Research Article

A Short-Term Advantage for Syngamy in the Origin of Eukaryotic Sex: Effects of Cell Fusion on Cell Cycle Duration and Other Effects Related to the Duration of the Cell Cycle—Relationship between Cell Growth Curve and the Optimal Size of the Species, and Circadian Cell Cycle in Photosynthetic Unicellular Organisms

Figure 4

Size/time graphs showing duplication time for different growth curves. (a) Overexponential. (b) Exponential. (c) Subexponential. If the growth rate is subexponential (including linear growth), the smaller the cell, the shorter the duplication time and vice versa. Optimum size will be strongly influenced by these curves. Surprisingly, this fact has not been taken into account, despite its huge importance for single-cell organisms.
746825.fig.004a
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746825.fig.004b
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