English

Strategies for the evolution of sex

Soft Condensed Matter 2009-11-07 v1 Statistical Mechanics Biological Physics Populations and Evolution

Abstract

We find that the hypothesis made by Jan, Stauffer and Moseley [Theory in Biosc., 119, 166 (2000)] for the evolution of sex, namely a strategy devised to escape extinction due to too many deleterious mutations, is sufficient but not necessary for the successful evolution of a steady state population of sexual individuals within a finite population. Simply allowing for a finite probability for conversion to sex in each generation also gives rise to a stable sexual population, in the presence of an upper limit on the number of deleterious mutations per individual. For large values of this probability, we find a phase transition to an intermittent, multi-stable regime. On the other hand, in the limit of extremely slow drive, another transition takes place to a different steady state distribution, with fewer deleterious mutations within the asexual population.

Keywords

Cite

@article{arxiv.cond-mat/0101426,
  title  = {Strategies for the evolution of sex},
  author = {Erkan Tuzel and Volkan Sevim and Ayse Erzan},
  journal= {arXiv preprint arXiv:cond-mat/0101426},
  year   = {2009}
}

Comments

RevTeX, 11 pages, multicolumn, including 12 figures