Results 11 to 20 of about 99,185 (278)

Evolution of Robust Developmental Neural Networks [PDF]

, 2004
We present the first evolved solutions to a computational task within the Neuronal Organism Evolution model (Norgev) of artificial neural network development. These networks display a remarkable robustness to external noise sources, and can regrow to functionality when severely damaged. In this framework, we evolved a doubling of network functionality (
Alan N. Hampton, Christoph Adami
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The Evolution of Variability and Robustness in Neural Development [PDF]

Trends in Neurosciences, 2018
As in all biological systems, neurons and their networks must balance precision with variability. Phenotypic precision and phenotypic variability can both occur with remarkable robustness, where robustness is defined as the ability to tolerate perturbation.
P. Robin Hiesinger, Bassem A. Hassan
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Evolution of robustness and cellular stochasticity of gene expression. [PDF]

PLoS 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
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Neutral Evolution of Robustness in Drosophila microRNA Precursors [PDF]

Molecular Biology and Evolution, 2011
Mutational robustness describes the extent to which a phenotype remains unchanged in the face of mutations. Theory predicts that the strength of direct selection for mutational robustness is at most the magnitude of the rate of deleterious mutation. As far as nucleic acid sequences are concerned, only long sequences in organisms with high deleterious ...
Nicholas C. Price, Reed A. Cartwright, Niv Sabath, Dan Graur, Ricardo B. R. Azevedo   +4 more
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The evolution and mutational robustness of chromatin accessibility in Drosophila

Genome Biology, 2023
Background The evolution of genomic regulatory regions plays a critical role in shaping the diversity of life. While this process is primarily sequence-dependent, the enormous complexity of biological systems complicates the understanding of the factors ...
Samuel Khodursky, Eric B. Zheng, Nicolas Svetec, Sylvia M. Durkin, Sigi Benjamin, Alice Gadau, Xia Wu, Li Zhao   +7 more
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Does evolution design robust food webs ? [PDF]

Proceedings of the Royal Society B: Biological Sciences, 2019
Theoretical works that use a dynamical approach to study the ability of ecological communities to resist perturbations are largely based on randomly generated ecosystem structures. In contrast, we propose here to asses the robustness of food webs drawn from ecological and evolutionary processes with the use of community evolution models.
Benjamin Girardot, Mathias Gauduchon, Frédéric Ménard, Jean‐Christophe Poggiale   +3 more
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The Synergistic Effects of Structural Evolution and Attack Strategies on Network Matching Robustness [PDF]

Entropy
Research on network robustness has long focused on changes in the structure connectivity of networks under attacks, effectively depicting structural integrity while ignoring the exploration of functional integrity.
Xu Na, Junying Cui, Chang Su, Shimin Cai, Linyuan Lü   +4 more
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Mutational robustness changes during long-term adaptation in laboratory budding yeast populations

eLife, 2022
As an adapting population traverses the fitness landscape, its local neighborhood (i.e., the collection of fitness effects of single-step mutations) can change shape because of interactions with mutations acquired during evolution.
Milo S Johnson, Michael M Desai
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Neutral evolution of mutational robustness [PDF]

Proceedings 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, Crutchfield, James P., Huynen, Martijn   +2 more
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Pangenome Evolution Reconciles Robustness and Instability of Rhizobial Symbiosis

mBio, 2022
Root nodulating rhizobia are nearly ubiquitous in soils and provide the critical service of nitrogen fixation to thousands of legume species, including staple crops.
Alexandra J. Weisberg, Arafat Rahman, Dakota Backus, Parinita Tyavanagimatt, Jeff H. Chang, Joel L. Sachs   +5 more
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