Fig. 2From: Phenotypic and genomic relationships between vulva score categories and reproductive performance in first-parity sowsPopulation structure. Plot of first two principal components (PC2 and PC1) generated from SNP genotypes using the complete (Farm1 + 2 + 3) dataset. Each data point represents a single animal. Red dots represent animals from Farm1, yellow represent animals from Farm2, and grey represent animals from Farm3Back to article page