Simulating the origins of life: The dual role of RNA replicases as an obstacle to evolution.

Despite years of study, it is still not clear how life emerged from inanimate matter and evolved into the complex forms that we observe today. One of the most recognized hypotheses for the origins of life, the RNA World hypothesis, assumes that life was sparked by prebiotic replicating RNA chains. I...

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Main Authors: Natalia Szostak, Jaroslaw Synak, Marcin Borowski, Szymon Wasik, Jacek Blazewicz
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2017-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC5507279?pdf=render
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author Natalia Szostak
Jaroslaw Synak
Marcin Borowski
Szymon Wasik
Jacek Blazewicz
author_facet Natalia Szostak
Jaroslaw Synak
Marcin Borowski
Szymon Wasik
Jacek Blazewicz
author_sort Natalia Szostak
collection DOAJ
description Despite years of study, it is still not clear how life emerged from inanimate matter and evolved into the complex forms that we observe today. One of the most recognized hypotheses for the origins of life, the RNA World hypothesis, assumes that life was sparked by prebiotic replicating RNA chains. In this paper, we address the problems caused by the interplay between hypothetical prebiotic RNA replicases and RNA parasitic species. We consider the coexistence of parasite RNAs and RNA replicases as well as the impact of parasites on the further evolution of replicases. For these purposes, we used multi-agent modeling techniques that allow for realistic assumptions regarding the movement and spatial interactions of modeled species. The general model used in this study is based on work by Takeuchi and Hogeweg. Our results confirm that the coexistence of parasite RNAs and replicases is possible in a spatially extended system, even if we take into consideration more realistic assumptions than Takeuchi and Hogeweg. However, we also showed that the presence of trade-off that takes into the account an RNA folding process could still pose a serious obstacle to the evolution of replication. We conclude that this might be a cause for one of the greatest transitions in life that took place early in evolution-the separation of the function between DNA templates and protein enzymes, with a central role for RNA species.
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spelling doaj.art-900c585d20bf47049f84c4d46c7be5352022-12-22T02:27:25ZengPublic Library of Science (PLoS)PLoS ONE1932-62032017-01-01127e018082710.1371/journal.pone.0180827Simulating the origins of life: The dual role of RNA replicases as an obstacle to evolution.Natalia SzostakJaroslaw SynakMarcin BorowskiSzymon WasikJacek BlazewiczDespite years of study, it is still not clear how life emerged from inanimate matter and evolved into the complex forms that we observe today. One of the most recognized hypotheses for the origins of life, the RNA World hypothesis, assumes that life was sparked by prebiotic replicating RNA chains. In this paper, we address the problems caused by the interplay between hypothetical prebiotic RNA replicases and RNA parasitic species. We consider the coexistence of parasite RNAs and RNA replicases as well as the impact of parasites on the further evolution of replicases. For these purposes, we used multi-agent modeling techniques that allow for realistic assumptions regarding the movement and spatial interactions of modeled species. The general model used in this study is based on work by Takeuchi and Hogeweg. Our results confirm that the coexistence of parasite RNAs and replicases is possible in a spatially extended system, even if we take into consideration more realistic assumptions than Takeuchi and Hogeweg. However, we also showed that the presence of trade-off that takes into the account an RNA folding process could still pose a serious obstacle to the evolution of replication. We conclude that this might be a cause for one of the greatest transitions in life that took place early in evolution-the separation of the function between DNA templates and protein enzymes, with a central role for RNA species.http://europepmc.org/articles/PMC5507279?pdf=render
spellingShingle Natalia Szostak
Jaroslaw Synak
Marcin Borowski
Szymon Wasik
Jacek Blazewicz
Simulating the origins of life: The dual role of RNA replicases as an obstacle to evolution.
PLoS ONE
title Simulating the origins of life: The dual role of RNA replicases as an obstacle to evolution.
title_full Simulating the origins of life: The dual role of RNA replicases as an obstacle to evolution.
title_fullStr Simulating the origins of life: The dual role of RNA replicases as an obstacle to evolution.
title_full_unstemmed Simulating the origins of life: The dual role of RNA replicases as an obstacle to evolution.
title_short Simulating the origins of life: The dual role of RNA replicases as an obstacle to evolution.
title_sort simulating the origins of life the dual role of rna replicases as an obstacle to evolution
url http://europepmc.org/articles/PMC5507279?pdf=render
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