Figure 2.

(A) The codon usage abundance in mitochondrial genomes of Lethrinus species, including L. atlanticus; (B) a comparative analysis of relative synonymous codon usage (RSCU) across Lethrinus species, where collective RSCU values are plotted on the y-axis against codons for each amino acid on the x-axis; (C) codon distribution per thousand codon values for all amino acids in the mitochondrial genomes of the three Lethrinus species; and (D) a box plot illustrating the pairwise deviation of the nonsynonymous (Ka)/synonymous (Ks) ratio for PCGs in the mitogenomes of the three Lethrinus species.