Figure 1From: Coding region structural heterogeneity and turnover of transcription start sites contribute to divergence in expression between duplicate genesThe decline in the proportion of group A duplicate gene pairs with shared TSSs (shown in black) depending on the time since duplication (approximated by K S ). The proportion of human-mouse orthologous genes with conserved TSSs is shown for comparison (in gray); in this case variation in K S is due to regional variation in substitution rates.Back to article page