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Some like it hot: A hypothesis regarding establishment of the proto-mitochondrial endosymbiont during eukaryogenesis

Dunn, Cory D. (2017) Some like it hot: A hypothesis regarding establishment of the proto-mitochondrial endosymbiont during eukaryogenesis. [Preprint]

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Abstract

Eukaryotic cells are generally characterized by a considerable increase in subcellular compartmentalization in comparison to prokaryotes. Eukaryotes can also form multicellular organisms consisting of highly specialized cell types. Most evidence suggests that the earliest eukaryotes consisted of mitochondria derived from an α-proteobacterial ancestor enclosed within an archaeon-derived host cell. However, what specific benefits the archaeal host and the proto-mitochondrial endosymbiont each obtained from this endosymbiotic relationship remains unclear. In this work, we argue that endosymbiont-generated heat may have initially permitted an archaeal host living at very high temperatures to colonize a cooler environment, and we describe how subsequent events could have prompted the increased apparent complexity of eukaryotic cells.


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Item Type: Preprint
Creators:
CreatorsEmailORCID
Dunn, Cory D.cory.dunn@helsinki.fi0000-0003-2393-5944
Keywords: endosymbiosis, eukaryogenesis, mitochondria, archaea, temperature
Subjects: Specific Sciences > Biology > Evolutionary Theory
Specific Sciences > Biology > Molecular Biology/Genetics
Specific Sciences > Biology > Systematics
Depositing User: Dr. Cory Dunn
Date Deposited: 27 Jul 2017 16:14
Last Modified: 27 Jul 2017 16:14
Item ID: 13261
Subjects: Specific Sciences > Biology > Evolutionary Theory
Specific Sciences > Biology > Molecular Biology/Genetics
Specific Sciences > Biology > Systematics
Date: 14 July 2017
URI: http://philsci-archive.pitt.edu/id/eprint/13261

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