corded Ware, EHG and Yamnaya genomes in the fateful triangle