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Movie 1.

twi-MS2 (magenta) in dl-LEXY in the dark, with light at nc11-13, and with light at nc13. Related to Fig. 1. A ventral view is shown in all panels. Nascent transcription was only detected above a threshold for Movies S1-S3, and spots can only reliably be discerned before the embryo initiates gastrulation.

Optogenetic manipulation of nuclear Dorsal reveals temporal requirements and consequences for transcription

Virginia L. Pimmett, James McGehee, Antonio Trullo, Maria Douaihy, Ovidiu Radulescu, Angelike Stathopoulos, and Mounia Lagha

Development 2025. 152:None-None; doi: 10.1242/dev.204706