Understanding the Evolutionary Fate of Finite Populations: The Dynamics of Mutational Effects (original) (raw)
Figure 2
Changes in Mean Population Fitness
Dotted lines indicate the fitness of ancestral clones: the high-fitness clone (black circles), lower fitness clones (bright red triangles and dark red diamonds), and the evolved highest fitness ancestor (green squares); this ancestor was derived from the population having the highest fitness after 90 transfers (population 100c). Each point indicates the average fitness of an evolved population, with error bars indicating one standard error. Some populations are slightly displaced on the _x_-axis for clarity. The population bottleneck sizes were three, ten, 30, 100, and 250. Five lineages were propagated at bottleneck sizes three and ten, and three lineages were propagated for all other bottleneck sizes. The color and shape of each point indicates the ancestral clone from which that population was derived. The fitness of the high-fitness ancestor was set equal to zero on a log10 scale, and all other fitness values are relative.