The correlation between CAI values and ENC, GC%, GC12%, GC3% values. (A) the correlation between CAI values and ENC values, the black dot represented the ENC value against CAI value for each gene, the black line was generated by the correlation analysis; (B) the correlation between CAI values and GC% values, the black dot represented the GC% value against CAI value for each gene, the black line represented linear fitting line of all data; (C) the correlation between CAI values and GC12% values, the black dot represented the GC12% value against CAI value for each gene, the black line represented linear fitting line of all data; (D) the correlation between CAI values and GC3% values, the black dot represented the GC3% value against CAI value for each gene, the black line represented linear fitting line of all data.