Models for eukaryote origins that are, in principle, testable with genome data
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Models for eukaryote origins that are, in principle, testable with genome data
(A-D) Models that propose the origin of a nucleus-bearing but amitochondriate cell first, followed by the acquisition of mitochondria in a eukaryotic host. (E-G) Models that propose the origin of mitochondria in a prokaryotic host, followed by the acquisition of eukaryotic-specific features. The relevant microbial players in each model are labelled. Archaebacterial and eubacterial lipid membranes are indicated in red and blue, respectively.
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Mitochondria arose through a fateful endosymbiosis more than 1.45 billion years ago. Many mitochondria make ATP without the help of oxygen.
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