TITLE:
Evidence for the independent divergence of vertebrate and high C/G ratio invertebrate mitochondria from the same origin
AUTHORS:
Kenji Sorimachi, Teiji Okayasu, Shuji Ohhira, Ichio Fukasawa, Nobuhide Masawa
KEYWORDS:
Evolution; Genome; Mitochondria;Nucleotide Contents; Vertebrate; Invertebrate
JOURNAL NAME:
Natural Science,
Vol.4 No.7,
July
10,
2012
ABSTRACT: 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.