PUBLICATION
The dwarf neon rainbowfish Melanotaenia praecox, a small spiny-rayed fish with potential as a new Acanthomorpha model fish: I. Fin ray ontogeny and postembryonic
- Authors
- Miyamoto, K., Abe, G., Tamura, K.
- ID
- ZDB-PUB-240208-4
- Date
- 2024
- Source
- Developmental Dynamics : an official publication of the American Association of Anatomists 253(9): 829-845 (Journal)
- Registered Authors
- Abe, Gembu
- Keywords
- Atheriniformes, Melanotaeniidae, procurrent ray, soft ray, staging system
- MeSH Terms
-
- Models, Animal
- Animals
- Animal Fins*/anatomy & histology
- Animal Fins*/embryology
- Animal Fins*/growth & development
- Body Size
- Smegmamorpha/anatomy & histology
- Smegmamorpha/embryology
- Smegmamorpha/growth & development
- PubMed
- 38323724 Full text @ Dev. Dyn.
Citation
Miyamoto, K., Abe, G., Tamura, K. (2024) The dwarf neon rainbowfish Melanotaenia praecox, a small spiny-rayed fish with potential as a new Acanthomorpha model fish: I. Fin ray ontogeny and postembryonic. Developmental Dynamics : an official publication of the American Association of Anatomists. 253(9):829-845.
Abstract
Background Fish fins with highly variable color patterns and morphologies have many functions. In Actinopterygii, the free parts of fins are supported by "soft rays" and "spiny rays." Spiny rays have various functions and are extremely modified in some species, but they are lacking in popular model fish such as zebrafish and medaka. Additionally, some model fish with spiny rays are difficult to maintain in ordinary laboratory systems.
Results Characteristics of the small, spiny-rayed rainbowfish Melanotaenia praecox render it useful as an experimental model species. Neither fish age nor body size correlate well with fin development during postembryonic development in this species. A four-stage developmental classification is proposed that is based on fin ray development.
Conclusions Melanotaenia praecox is an ideal species to rear in laboratories for developmental studies. Our classification allows for postembryonic staging of this species independent of individual age and body size. Development of each fin ray may be synchronized with dorsal fin development. We discuss the differences in mechanisms regulating soft, spiny, and procurrent ray development.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping