Fig. 4

Correspondence analysis of nucleotide composition of all protein coding genes located in the H strand of all Cyprinodontiformes analyzed. Blue dots represent the species: AC (A. charrua), KM (K. marmoratus), NF (N. furzeri), AP (A. panchax), CR (C. rubrofluviatilis) and FO (F. olivaceus). Red triangles indicate the nucleotides at 1st, 2nd and 3rd codon position