Skip to main content


Figure 4 | BMC Evolutionary Biology

Figure 4

From: A Δ11 desaturase gene genealogy reveals two divergent allelic classes within the European corn borer (Ostrinia nubilalis)

Figure 4

Folded allele frequency spectrum. The plots illustrate the expected (solid line) and observed (grey bars) frequencies of alleles, ranging from those present as singletons through those present in half (18/36) of ECB haplotypes sampled. The folded rather than unfolded spectrum is provided because the two ACB sequences are dissimilar, and therefore neither was used to infer the ancestral state. The observed allele frequency spectrum has a two-fold excess of singleton alleles (observed frequency of alleles present in a single individual = 0.508 [expected frequency = 0.248]) and three consecutive excesses of intermediate frequency alleles (observed frequency of alleles present in 12/36, 13/36, and 14/36 individuals = 0.0412, 0.100, and 0.117 [expected frequency = 0.030, 0.029, 0.028]).

Back to article page