Fig. 3From: Evidence for a centrosome-attracting body like structure in germ-soma segregation during early development, in the urochordate Oikopleura dioicaUltrastructural identification of a CAB-like region in O. dioica. Representation of a 16-cell stage embryo at low magnification highlighting the pum1 mRNA rich region of the germ line precursor blastomere B5.2, the area enclosed by the rectangle (a). The circle encloses the CAB-like region, identified by a high density of rough ER and accumulation of mitochondria in the surrounding region (b). Higher magnification of the CAB-like region shows relatively high accumulation of rough ER (c). Mitochondria are labeled in green. ER is marked in redBack to article page