Cytoplasmic movement in an Mybx1 embryo from 20 mpf to 40 mpf. Rhodamine dye was injected at 10 mpf and embryos were imaged from 20 mpf to 40 mpf. Due to the opaqueness of Mybx1 embryos, the rhodamine fluorescence is relatively weak and scattered. The cytoplasmic movement is stagnant and the transportation of rhodamine is highly inefficient. 5 embryos were observed and this movie shows the representative result. A, animal pole; V, vegetal pole. Scale bar: 200 μm.