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Kin Selection in the RNA World [PDF]

open access: yesLife, 2017
Various steps in the RNA world required cooperation. Why did life’s first inhabitants, from polymerases to synthetases, cooperate? We develop kin selection models of the RNA world to answer these questions.
Samuel R. Levin, Stuart A. West
doaj   +4 more sources

RNA silencing sheds light on the RNA world. [PDF]

open access: yesPLoS Biology, 2006
RNA silencing — also known as RNA interference — is an intriguing phenomenon in which short, double-stranded RNA “triggers” can prevent the expression of specific genes. First discovered in plants, RNA interference is now recognized as a widespread, if not ubiquitous, phenomenon, and it is causing great excitement as an experimental technique for ...
Rachel Jones
doaj   +4 more sources

RNA World with Inhibitors

open access: yesEntropy
During the evolution of the RNA World, compartments, which were fragments of space surrounded by a primitive lipid membrane, had to have emerged. These led eventually to the formation of modern cellular membranes.
Jaroslaw Synak   +3 more
doaj   +4 more sources

Chaperna: linking the ancient RNA and protein worlds

open access: yesRNA Biology, 2021
As a mental framework for the transition of self-replicating biological forms, the RNA world concept stipulates a dual function of RNAs as genetic substance and catalyst.
Ahyun Son, Scott Horowitz, Baik L. Seong
doaj   +1 more source

A Polyaddition Model for the Prebiotic Polymerization of RNA and RNA-Like Polymers

open access: yesLife, 2020
Implicit in the RNA world hypothesis is that prebiotic RNA synthesis, despite occurring in an environment without biochemical catalysts, produced the long RNA polymers which are essential to the formation of life.
Alex Spaeth, Mason Hargrave
doaj   +1 more source

The Origins of the RNA World [PDF]

open access: yesCold Spring Harbor Perspectives in Biology, 2010
The general notion of an "RNA World" is that, in the early development of life on the Earth, genetic continuity was assured by the replication of RNA and genetically encoded proteins were not involved as catalysts. There is now strong evidence indicating that an RNA World did indeed exist before DNA- and protein-based life. However, arguments regarding
Michael P, Robertson, Gerald F, Joyce
openaire   +2 more sources

Order and Complexity in the RNA World

open access: yesLife, 2023
The basic idea of the RNA world as an early step towards life relies on a molecular evolution process based on self-replicating RNA strands. It is probably the oldest and most convincing model for efficient prebiotic evolution.
Christian Mayer
doaj   +1 more source

The small RNA world [PDF]

open access: yesJournal of Cell Science, 2003
Small RNAs have burst on the scene as ubiquitous, versatile repressors of gene expression in plants, animals and many fungi. These tiny RNAs (∼21-26 nt), which induce silencing through homologous sequence interactions, come in many guises: short interfering (si) RNAs ([Elbashir et al., 2001][1]),
E Jean, Finnegan, Marjori A, Matzke
openaire   +2 more sources

From RNA World to SARS-CoV-2: The Edited Story of RNA Viral Evolution

open access: yesCells, 2021
The current SARS-CoV-2 pandemic underscores the importance of understanding the evolution of RNA genomes. While RNA is subject to the formation of similar lesions as DNA, the evolutionary and physiological impacts RNA lesions have on viral genomes are ...
Zachary W. Kockler, Dmitry A. Gordenin
doaj   +1 more source

An RNA World

open access: yesAnnual Review of Plant Biology, 2023
My research career started with an ambition to work out how genes are regulated in plants. I tried out various experimental systems—artichoke tissue culture in Edinburgh; soybean root nodules in Montreal; soybean hypocotyls in Athens, Georgia; and cereal aleurones in Cambridge—but eventually I discovered plant viruses.
openaire   +2 more sources

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