Figure 4

Heterozygosity loss and selected genes in the crested ibis genome. (a) Distributions of heterozygosity, H _p (left), and corresponding Z transformations, ZH _p (right), for all 500-kb windows (n = 2,513). μ, mean; σ, standard deviation; red vertical dashed line, threshold at ZH _p  = -2.326 (q <0.01 in normal distribution). (b) The negative end (error head in a) of the ZH _p distribution presented along chromosomes 1-15 (color-coded from left to right). The horizontal dashed line indicates the threshold (see a). Genes residing within a window with ZH _p  < -2.326 are indicated (Additional file 1: Table S14).