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Fig. 8 | Zoological Letters

Fig. 8

From: A model for germ cell development in a fully segmented worm

Fig. 8

Pn-vasa expression patterns in larva and juvenile. A Larva at 72 hpf showing the presence of four somatic cell clusters in segments I and II (asterisks) and a small Pn-vasa positive cell at the most posterior end (box frame, inset). B In the 3-segmented worm at 4 dpf, Pn-vasa positive cells (arrows) found closer to the somatic cell clusters (asterisks) at the anlage of the parapodia. C At 5 dpf, Pn-vasa is expressed in the parapodia in segments I and II and Pn-vasa also expressed in two cells in the pygidium (C’). D In the 4-segmented worm, four Pn-vasa positive cells are found in the pygidium (D’) and two small Pn-vasa positive cells are also found on both sides of the newly generated segment (D arrows; inset). No signal found in the future peristomium (Pe). Note: the right side of the parapodial segments in figure B is behind the worm’s body. In figure D (inset), the cell is taken using higher magnification (400×) and at different focal plane

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