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arXiv 0707.1407q-bio.MN
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遗传网络的可靠性是可进化的

Reliability of genetic networks is evolvable

Stefan Braunewell, Stefan Bornholdt

摘要:

尽管潜在的分子网络具有随机性,但对活细胞功能的控制具有显着的可靠性-这是一种可能被生物进化优化的特性。在这里,我们要问的是,随机动态网络产生可靠动态的属性在多大程度上是一个可进化的特征。使用进化算法的基础上确定性的选择标准的可靠性的动态吸引子,我们发展动态网络的噪声离散阈值节点。我们发现,从任何随机网络开始,吸引子景观的可靠性往往可以通过对网络结构的微小改变来实现。此外,进化的网络可靠的动态,同时保持其功能的研究和高成功率被发现。

英文摘要:

Control of the living cell functions with remarkable reliability despite the stochastic nature of the underlying molecular networks -- a property presumably optimized by biological evolution. We here ask to what extent the property of a stochastic dynamical network to produce reliable dynamics is an evolvable trait. Using an evolutionary algorithm based on a deterministic selection criterion for the reliability of dynamical attractors, we evolve dynamical networks of noisy discrete threshold nodes. We find that, starting from any random network, reliability of the attractor landscape can often be achieved with only few small changes to the network structure. Further, the evolvability of networks towards reliable dynamics while retaining their function is investigated and a high success rate is found.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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