Fig. 2: Autosomal genetic affinities.
From: The genomic history of Iberian horses since the last Ice Age
a Principal Component Analysis (PCA) of 431 ancient and modern specimens based on unlinked autosomal transversions (MAF = 1%). The first two principal components summarize 1.67% and 1.12% of the total genetic variation, respectively. b Neighbor-Joining phylogenetic tree based on the full set of autosomal transversions. Node support was assessed from 100 bootstrap pseudo-replicates, and is indicated if greater or equal to 80%. The DOM2 clade (N = 311) was collapsed for readability (see Supplementary Fig. 8 for the full tree). Colours and symbols are according to Fig. 1a.
