What is the difference between models of error thresholds and Muller's ratchet?

@article{Wagner1993WhatIT,
  title={What is the difference between models of error thresholds and Muller's ratchet?},
  author={G. Wagner and P. Kr{\'a}ll},
  journal={Journal of Mathematical Biology},
  year={1993},
  volume={32},
  pages={33-44}
}
Two independently derived theories predict upper limits to the mutation rate beyond which evolution cannot be controlled by natural selection. One is the theory of Muller's ratchet, explaining the low phylogenetic age of parthenogenetic clones, the other one is the theory of error thresholds, predicting the maximal information content of selfreplicating molecules in prebiotic evolution. Both theories are based on similiar mathematical models but reach qualitatively different conclusions. Muller… Expand
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