PUBLICATION
Isolation, expression and regulation of a zebrafish paraxis homologue
- Authors
- Shanmugalingam, S. and Wilson, S.W.
- ID
- ZDB-PUB-990106-18
- Date
- 1998
- Source
- Mechanisms of Development 78: 85-89 (Journal)
- Registered Authors
- Shanmugalingam, Shantha, Wilson, Steve
- Keywords
- somite; spadetail; cyclops; notail; one-eyed-pinhead
- MeSH Terms
-
- Amino Acid Sequence
- Humans
- Nuclear Proteins
- Sequence Homology, Amino Acid
- Mesoderm/metabolism
- PubMed
- 9858695 Full text @ Mech. Dev.
Abstract
The formation of somites involves the subdivision of segmented presomitic mesoderm into segmentally arranged somite blocks. In mice and chicks, the basic-helix-loop-helix (bHLH) gene, paraxis, is involved in this process. Here, we report the isolation of a zebrafish homologue of paraxis, par1. par1 is expressed in presomitic paraxial mesoderm from late gastrula stages, and expression is maintained in ventrolateral cells after somite formation. In spt- embryos, par1 expression is both delayed and severely reduced whereas in flh- embryos, ectopic transcripts are detected in axial mesoderm. Spatial regulation of par1 expression within the somites is affected in several mutants with defects in axial midline tissues.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping