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Gene/Clone	Species	Stage	Anatomy Item	Experimenter
msx1	xenopus		ganglion

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Experiment details for msx1

Schlosser G and Ahrens K (2004) Assay

Molecular anatomy of placode development in Xenopus laevis.

Gene	Clone	Species	Stages	Anatomy
msx1.L		laevis	NF stage 32 to NF stage 33 and 34	profundus ganglion , trigeminal ganglion

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Fig. 11. Placodal gene expression patterns in late tail bud Xenopus embryos (stages 32–34) in lateral views (anterior is to the left). As in Fig. 9, color-coded arrows and arrowheads are used for the identification of comparable regions of gene expression. Expression in the lens is indicated by L. Colors are explained in the schematic drawing, depicting the distribution of placodes in a stage 33/34 embryo (modified after Schlosser and Northcutt, 2000; see Fig. 14 for detailed explanation). By stage 33/34, the profundal placode has disappeared, the trigeminal placode is shrinking rapidly, the lens placode and otic placode have completely invaginated to form the lens and the otic vesicle, respectively, and the lateral line primordia have begun to extend from the lateral line placodes (Schlosser and Northcutt, 2000). Again, orange and brown double arrows indicate expression of the respective genes in a region encompassing facial epibranchial placode and anteroventral lateral line placode. White asterisks indicate gene expression in the pharyngeal pouches. Green and yellow asterisks indicate gene expression in the trigeminal and profundal ganglia (which are fused proximately), respectively. For detailed description, see text. Abbreviations: bam, branchial arch mesenchyme; L, lens; Ot, otic vesicle; vba, ventral branchial arch region (all three germ layers). For additional abbreviations, see Fig. 1.