Fig. 1.—

FPKM levels of autosomal (green) and Z-linked (orange) contigs in sex-averaged pools. Genomic location is based on inferred synteny with Bombyx mori. Plot boxes represent the median and interquartile range of FPKM expression level. Box notches are a visual aid that are approximate to the 95% confidence interval of the median and signify strong evidence that the medians differ for sample pairs if the notches do not overlap (Chambers et al. 1983). The plot tails extend to the most extreme data point that is no more than 1.5× the interquartile range.