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Fig. 4 | EvoDevo

Fig. 4

From: Reinvestigating the early embryogenesis in the flatworm Maritigrella crozieri highlights the unique spiral cleavage program found in polyclad flatworms

Fig. 4

Putative cell–cell interactions observed in the gastrulating polyclad flatworm M. crozieri. ai A descendant of cell 4d1 (red arrow) is traced and can be seen approaching and later departing from fourth quartet macromeres 4A-D before epiboly is completed. Time represents hours (h) of time-lapse imaging with an OpenSPIM. Scale bars are50 µm

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