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English: Evolutionary pathway from coacervates in the prebiotic soup to encapsulated progenotes and virus-like lineages. Initially, intrinsically disordered peptides and RNAs formed coacervates, giving rise to FUCA—the First Universal Common Ancestor—where the earliest encoding systems emerged. FUCA diversified into metabolically active RNP-based progenotes, some of which developed primitive translation systems (Translator Populations 1 and 2). Some progenote populations acquired different molecular binding capacities, while others led to the emergence of encapsulated progenotes through the evolution of self-assembling capsid peptides. These encapsulated systems gave rise to virus-like populations through progressive capsid complexification. This model highlights a stepwise transition from unstructured chemical systems to structured biological compartments via RNP encapsulation, linking the RNP-world and Virus-First theories.
Date 7 July 2025
Source https://www.mdpi.com/2036-7481/16/7/154
Author Francisco Prosdocimi

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Evolutionary emergence of virus-like particles from RNP-based progenotes

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