Results 11 to 20 of about 578,574 (323)

Maladaptation and the paradox of robustness in evolution. [PDF]

open access: yesPLoS ONE, 2007
Organisms use a variety of mechanisms to protect themselves against perturbations. For example, repair mechanisms fix damage, feedback loops keep homeostatic systems at their setpoints, and biochemical filters distinguish signal from noise.
Steven A Frank
doaj   +6 more sources

Evolution of robustness in digital organisms [PDF]

open access: yesArtificial Life, 2004
We study the evolution of robustness in digital organisms adapting to a high mutation rate. As genomes adjust to the harsh mutational environment, the mean effect of single Imitations decreases, up until the point where a sizable fraction (up to 30% in ...
Adami, Christoph, Edlund, Jeffrey A.
core   +5 more sources

Evolution of drift robustness in small populations [PDF]

open access: yesNature Communications, 2017
Genetic drift can reduce fitness in small populations by counteracting selection against deleterious mutations. Here, LaBar and Adami demonstrate through a mathematical model and simulations that small populations tend to evolve to drift-robust fitness ...
Thomas LaBar, Christoph Adami
doaj   +3 more sources

The Effect of Recombination on the Neutral Evolution of Genetic Robustness [PDF]

open access: yesMathematical Biosciences, 2008
Conventional population genetics considers the evolution of a limited number of genotypes corresponding to phenotypes with different fitness. As model phenotypes, in particular RNA secondary structure, have become computationally tractable, however, it ...
Albert   +17 more
core   +3 more sources

Robust Contract Evolution in a TypeSafe MicroServices Architecture [PDF]

open access: greenThe Art, Science, and Engineering of Programming, 2020
Microservices architectures allow for short deployment cycles and immediate effects but offer no safety mechanisms when service contracts need to be changed. Maintaining the soundness of microservice architectures is an error-prone task that is only accessible to the most disciplined development teams.
João Costa Seco   +4 more
openalex   +5 more sources

Neutral evolution of mutational robustness [PDF]

open access: yesProceedings of the National Academy of Sciences, 1999
We introduce and analyze a general model of a population evolving over a network of selectively neutral genotypes. We show that the population’s limit distribution on the neutral network is solely determined by the network topology and given by the principal eigenvector of the network’s adjacency matrix.
van Nimwegen, Erik   +2 more
openaire   +6 more sources

Revisiting robustness and evolvability: evolution in weighted genotype spaces. [PDF]

open access: yesPLoS ONE, 2014
Robustness and evolvability are highly intertwined properties of biological systems. The relationship between these properties determines how biological systems are able to withstand mutations and show variation in response to them. Computational studies
Raghavendran Partha, Karthik Raman
doaj   +1 more source

Evolution of robustness and cellular stochasticity of gene expression. [PDF]

open access: yesPLoS Biology, 2013
Gene expression varies widely in cells with the same genotype and environment. Predicting the patterns of stochastic cellular fluctuations remains an unsolved challenge.
Steven A Frank
doaj   +1 more source

Does mutational robustness inhibit extinction by lethal mutagenesis in viral populations? [PDF]

open access: yesPLoS Computational Biology, 2010
Lethal mutagenesis is a promising new antiviral therapy that kills a virus by raising its mutation rate. One potential shortcoming of lethal mutagenesis is that viruses may resist the treatment by evolving genomes with increased robustness to mutations ...
Eamon B O'Dea   +2 more
doaj   +1 more source

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