6, 7; Figs. S3,4). Slides prepared for the spinning-disc time-lapse captured were sealed with VALAP to prevent animals from drying out. Captured images were processed using NIS Elements Advanced research, version 4.40 (Nikon). Additional deconvolution processing was performed on all time-lapse images within the Nikon Elements software utilizing the 3-D Richardson-Lucy algorithm over 35 iterations.
To determine relative levels of nuclear localization of MPK-1, animals were imaged in 10minute intervals 24 hours post synchronization. Following deconvolution (above), fluorescent intensity measurements for both MPK-1::mKate2 and mNeonGreen::HIS-72 were recorded for each P4.p-P8.p nucleus using NIS Elements Advanced research, version 4.40 (Nikon) software. CTNF (corrected total nuclear fluorescence) was calculated by subtracting background fluorescence. To account for variations, we then divided the MPK-1::mKate2 CTNF intensity by their corresponding mNeonGreen::HIS-72 intensity. P-values were calculated using ANOVA.