Fig. 2From: Genetic diversity and recent ancestry based on whole-genome sequencing of endangered Swedish cattle breedsPopulation stratification and genetic diversity. Legend: a Principal component analysis (PCA) projection based on 19 million biallelic autosomal SNPs. The first two principal components (PC1 and PC2) together explain 31% of the total variance. b Nucleotide diversity (π) of the genic and non-genic regions of autosomesBack to article page