Fig. 1

Maps of the six mitogenomes sequenced in this study. The corresponding species name and length are given inside each genome map. The outer ring comprises all standard and putative coding sequences, identified with the following color code: blue, genes encoding electron transport chain and ATP-synthase subunits; yellow, tRNA genes; green, rRNA genes (see Additional file 1: Table S1 for details). All the genes are encoded on the same strand. The middle ring represents GC content (dark grey). The inner ring represents scale