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Figure 1 | EvoDevo

Figure 1

From: Genome-wide analysis of the sox family in the calcareous sponge Sycon ciliatum: multiple genes with unique expression patterns

Figure 1

Sycon ciliatum: morphology and embryonic development. (A) Environmental sample of multiple specimens of Sycon growing on stipe of the kelp Laminaria hyperborea. (B) Transverse section of Sycon ciliatum demonstrating radial symmetry. (C) Schematic representation of Sycon body plan. (D) Schematic representation of key stages in embryogenesis (after[17]): top; oocyte, early and late cleavage stage; bottom, pre-inversion stage, inversion and post-inversion. (E) Confocal image of an embryo during pre-inversion stage showing four cruciform cells (cc) among micromeres. Actin cytoskeleton is labeled green, DNA is blue. (F) Larvae. Cell types are abbreviated as follows: ac, accessory cells; cc, cruciform cells; ch, choanocytes; ma, macromeres; mi, micromeres; pin, pinacocytes.

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