Fig. 4

Comparative analyses of two eucotylid mitogenomes. a Sliding window analysis of the alignment of 11 protein-coding genes (PCGs), 2 rRNAs and 18 coalescent tRNAs (trnE and trnG are omitted as we were unable to obtain their sequences for one of the species). The black line represents nucleotide variation in a window of 200 bp (step size = 20 bp, with the values inserted at its mid-point). Gene boundaries are indicated by colour with mean variation ratio per gene shown above each gene. The region indicated by the circle in cox1 gene shows nucleotide variation in the additional sequences at the 5′ end of this gene in both studied eucotylid mt genomes b The Kimura-2-parameter distance (K2P) among 11 PCGs of eucotylid mitogenomes