Number of significantly differentially expressed genes per MAG between time points. The boxplots summarize data from 96 MAGs at each transition. The boxes comprise the 2nd and 3rd quartiles with the horizontal line indicating the median. Whiskers maximally extend to 1.5 times the inter-quartile range or to the last value within that range. Note that most changes in transcription occur when transitioning between hydration phases as seen in ( a ).