Figure 3From: Phase distribution of spliceosomal introns: implications for intron originThe evolution of intron density and GC content in 79 orthologs of ribosomal protein genes. The numbers show intron densities whereas the percentages show GC contents. A. tha, A. thaliana; O. sat, O. sativa; C. rei, C. reinhardtii; H. sap, H. sapiens.Back to article page