Fig. 2From: Analysis of codon usage bias of WRKY transcription factors in Helianthus annuusENC-plot analysis in HaWRKY genome. The solid curve represents the expected positions of genes when the codon usage was only determined by the GC3s composition. Note: ENC, effective number of codons; GC3s, the G + C content at the third position of synonymous codonsBack to article page