Spontaneous genetic clustering in populations of competing organisms
Spontaneous genetic clustering in populations of competing organisms
复制标题
竞争生物体种群中的自发遗传聚类
DOI：
10.1088/1478-3975/9/6/066002
复制
发表时间：
2012
期刊：
影响因子：
2
通讯作者：
A. Rossberg
中科院分区：
文献类型：
--
作者：
T. Rogers;A. McKane;A. Rossberg
我们介绍和分析了一种基于个体的进化模型，在该模型中，一群遗传多样性的生物相互竞争有限的资源。通过理论分析和随机模拟，我们发现该模型表现出一种模式形成不稳定性，这种不稳定性被人口噪声的影响大大放大，导致了基因型簇的自发形成。这一机制支持了随机性在物种的形成和连贯性中发挥核心作用的论点。
We introduce and analyse an individual-based evolutionary model, in which a population of genetically diverse organisms compete with each other for limited resources. Through theoretical analysis and stochastic simulations, we show that the model exhibits a pattern-forming instability which is highly amplified by the effects of demographic noise, leading to the spontaneous formation of genotypic clusters. This mechanism supports the thesis that stochasticity has a central role in the formation and coherence of species.