PUBLICATION

The Vertebrate Tooth Row: Is It Initiated by a Single Organizing Tooth?

Authors
Sadier, A., Jackman, W.R., Laudet, V., Gibert, Y.
ID
ZDB-PUB-200430-11
Date
2020
Source
BioEssays : news and reviews in molecular, cellular and developmental biology   42(6): e1900229 (Other)
Registered Authors
Gibert, Yann, Jackman, William (Bill), Laudet, Vincent
Keywords
FGF evolution, dental row, initiator, mammals, tooth, zebrafish
MeSH Terms
  • Animals
  • Biological Evolution
  • Dentition*
  • Mammals
  • Mice
  • Morphogenesis
  • Tooth*
  • Zebrafish/genetics
PubMed
32347985 Full text @ Bioessays
Abstract
Teeth are one of the most fascinating innovations of vertebrates. Their diversity of shape, size, location, and number in vertebrates is astonishing. If the molecular mechanisms underlying the morphogenesis of individual teeth are now relatively well understood, thanks to the detailed experimental work that has been performed in model organisms (mainly mouse and zebrafish), the mechanisms that control the organization of the dentition are still a mystery. Mammals display simplified dentitions when compared to other vertebrates with only a single tooth row positioned in the anterior part of the mouth, whereas other vertebrates exhibit tooth rows in many locations. As proposed 60 years ago, tooth rows can be formed sequentially from an initiator tooth. Recent results in zebrafish have now largely confirmed this hypothesis. Here this observation is generalized upon and it is suggested that in most vertebrates tooth rows could form sequentially from a single initiator tooth.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping