Figure 5From: Synonymous codon usage bias is correlative to intron number and shows disequilibrium among exons in plantsThe association between the DNA methylation induced conversion of C to T and SCUB based on intron number. A, C: SC frequencies based on the second-third nucleotide combinations (NNN); B, D, SC frequencies based on the third-next codon’s first nucleotide combinations (NN|N). The equivalent associations in the other genomes investigated are shown in Additional file 7: Figure S6 and Additional file 8: Figure S7.Back to article page