Fig. 5
From: An analysis of codon utilization patterns in the chloroplast genomes of three species of Coffea
Correlation analysis of axis 1, axis 2 and codon utilization index of chloroplast genomes of three Coffea species. a Coffea arabica b Coffea canephora c Coffea liberica. GC3s indicates the GC content at the third codon position of synonymous codons; ENc represents the effective number of codons; CAI means the codon adaptation index; Laa is defined as the total number of amino acids. * represents P < 0.05, ** represents P < 0.01