Endosymbionts and mitochondrial origins |
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Authors: | Carl R. Woese |
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Affiliation: | (1) Department of Genetics and Development, University of Illinois, 515 Morrill Hall, 61801 Urbana, IL, USA |
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Abstract: | Summary The possibility is put forth that the mitochondrion did not originate from an endosymbiosis, 1–2 billion years ago, involving an aerobic bacterium. Rather, it arose by endosymbiosis in a much early, anaerobic period, and was initially a photosynthetic organelle, analogous to the modern chloroplast. This suggestion arises from a reconsideration of the nature of endosymbiosis. It ex-plains the remarkable diversity in mitochondrial information storage and processing systems. |
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Keywords: | Evolution Endosymbiosis Mitochondrion Photosynthetic |
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