Figure 5

Age of sexually dimorphic genes on the X. The upper panel shows a phylogeny and gene branch assignment according to Zhang et al.[28]. The lower panels show the proportion of genes with female-bias (red) and male-bias (blue) among genes assigned to each branch, for the kidney and liver datasets. Branches marked with parenthesis (4, 8 and 9) are not included due to low number of probes corresponding to these branches (see Methods).