Figure 1.

Mapping between cell behavior and underlying basis of size control. (A) Division-birth correlation for WT (FC15, n = 256) based on measurement of cell length. The size of circles is proportional to cell radius. Binned data, with mean value ± standard error, are also shown (dark circles), together with best-fit line with indicated slope. (B) Theoretical assumption of a one-to-one mapping between division-birth slope and size control, in which slope = 0 implies sizer control and slope = +1 implies adder control. No intermediate values for the slope are expected. (C) Slope values between 0 and +1 could be interpreted as a mix between sizer and adder control (or an imprecise sizer or imprecise adder).