Skip to main content
Figure 1 | BMC Evolutionary Biology

Figure 1

From: An evolutionary preserved intergenic spacer in gadiform mitogenomes generates a long noncoding RNA

Figure 1

Organization of T-P spacer. A. Gene content and organization of European hake mitochondrial genome (Mm1 specimen) presented as a linear map of the circular mtDNA. All protein genes, except ND6, are encoded by the H-strand. Abbreviations: SSU and LSU, mitochondrial small- and large-subunit ribosomal RNA genes; ND1-6, NADH dehydrogenase subunit 1 to 6; COI-III, cytochrome c oxidase subunit I to III; A6 and A8, ATPase subunit 6 and 8; CytB, cytochrome B; oriH and oriL, origin of H-strand and L-strand replication; CR, control region containing the D-loop; tRNA genes are indicated by the standard one-letter symbols for amino acids. H-strand and L-strand encoded tRNA genes are indicated above and below the diagram, respectively. T-P spacer is indicated below the diagram, and position of the 42-bp insertion in the ND6 gene corresponding to 14 amino acids is indicated by arrow above. B. Organization of the European hake T-P spacer in specimens Mm1 and Mm2. Different direct repeat motifs are indicated by green (conserved repeats), yellow (optional repeats), and blue (heteroplasmic tandem repeats, HTR) boxes. Two copies of the Box motif are present. C. Organization of the Silvery pout (G. argenteus) T-P spacer containing three Box-motifs. The third copy of the direct repeat (red boxes) is truncated. Heteroplasmic sites (H) are indicated. D. Organization of the Atlantic cod (G. morhua) T-P spacer. About 1% (3/225) of analyzed specimens harbor a direct repeat duplication (blue box).

Back to article page