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Fig. S1
Mitosis in the zebrafish intestine is rhythmic and under circadian control, but is abolished during starvation. Extended time course of cell division, using a pH3 antibody as a mitotic marker, for fish fed twice a day and entrained to a LD cycle then transferred into DD, as well as for starved fish (SF) entrained to a LD cycle. Gut samples were collected every 6h for the three conditions. In LD, cells divide rhythmically with a peak at ZT21; when the fish are free-running in DD, this rhythmicity is maintained. When the fish are starved, no cell division is observed.
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