Mitochondrial genome in animal cells |
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Authors: | C. De Giorgi C. Saccone |
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Affiliation: | (1) Dipartimento di Biochimica e Biologia Molecolare Centro di Studio sui Mitocondri e Metabolismo Energetico (CNR), University of Bari, Bari, Italy |
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Abstract: | In the past decade, the development of new DNA, RNA, and protein technologies has greatly incremented the knowledge about the organization and expression of mitochondrial DNA. The complete base sequence of mitochondrial DNA of several animals is known and many data are rapidly accumulating on the mitochondrial genomes of other systems. Here we discuss the results so far obtained that disclosed unexpected features of mitochondrial genetics. Furthermore, mitochondrial DNA has become established as a powerful tool for evolutionary studies in animals. Evidences are preented demonstrating that the evolution of mitochondrial DNA has proceeded in different ways in the various taxonomic groups. Data on heteroplasmic animals, which demonstrate the rapid evolution of mitochondrial DNA, are also presented. |
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Keywords: | mtDNA evolution heteroplasmy |
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