Crossref journal-article
The Company of Biologists
Development (237)
Abstract

ABSTRACT We describe the isolation of the zebrafish MyoD gene and its expression in wild-type embryos and in two mutants with altered somite development, no tail (ntl) and spadetail (spt). In the wild-type embryo, MyoD expression first occurs in an early phase, extending from mid-gastrula to just prior to somite formation, in which cells directly adjacent to the axial mesoderm express the gene. In subsequent phases, during the anterior-to-posterior wave of somite formation and maturation, expression occurs within particular regions of each somite. In spt embryos, which lack normal paraxial mesoderm due to incorrect cell migration, early MyoD expression is not observed and transcripts are instead first detected in small groups of trunk cells that will develop into aberrant myotomal-like structures. In ntl embryos, which lack notochords and tails, the early phase of MyoD expression is also absent. However, the later phase of expression within the developing somites appears to occur at the normal time in the ntl mutants, indicating that the presomitogenesis and somitogenesis phases of MyoD expression can be uncoupled. In addition, we demonstrate that the entire paraxial mesoderm of wild-type embryos has the potential to express MyoD when Sonic hedgehog is expressed ubiquitously in the embryo, and that this potential is lost in some of the cells of the paraxial mesoderm lineage in no tail and spadetail embryos. We also show that MyoD expression precedes myogenin expression and follows or is coincident with expression of snail1 in some regions that express this gene.

Bibliography

Weinberg, E. S., Allende, M. L., Kelly, C. S., Abdelhamid, A., Murakami, T., Andermann, P., Doerre, O. G., Grunwald, D. J., & Riggleman, B. (1996). Developmental regulation of zebrafish MyoD in wild-type, no tail and spadetail embryos. Development, 122(1), 271–280.

Authors 9 University of Pennsylvania
  1. Eric S. Weinberg (first) University of Pennsylvania
  2. Miguel L. Allende (additional) University of Pennsylvania
  3. Christina S. Kelly (additional) University of Pennsylvania
  4. Aboulmagd Abdelhamid (additional) University of Pennsylvania
  5. Tohru Murakami (additional) University of Pennsylvania
  6. Peter Andermann (additional) University of Pennsylvania
  7. O. Geoffrey Doerre (additional) University of Pennsylvania
  8. David J. Grunwald (additional)
  9. Bob Riggleman (additional)
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Dates
Type When
Created 4 years, 4 months ago (April 25, 2021, 10:29 p.m.)
Deposited 6 months, 2 weeks ago (Feb. 13, 2025, 5:38 p.m.)
Indexed 3 weeks, 3 days ago (Aug. 7, 2025, 4:48 p.m.)
Issued 29 years, 8 months ago (Jan. 1, 1996)
Published 29 years, 8 months ago (Jan. 1, 1996)
Published Online 29 years, 8 months ago (Jan. 1, 1996)
Published Print 29 years, 8 months ago (Jan. 1, 1996)
Funders 0

None

@article{Weinberg_1996, title={Developmental regulation of zebrafish MyoD in wild-type, no tail and spadetail embryos}, volume={122}, ISSN={1477-9129}, url={http://dx.doi.org/10.1242/dev.122.1.271}, DOI={10.1242/dev.122.1.271}, number={1}, journal={Development}, publisher={The Company of Biologists}, author={Weinberg, Eric S. and Allende, Miguel L. and Kelly, Christina S. and Abdelhamid, Aboulmagd and Murakami, Tohru and Andermann, Peter and Doerre, O. Geoffrey and Grunwald, David J. and Riggleman, Bob}, year={1996}, month=jan, pages={271–280} }