Extended Data Fig. 2: PCA based on the Illumina dataset.
From: Palaeo-Eskimo genetic ancestry and the peopling of Chukotka and North America
A plot of two principal components (PC1 versus PC2) calculated using PLINK2 is shown (linkage disequilibrium pruning was not applied). No outliers were excluded for this analysis, which was based on 642 individuals and 524,830 loci. The following meta-populations most relevant for our study are plotted: present-day Eskimo–Aleut and Chukotko-Kamchatkan speakers, ancient Chukotkan Neo-Eskimos (Ekven and Uelen sites), ancient Aleuts, Palaeo-Eskimos (the Saqqaq, Middle Dorset, and Late Dorset individuals), ancient Northern Athabaskans, present-day Na-Dene speakers, Northern and Southern First Peoples, West and East Siberians, the Ust’-Belaya Angara ancient Siberian group, Southeast Asians, and Europeans. Radiocarbon dates in cal. yr bp are shown for ancient samples. For individuals, 95% confidence intervals are shown, and for groups of individuals, minimal and maximal median dates among individuals are shown.
