Fig. 2
From: TCF21 is related to testis growth and development in broiler chickens
Characteristics of the genotyped SNPs and population structure. 475 individuals (203 individuals from the lean line and 272 from the fat line) were randomly selected from G11 for genotyping. Genotyping was performed with the Chicken-60 K Illumina chip with 80% of the intervals between adjacent SNPs <30 kb (a). The minor allele frequency (MAF) of the SNPs in the lean and fat lines respectively, used in the GWAS study (b). Principal component analysis based on these SNPs shows the separation between the lean and fat lines in a two-dimension plot (c) and a three-dimension plot (d)