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The zebrafish homeobox gene hox[zf-114]: primary structure, expression pattern and evolutionary aspects
A Molven1, I Hordvik, P R Njølstad
1Laboratory of Biotechnology, University of Bergen, Norway.
The International Journal of Developmental Biology
|June 1, 1992
Summary
A novel zebrafish homeobox gene, hox[zf-114], is crucial for embryonic development. It plays a role in neural tube patterning and pectoral fin formation, similar to Drosophila Antennapedia genes.
Area of Science:
- Developmental Biology
- Genetics
- Evolutionary Biology
Background:
- Vertebrate homeobox genes are essential for embryonic development.
- Many known homeobox genes are related to Drosophila Antennapedia (Antp).
Purpose of the Study:
- To describe a novel Antp-like homeobox gene, hox[zf-114], from zebrafish.
- To investigate the evolutionary origin and expression pattern of hox[zf-114].
Main Methods:
- Sequence analysis of the hox[zf-114] homeodomain.
- In situ hybridization to determine spatial expression patterns.
Main Results:
- hox[zf-114] is an Antp-like homeobox gene in zebrafish.
- Its evolutionary origin is unclear; it is not directly homologous to known mammalian homeobox genes.
- hox[zf-114] is expressed in the posterior hindbrain, spinal cord, and pectoral fin development regions.
Conclusions:
- hox[zf-114] exhibits a typical expression pattern for vertebrate Antp-like homeobox genes.
- The gene likely functions in anteroposterior patterning of the neural tube and pectoral fin development.