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Science 29 February 1980:
Vol. 207. no. 4434, pp. 993 - 995
DOI: 10.1126/science.7352302
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Articles

Science, Vol 207, Issue 4434, 993-995
Copyright © 1980 by American Association for the Advancement of Science

articles

Tooth induction in chick epithelium: expression of quiescent genes for enamel synthesis

EJ Kollar and C Fisher

Intraocular grafts of chick epithelium combined with mouse molar mesenchyme produced a variety of dental structures including perfectly formed crowns with differentiated ameloblasts depositing enamel matrix. The results suggest that the loss of teeth in Aves did not result from a loss of genetic coding for enamel synthesis in the oral epithelium but from an alteration in the tissue interactions requisite for odontogenesis.


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