Development of the Ethmoidal Structures of the Endocranium in .i.Discoglossus pictus./i. (Anura: Discoglossidae)

0348538 - GLÚ 2011 RIV US eng J - Journal Article
Královec, K. - Roček, Zbyněk - Žáková, P. - Mužáková, V.
Development of the Ethmoidal Structures of the Endocranium in Discoglossus pictus (Anura: Discoglossidae).
Journal of Morphology. Roč. 271, č. 9 (2010), s. 1078-1093. ISSN 0362-2525. E-ISSN 1097-4687
Institutional research plan: CEZ:AV0Z30130516
Keywords : Anura * Discoglossidae * Discoglossus * development * cranium
Subject RIV: EA - Cell Biology
Impact factor: 1.773, year: 2010

We use histological techniques and computer-aided three-dimensional reconstructions made from serial histological sections to describe the ontogeny of the ethmoidal endocranium of discoglossid frog Discoglossus pictus. We identify a pattern of development for the suprarostral cartilage that differs from previous findings and probably represents the ancestral anuran pattern. The nasal cartilages, including the inferior prenasal cartilage, are de novo adult structures. The only larva-derived structures of the adult nasal capsules are the posterior aspects of the solum nasi and septum nasi. We also identify patterns of development for the ethmoid plate and postnasal wall that occur during early in ontogenesis. These patterns are associated with development events during metamorphic climax. The pattern of timing of chondrification of the anterior nasal cartilages more closely coincides with that of the neobatrachian species than that recorded for the pelobatid frog Spea.
Permanent Link: http://hdl.handle.net/11104/0189055