Fig. 3
Heterozygosity within populations estimated from different SNP classes vs. Reynolds’ genetic distances of populations to the Gallus gallus ssp. The red circles represent the 160 domesticated populations for the corresponding SNP class. Dashed black lines represent the regression lines for the relationship between observed heterozygosity and the genetic distance to G. gallus for the overall pattern and the red lines are for the SNP classes. The areas shaded in gray represent a 95% confidence interval. The R2 values and slopes of the linear relationships are in Table 1. UTR5 and UTR3 refer to the 5′ and 3′UTR SNP classes, respectively