Figure 4
From: Analysis of codon usage bias of mitochondrial genome in Bombyx moriand its relation to evolution
GC12 against GC3 value of each gene. GC12 stands for the average value of GC content in the first and second position of the codons (GC1 and GC2), while GC3 refers to the GC content in the third position. The diagonalin and the regression curve were colored in red and green, respectively. The regression curve can describe as y = −0.242x + 0.24, R2 = 0.0597, and GC12 showed no correlation with GC3.