To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Supplementary Movie 2 Time-lapse movie (images acquired every 10 min) of individual embryo injected with mRNAs encoding mCherry-HIFα and Histone-GFP. Asymmetric distribution of hypoxia-inducible factor α regulates dorsoventral axis establishment in the early sea urchin embryo Wei-Lun Chang, Yi-Cheng Chang, Kuan-Ting Lin, Han-Ru Li, Chih-Yu Pai, Jen-Hao Chen, and Yi-Hsien Su Development 2017. 144:2940-2950; doi: 10.1242/dev.145052 Download Original Video