Self-Organized Criticality in the Autowave Model of Speciationстатья
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Дата последнего поиска статьи во внешних источниках: 13 января 2021 г.
Аннотация:Self-organized criticality is considered as a threshold stage of autowave self-organization inthe evolutionary process. The proposed model defines self-organized criticality as a set of thresholdparameters of the autowave system of equations. Consequently, it is associated with the formation of aqualitatively new biological structure (a new species). Experimental data on the mutation rate for groupsof mice and unicellular eukaryotes that are published in the scientific literature are used to construct anautowave model of speciation at the population level. This model approach demonstrates compliancewith the available experimental data in the process of fixing recessive mutations: there are three stagesof fixation of mutations (accumulation of phenotypic differences, the threshold level of the mutation rate,and elimination of mutation carriers) and the maximum mutation rate when the mismatch repair systemand the DNA polymerase δ proofreading activity are disabled. The percolation model of mutations witha delayed mutation rate is used to analyze the dynamics of the number of mutants in generations. Theresults demonstrate exact correspondence between the use of autowave model and percolation modelof mutation fixation for calculating and analyzing the dynamics of the mutation rate and the number ofmutation carriers.