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Development of oral and pharyngeal teeth in the medaka (Oryzias latipes): comparison of morphology and expression of eve1 gene by Mélanie Debiais-Thibaud; Véronique Borday-Birraux; Isabelle Germon; Frank Bourrat; Cushla Jane Metcalfe; Didier Casane; Patrick Laurenti is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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## Abstract Gnathostome teeth are one of the most promising models for developmental evolutionary studies, they are the most abundant organ in the fossil record and an excellent example of organogenesis. Teeth have a complex morphology and are restricted to the mouth in mammals, whereas actinopterygian teeth have a simple morphology and are found in several locations, notably on pharyngeal bones. Morphological and developmental similarities support the hypothesis that oral and pharyngeal teeth are serially homologous. Gene expression data from the mouse and some teleosts have shown that the gene families involved in pharyngeal odontogenesis are also involved in oral tooth formation, with the notable exception of the __evx__ gene family. Here, we present a complete description of early odontogenesis in the medaka (__Oryzias latipes__), which has both oral and pharyngeal dentition. We show that oral and pharyngeal teeth share deep developmental similarities. In the medaka, like in the zebrafish, __eve1__ is the only __evx__ gene expressed during odontogenesis. In each forming tooth, regardless of its location, __eve1__ transcription is activated in the placode, then becomes restricte

Who reads Development of oral and pharyngeal teeth in the medaka (Oryzias latipes): comparison of morphology and expression of eve1 gene?

Author

Mélanie Debiais-Thibaud; Véronique Borday-Birraux; Isabelle Germon; Frank Bourrat; Cushla Jane Metcalfe; Didier Casane; Patrick Laurenti

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 1552-5007)

Published

2007

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)