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Figure 5 | EvoDevo

Figure 5

From: Molecular conservation of metazoan gut formation: evidence from expression of endomesoderm genes in Capitella teleta (Annelida)

Figure 5

Comparative gene expression within digestive organ systems of the Metazoa. Gene orthologs of five endomesoderm transcription factors (Otx, Blimp1, Brachyury, FoxA, Gata4/5/6) are designated by colored ovals; additional transcription factors (Nkx2.1, Goosecoid) are designated by black and white ovals, respectively. Each oval represents gene expression by in situ hybridization. For each taxon, gene-specific expression was confirmed in one or more subregions along the digestive organ system [see Additional file9: Table S1]. ‘oral (ectoderm)’ is the future site of mouth formation, or a definitive stomodeum; ‘foregut’ is internal to the mouth opening or described as the foregut, pharynx or esophagus; ‘midgut (endoderm)’ represents endoderm precursor cells in an embryo or gastrula, or is described as the midgut, endoderm or intestine; ‘hindgut’ is the posterior terminus of the gut system, it may include the anus and is described as hindgut, proctodeum or anus. All gene expression patterns were described during a period of development that included gut formation. Where gene-specific expression in a particular gut subregion(s) was detected, it has been indicated in the table. Where no gene expression data are listed for a gene, or gut subregion, then either no expression was detected in that subregion, or expression data do not exist for that particular gene in that taxon. Expression of Nk2.1 in C. teleta is for the Ct-nkx2.1a ortholog. A supplementary table and list of references for all expression data in Figure 5 are available in Additional file9: Table S1.

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