Degenerate Neutrality Creates Evolvable Fitness Landscapes

11 years 7 months ago
Degenerate Neutrality Creates Evolvable Fitness Landscapes
- Understanding how systems can be designed to be evolvable is fundamental to research in optimization, evolution, and complex systems science. Many researchers have thus recognized the importance of evolvability, i.e. the ability to find new variants of higher fitness, in the fields of biological evolution and evolutionary computation. Recent studies by Ciliberti et al (Proc. Nat. Acad. Sci., 2007) and Wagner (Proc. R. Soc. B., 2008) propose a potentially important link between the robustness and the evolvability of a system. In particular, it has been suggested that robustness may actually lead to the emergence of evolvability. Here we study two design principles, redundancy and degeneracy, for achieving robustness and we show that they have a dramatically different impact on the evolvability of the system. In particular, purely redundant systems are found to have very little evolvability while systems with degeneracy, i.e. distributed robustness, can be orders of magnitude more evol...
James M. Whitacre, Axel Bender
Added 17 Feb 2011
Updated 17 Feb 2011
Type Journal
Year 2009
Where GEM
Authors James M. Whitacre, Axel Bender
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