Author(s)

Kenji Sorimachi, Teiji Okayasu, Shuji Ohhira, Ichio Fukasawa, Nobuhide Masawa

Center of Medical Informatics, Dokkyo Medical University, Tochigi, Japan.
Department of Anatomic Diagnostic Pathology, Dokkyo Medical University, Tochigi, Japan.
Department of Obstetrics and Gynecology, Dokkyo Medical University, Tochigi, Japan.
Laboratory for International Environmental Health, Dokkyo Medical University, Tochigi, Japan.

The examination of organelle nucleotide contents across a range of groups can provide insight into evolutionary history. We compared the nucleotide contents of a large number of vertebrate and high C/G ratio invertebrate mitochondria in both coding/non-coding regions and complete strands. For most nucleotides tested, high regression coefficients were obtained; when plotted with lines of best fit, G and T contents formed a cuneiform, and C and A contents overlapped. These findings suggest that vertebrate and high C/G ratio invertebrate mitochondria descended independently from the same origin.

Evolution; Genome; Mitochondria;Nucleotide Contents; Vertebrate; Invertebrate

Sorimachi, K. , Okayasu, T. , Ohhira, S. , Fukasawa, I. and Masawa, N. (2012) Evidence for the independent divergence of vertebrate and high C/G ratio invertebrate mitochondria from the same origin. Natural Science, 4, 479-483. doi: 10.4236/ns.2012.47064.