Fig. 2From: Genome-wide association analysis reveals that EDNRB2 causes a dose-dependent loss of pigmentation in ducks SNP information and population structure analysis. a The number of SNPs within a 1 Mb window size distributed across all chromosomes. b Principal Component Analysis. PCA was conducted on the SNP information of each sample using the GCTA tool. The red, green and blue dots represent individuals with different plumage patternsBack to article page