To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 3 Hes7 expression in a fused iPSM colony. Bright field images (BF), the liciferase activity of Hes7 reporter (Luc), and Mesogenin1 reporter expression (mC) were monitored. ES cell-derived presomitic mesoderm-like tissues for analysis of synchronized oscillations in the segmentation clock Marina Matsumiya, Takehito Tomita, Kumiko Yoshioka-Kobayashi, Akihiro Isomura, and Ryoichiro Kageyama Development 2018. 145:None-None; doi: 10.1242/dev.156836 Download Original Video