To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 1. AQP1-overexpressing cells derived from aortic roof are found in circulation. Video rate imaging of vitelline arteries in mRFP-CAAX, AQP1-mRFP, AQP1(R196H)-mRFP-overexpressing embryos at E4. Triple-speed replay. Scale bars: 200 μm. Aquaporin regulates cell rounding through vacuole formation during endothelial-to-hematopoietic transition Yuki Sato, Mugiho Shigematsu, Maria Shibata-Kanno, Sho Maejima, Chie Tamura, and Hirotaka Sakamoto Development 2023. 150:None-None; doi: 10.1242/dev.201275 Download Original Video