Fig. 2
From: Selection shapes turnover and magnitude of sex-biased expression in Drosophila gonads
Interspecies divergence of gene expression level of testis and ovary profiles in four species of Drosophila. a) Hierarchical clustering of expression level. The heatmap shown comprises a representative sample of all genes under study (genes with FPKM≥1 included); b) The Spearman R correlations for expression level (FPKM) of Dmel versus (vs) the other three species in the phylogeny (P < 2.0X10− 7 for each contrast; all genes included). Species names are abbreviated as described in the main text