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The Eukaryotic Cell Originated in the Integration and Redistribution of Hyperstructures from Communities of Prokaryotic Cells Based on Molecular Complementarity

1
AMMIS Laboratory, EA 3829, University of Rouen, Mont Saint Aignan, 76821 France
2
Department of Physiology, 2174 BPS, Michigan State University, East Lansing, MI 48824, USA
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Author to whom correspondence should be addressed.
Int. J. Mol. Sci. 2009, 10(6), 2611-2632; https://doi.org/10.3390/ijms10062611
Received: 21 April 2009 / Revised: 25 May 2009 / Accepted: 3 June 2009 / Published: 4 June 2009
(This article belongs to the Special Issue Origin of Life)
In the “ecosystems-first” approach to the origins of life, networks of non-covalent assemblies of molecules (composomes), rather than individual protocells, evolved under the constraints of molecular complementarity. Composomes evolved into the hyperstructures of modern bacteria. We extend the ecosystems-first approach to explain the origin of eukaryotic cells through the integration of mixed populations of bacteria. We suggest that mutualism and symbiosis resulted in cellular mergers entailing the loss of redundant hyperstructures, the uncoupling of transcription and translation, and the emergence of introns and multiple chromosomes. Molecular complementarity also facilitated integration of bacterial hyperstructures to perform cytoskeletal and movement functions. View Full-Text
Keywords: composome; intron; motility; molecular complementarity; hyperstructure; origin of life; evolution; cytoskeleton; mutualism; symbiosis; ecology; ecosystem composome; intron; motility; molecular complementarity; hyperstructure; origin of life; evolution; cytoskeleton; mutualism; symbiosis; ecology; ecosystem
MDPI and ACS Style

Norris, V.; Root-Bernstein, R. The Eukaryotic Cell Originated in the Integration and Redistribution of Hyperstructures from Communities of Prokaryotic Cells Based on Molecular Complementarity. Int. J. Mol. Sci. 2009, 10, 2611-2632.

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