Figure 6.

Hamming distance versus change in GC₃ visualization across Citrus species and P. trifoliata. Relative difference GC₃ composition between genes A and B, defined as GC₃ (A)-GC₃ (B)/[GC₃ (A) + GC₃ (B)] is positively correlated with the Hamming distance between corresponding protein sequences, calculated as 1–[I (AB) + I (BA)]/[I (AA) + I (BB)], where I (AB) is the number of identities in alignment of protein A to protein B. The resulting Hamming distance was rounded to 1 DP, and an average difference in GC₃ was computed for each category.