To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 4 Time lapse of mnx1:memGFP-expressing early beta cells, following induction by Notch inhibition from 4-5 dpf, then treatment with Wortmannin for 3 hours prior to imaging at 7 dpf. (Corresponds to Fig. 5C, bottom) In vivo imaging of emerging endocrine cells reveals a requirement for PI3K-regulated motility in pancreatic islet morphogenesis Julia Freudenblum, José A. Iglesias, Martin Hermann, Tanja Walsen, Armin Wilfinger, Dirk Meyer, and Robin A. Kimmel Development 2018. 145:None-None; doi: 10.1242/dev.158477 Download Original Video