Fig. 1From: The superiority of multi-trait models with genotype-by-environment interactions in a limited number of environments for genomic prediction in pigsPrincipal component analysis (PCA) of two Yorkshire pig populations. Beijing and Fujian represent two Yorkshire pig populations from two Chinese pig breeding farms; PC1 (3.5%) = first principal component (variance explained by PC1 = 3.5%); PC2 (2.3%) = second principal component (variance explained by PC2 = 2.3%); PC3 (1.3%) = third principal component (variance explained by PC3 = 1.3%)Back to article page