Fitness Landscapes and Evolution

  title={Fitness Landscapes and Evolution},
  author={Luca Peliti},
  journal={arXiv: Condensed Matter},
  • L. Peliti
  • Published 2 May 1995
  • Physics, Biology
  • arXiv: Condensed Matter
The concept of fitness is introduced, and a simple derivation of the Fundamental Theorem of Natural Selection (which states that the average fitness of a population increases if its variance is nonzero) is given. After a short discussion of the adaptative walk model, a short review is given of the quasispecies approach to molecular evolution and to the error threshold. The relevance of flat fitness landscapes to molecular evolution is stressed. Finally a few examples which involve wider… 

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