路径依赖的选择——统一自然选择与中性选择

王瑞武, 于云云, 朱其凯, 王超, 李敏岚, 韩嘉旭

Path-dependent selection—Integrating natural selection and neutral selection

Ruiwu Wang, Yunyun Yu, Qikai Zhu, Chao Wang, Minlan Li, Jiaxu Han

图2 不同选择压力下的路径演化图(改编自Wang et al, 2023), (a)、(b)、(c)分别对应着选择强度为0, 0.5和1的情形。当ω = 0时, 没有选择强度, 种群演化仅受随机漂变的影响, 结果相当于中性选择; 而当ω = 1时, 选择强度非常大, 结果相当于达尔文的自然选择。

Fig. 2 Path evolution diagrams under different selection pressures (adapted from Wang et al, 2023), where (a), (b) and (c) correspond to cases with selection intensity of 0, 0.5, and 1, respectively. When ω = 0, there is no selection intensity and the population evolution is only affected by random drift, resulting in the equivalent of neutral selection, while when ω = 1, the selection intensity is very high, resulting in the equivalent of Darwinian natural selection.