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Scale development in zebrafish (Danio rerio)
- J. Sire, F. Allizard, O. Babiar, Jacqueline Bourguignon, A. Quilhac
- BiologyJournal of anatomy
- 1 June 1997
Because of their late formation during ontogeny and of their regular pattern of development, scales in zebrafish represent a good model for further investigations on the general mechanisms of epithelial‐mesenchymal interactions during dermal skeleton development, and in particular for the study of the gene expression patterns.
Cellular expression of eve1 suggests its requirement for the differentiation of the ameloblasts and for the initiation and morphogenesis of the first tooth in the zebrafish (Danio rerio)
- P. Laurenti, Christelle Thaëron, F. Allizard, A. Huysseune, J. Sire
- BiologyDevelopmental dynamics : an official publication…
- 1 August 2004
Evidence is presented that eve1, the closest paralog of evx1 in the actinopterygian lineage, is expressed during pharyngeal tooth formation in the zebrafish, Danio rerio, and is correlated with two key steps of tooth development: initiation and morphogenesis of the first tooth, and ameloblast differentiation of all developing teeth.
Morphological variations in a tooth family through ontogeny in Pleurodeles waltl (Lissamphibia, Caudata)
P. waltl, a salamander easy to rear in the laboratory, is chosen as a model species to establish the morphological foundations necessary for future molecular approaches aiming to understand not only molecular processes involved in tooth development and replacement, but also their changes, notably during metamorphosis.
Evidence for participation of the epidermis in the deposition of superficial layer of scales in zebrafish (Danio rerio): A SEM and TEM study
- J. Sire, A. Quilhac, Jacqueline Bourguignon, F. Allizard
- Environmental ScienceJournal of morphology
- 1 February 1997
The continuous epidermal covering, the absence of dermal elements, as well as the fine structure of the matrix and its type of mineralization, strongly suggest that epidersmal products, possibly enamel‐like proteins, are deposited at the scale surface and contribute to the thickening of the upper layer in zebrafish scales.
Tooth development in a scincid lizard, Chalcides viridanus (Squamata), with particular attention to enamel formation
- S. Delgado, T. Davit-Béal, F. Allizard, J. Sire
- Medicine, Materials ScienceCell and Tissue Research
The results lead to conclude that tooth morphogenesis and differentiation in this lizard are similar to those described for mammalian teeth, however, Tomes’ processes and enamel prisms are absent.
Comparison of teeth and dermal denticles (odontodes) in the teleost Denticeps clupeoides (Clupeomorpha)
This close structural agreement between teeth and odontodes in Denticeps suggests that 1) competent cells from the same (ecto)mesenchymal population might be involved and 2) the genetic control of the developmental processes could be identical.
A fourth teleost lineage possessing extra-oral teeth: the genus atherion (teleostei; atheriniformes).
The existence of denticles located outside the oral cavity in the atheriniform species Atherion elymus, now the fourth teleost lineage found to develop such denticles on the head, suggests that the denticles have a longer functional history than teeth.
Enameloid/enamel transition through successive tooth replacements in Pleurodeles waltl (Lissamphibia, Caudata)
The data suggest the absence of an enameloid/enamel transition and, instead, the occurrence of anEnameloids/dentin transition, which seems to result from a progressive slowing down of odontoblast activity.
Rostrum of a toothed whale: ultrastructural study of a very dense bone.
Tooth development in vitro in two teleost fish, the cichlid Hemichromis bimaculatus and the cyprinid Danio rerio
Organotypic culture in serum-free conditions provides the means of studying epithelial-mesenchymal interactions during tooth development in teleost fish and of analysing the genetic control of either mandibular or pharyngeal tooth development and replacement in these polyphyodont species.