Fig. 3: The mitochondrial genome of Steller’s sea cow.

A Graphical map of the complete mitochondrial genome of Steller’s sea cow with its gene features. Mitochondrial NADH dehydrogenase genes are marked by yellow color; mitochondrial cytochrome oxidase genes are marked by pink color; mitochondrial ribosomal RNA genes are marked by red color; mitochondrial ATP synthase genes are marked by green color; mitochondrial cytochrome B gene is marked by purple color; mitochondrial transfer RNA genes are marked by blue color. B Maximum likelihood phylogenetic tree reconstruction of Tethytheria species, including the extinct Steller’s sea cow, based on their coding sequences. Bootstrap values are shown by color (from lower values—red to higher values—green).