dorsal/arxiv
View SchemaPreservation of information in a prebiotic package model
| Authors | Daniel A. M. M. Silvestre, Jose F. Fontanari |
|---|---|
| Categories | |
| ArXiv ID | q-bio/0612047 |
| URL | https://arxiv.org/abs/q-bio/0612047 |
| DOI | 10.1103/PhysRevE.75.051909 |
Abstract
The coexistence between different informational molecules has been the preferred mode to circumvent the limitation posed by imperfect replication on the amount of information stored by each of these molecules. Here we reexamine a classic package model in which distinct information carriers or templates are forced to coexist within vesicles, which in turn can proliferate freely through binary division. The combined dynamics of vesicles and templates is described by a multitype branching process which allows us to write equations for the average number of the different types of vesicles as well as for their extinction probabilities. The threshold phenomenon associated to the extinction of the vesicle population is studied quantitatively using finite-size scaling techniques. We conclude that the resultant coexistence is too frail in the presence of parasites and so confinement of templates in vesicles without an explicit mechanism of cooperation does not resolve the information crisis of prebiotic evolution.
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"abstract": "The coexistence between different informational molecules has been the\npreferred mode to circumvent the limitation posed by imperfect replication on\nthe amount of information stored by each of these molecules. Here we reexamine\na classic package model in which distinct information carriers or templates are\nforced to coexist within vesicles, which in turn can proliferate freely through\nbinary division. The combined dynamics of vesicles and templates is described\nby a multitype branching process which allows us to write equations for the\naverage number of the different types of vesicles as well as for their\nextinction probabilities. The threshold phenomenon associated to the extinction\nof the vesicle population is studied quantitatively using finite-size scaling\ntechniques. We conclude that the resultant coexistence is too frail in the\npresence of parasites and so confinement of templates in vesicles without an\nexplicit mechanism of cooperation does not resolve the information crisis of\nprebiotic evolution.",
"arxiv_id": "q-bio/0612047",
"authors": [
"Daniel A. M. M. Silvestre",
"Jose F. Fontanari"
],
"categories": [
"q-bio.PE"
],
"doi": "10.1103/PhysRevE.75.051909",
"title": "Preservation of information in a prebiotic package model",
"url": "https://arxiv.org/abs/q-bio/0612047"
},
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