ZFIN Image: Aigler et al., 2014, Fig. S3

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Figure Caption

Fig. S3

Tooth rudiments are absent from the upper pharynx of wild-type zebrafish. Ectodysplasin A receptor (edar) expression is limited to tooth germs (arrows) of the lower pharynx in wild-type (A and C) but is induced in upper pharyngeal epithelium (arrowheads) and upper pharyngeal tooth germs (arrowheads) of the ef1α:eda transgenic (B and D). Expression of the transcription factor pitx2 is found in lower pharyngeal tooth germs (arrows) and upper pharyngeal epithelium (arrowheads) at 60 hpf in the wild-type (E) and ef1α:eda transgenic (F). Expression of this gene becomes restricted to lower pharyngeal tooth germs (arrows) at 72 hpf in the wild-type (G), but is also expressed in upper pharyngeal tooth germs (arrowheads) in the ef1α:eda transgenic (H). Abbreviations: hpf, hours postfertilization; n, notochord; y, yolk. (Scale bars, 50 μm.)

Acknowledgments

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