PUBLICATION
Understanding morphology: a comparative study on the lower jaw in two teleost species
- Authors
- Milligan, B., Harris, N., Franz-Odendaal, T. A.
- ID
- ZDB-PUB-160310-20
- Date
- 2012
- Source
- Zeitschrift fur angewandte Ichthyologie = Journal of applied ichthyology 28(3): 346-352 (Journal)
- Registered Authors
- Franz-Odendaal, Tamara, Harris, Natalie
- Keywords
- none
- MeSH Terms
- none
- PubMed
- none Full text @ Zeitschrift Angew. Ichthyol. (J. Appl. Ichtyol.)
Citation
Milligan, B., Harris, N., Franz-Odendaal, T. A. (2012) Understanding morphology: a comparative study on the lower jaw in two teleost species. Zeitschrift fur angewandte Ichthyologie = Journal of applied ichthyology. 28(3):346-352.
Abstract
Zebrafish are currently used as a model organism for studying disorders affecting bone development and regeneration, yet we do not understand many aspects of teleost skeletal biology. This study focuses on the changes in shape of Meckel’s cartilage and its subsequent ossification in two teleosts with different feeding strategies and jaw morphologies; zebrafish (Cypriniformes) which lack mandibular teeth and the sighted Mexican tetra (Characiformes), which has oral teeth. We find that some aspects of jaw development, such as the retraction of Meckel’s cartilage are delayed in the tetra despite its larger embryonic and adult size, while other aspects, such as the differentiation of mature chondrocytes is accelerated. The mode of retraction of Meckel’s cartilage also appears to be different in tetra compared to in zebrafish. Understanding the cellular and developmental mechanisms underlying jaw shape in species with different feeding strategies is important to our understanding of vertebrate morphology in general, and could provides novel insights into teleost skeletal biology.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping