Fig. 3
From: Optimal sequencing depth design for whole genome re-sequencing in pigs
Population structure of sequenced individuals. (a) Principle component analysis (PCA) of individuals. Different symbols and colors indicated the different pigs by breed. PC1: first principal component; PC2: second principal component. (b) Heatmap of all 9 sequenced individuals using the molecular relationship matrix. The exact genomic relationship between two individuals is shown in each small lattice