Membrane fusion and fission during eukaryogenesis
Héctor Romero1, Pablo S Aguilar2, Martin Graña3
1Laboratorio de Genómica Evolutiva, Facultad de Ciencias/CURE, Universidad de la República, Uruguay; Centro Interdisciplinario de Ciencia de Datos y Aprendizaje Automático (CICADA), Espacio Interdisciplinario, Universidad de la República, Uruguay.
Current Opinion in Cell Biology
|January 14, 2024
Summary
Eukaryotic cells evolved from prokaryotes through symbiotic interactions and cell fusion, leading to complex structures and reproduction. This study explores key evolutionary stages, including membrane remodeling and the origins of sexual reproduction.
Area of Science:
- Evolutionary biology
- Cell biology
- Origin of life
Background:
- Eukaryotic cells evolved from prokaryotic ancestors through complex evolutionary processes.
- Eukaryogenesis involved significant cellular structural changes and the development of internal membrane compartments.
- Cell-cell fusion is a critical aspect of the eukaryotic life cycle.
Purpose of the Study:
- To discuss selective forces and evolutionary mechanisms driving eukaryogenesis.
- To highlight the roles of membrane remodeling proteins in eukaryotic evolution.
- To examine critical stages in eukaryote evolution, including symbiosis and the origin of sexual reproduction.
Main Methods:
- Review of current models of eukaryogenesis.
- Analysis of cellular structural changes during evolution.
- Discussion of protein functions in membrane remodeling.
Main Results:
- Eukaryotes originated from prokaryotic cell interactions.
- Internal membrane compartments and cell-cell fusion are hallmarks of eukaryotic cells.
- Membrane remodeling proteins played crucial roles in symbiosis and the emergence of sexual reproduction.
Conclusions:
- Eukaryogenesis is a complex process involving symbiosis and cell fusion.
- Cell-cell fusion may have led to polyploid ancestors, linking to sexual reproduction.
- Understanding membrane dynamics is key to deciphering eukaryotic origins.
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