Figure 1From: An examination of positive selection and changing effective population size in Angus and Holstein cattle populations (Bos taurus) using a high density SNP genotyping platform and the contribution of ancient polymorphism to genomic diversity in Domestic cattleFrequency spectrum of the derived alleles for Holstein (A) and Angus (B), plotted as f(p) against p and the expected distribution under neutrality k/p, where p = the frequency of the derived allele.Back to article page