Timelapse of dorsal side during gastrulation shows migration of hypoblast and underlying yolk syncytial layer (YSL) nuclei (larger bright spots). The prechordal plate can be seen as a more clumped mas...

Timelapse of dorsal yolk syncytial layer (YSL) nuclei and blastoderm morphogenesis from sphere stage (late blastula) to 1 somite stage. Top panel shows Nomarski movie of blastoderm morphogenesis inclu...

Patterned nuclei movements in the dorsal yolk syncytial layer( YSL) after mid-gastrulation. Anterior is up. Timelapse includes Nomarski images (left panel), fluorescence (right panel) and overlay (mid...

Short timelapse movie of prechordal plate, hypoblast, and yolk syncytial layer (YSL) nuclear movements during 80-90% epiboly. The prechordal plate and notochord can be seen as a tighter clump of cells...

Nomarski/confocal projection shows animal pole of view of head anlage and underlying movements of yolk syncytial layer (YSL) nuclei (bright spots). Nuclei extend and flow through animal pole region to...