Marine Biodiversity and Ecosystem Functioning
EU Network of Excellence

 
Main Menu

· Home
· Contacts
· Data Systems
· Documents
· FAQ
· Links
· MarBEF Open Archive
· Network Description
· Outreach
· Photo Gallery
· Quality Assurance
· Register of Resources
· Research Projects
· Rules and Guidelines
· Training
· Wiki
· Worldconference

 

Register of Resources (RoR)

 People  |  Datasets  |  Literature  |  Institutes  |  Projects 

[ report an error in this record ]basket (0): add | show Print this page

Development of the pharyngeal dentition in post-embryonic and juvenile zebrafish (Teleostei, Cyprinidae: Danio rerio)
Van der Heyden, C.; Huysseune, A. (1998). Development of the pharyngeal dentition in post-embryonic and juvenile zebrafish (Teleostei, Cyprinidae: Danio rerio). Biol. Jb. Dodonaea 65: 181-182
In: Biologisch Jaarboek (Dodonaea). Koninklijk Natuurwetenschappelijk Genootschap Dodonaea: Gent. ISSN 0366-0818
Also appears in:
Beeckman, T.; Caemelbeke, K. (Ed.) (1998). Populations: Natural and manipulated, symposium organized by the Royal Society of Natural Sciences Dodonaea, University of Gent, 29 October 1997. Biologisch Jaarboek (Dodonaea), 65. Koninklijk Natuurwetenschappelijk Genootschap Dodonaea: Gent. 257 pp., more

Available in  Authors 

Keywords
    Conferences
    Cyprinidae Rafinesque, 1815 [WoRMS]; Danio rerio (Hamilton, 1822) [WoRMS]; Teleostei [WoRMS]
    Fresh water

Authors  Top 
  • Van der Heyden, C.
  • Huysseune, A.

Abstract
    The zebrafish has become an increasingly popular model for studies on the genetics, molecular biology and developmental biology of vertebrates. As all carps, zebrafish lack an oral dentition hut have instead a well developed pharyngeal dentition. We examined the tooth development and the generation of the tooth pattern in several specimens going from 2 to 20 days post fertilisation (dPF), using a wide scope of techniques such as LM, TEM, in toto staining and 3D-reconstructions. During early post-embryonic development, zebrafish teeth are initiated according to a predictable, bilaterally symmetrical pattern, from shortly before hatching (48 hours) onwards. Due to the first one-sided shedding at 14 d PP, the first asymmetry appears. For juveniles up to 20 d PP the tooth pattern shows more and more differences between and within animals (bilateral asymmetry). In general, the older juvenile dentition consists of three tooth rows one of which (the ventral, major row) has five teeth, while the two dorsal, minor rows have less teeth each. This pattern is also persistent in adults, but the number of teeth is less than in juveniles. These results confirm earlier literature reports that larval and juvenile cyprinids have consider- ably more teeth than the adults, apparently due to the prolonged retention of functional teeth that were to be replaced. Tooth morphogenesis, cytodifferentiation, attachment and eruption in this model organism show some different, particular features. The dental lamina can originate directly from the pharyngeal epithelium or from the dental lamina of another tooth, which has implications for the concept of tooth families. These results provide the basic data needed to investigate the role of various factors during odontogenesis.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors 


If any information here appears to be incorrect, please contact us
Back to Register of Resources
 
Quick links

MarBEF WIKI

Erasmus Mundus Master of Science in Marine Biodiversity and Conservation (EMBC)
Outreach

Science
Responsive Mode Programme (RMP) - Marie Nordstrom, copyright Aspden Rebecca

WoRMS
part of WoRMS logo

ERMS 2.0
Epinephelus marginatus Picture: JG Harmelin

EurOBIS

Geographic System

Datasets

 


Web site hosted and maintained by Flanders Marine Institute (VLIZ) - Contact data-at-marbef.org