Figure 6.

Evidence of multiple mitochondrial genome configurations. The physical map of the mitochondrial DNA (mtDNA) is displayed in a linear form, beginning with the rnl gene. Rectangles indicate genes or exons of highly conserved protein-coding regions (black), ribosomal RNAs (blue) and intron-encoded homing endonuclease genes (grey). The unit-length, monomeric mtDNA contains a large inverted repeat (purple), separated by an intra-repeat region. The intra-repeat and flanking region is shown below, with the position of tRNAs met (M) and his (H) indicated in green. SMRT reads demonstrated that the intra-repeat region exists in two orientations relative to the inverted repeats.