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Fig. 6 | BMC Biology

Fig. 6

From: Ciliary photoreceptors in sea urchin larvae indicate pan-deuterostome cell type conservation

Fig. 6

Summary diagram showing sea urchin photoreceptors and phylogenetic distribution of photoreceptor-specific regulatory states. A Summary diagram of sea urchin larva showing the expression of regulatory genes in photoreceptors and expression of indicated PSED genes in the hydropore canal (HC). Pigment cells (PC) are associated with photoreceptors and distributed throughout the aboral ectoderm. B Diagram showing the expression of a common set of regulatory genes in ciliary photoreceptors in animals representing specific positions within the phylogenetic tree. DA, deuterostome ancestor; CA, chordate ancestor; VA, vertebrate ancestor

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