Crossref journal-article
Cold Spring Harbor Laboratory
Genes & Development (246)
Abstract

zerknüllt (zen) is one of approximately 10 zygotically active genes that control the differentiation of the dorsal-ventral (D/V) pattern during early embryogenesis in Drosophila. Past genetic analyses suggest that maternal factors repress the expression of zen in ventral regions, thereby restricting zen products to dorsal and dorsal-lateral regions of precellular embryos. Subsequent interactions with other zygotic D/V regulatory genes refine the zen pattern, restricting expression to the dorsal-most ectoderm. Here we describe the use of zen promoter fusions and P-element transformation to identify cis elements that are responsible for the complex spatial pattern of zen expression. The zen promoter shows a two-tier organization: Distal sequences mediate its initial response to maternal factors, whereas proximal sequences are responsible for the refinement of the pattern in older embryos. The distal regulatory element has the property of a silencer (or anti-enhancer) element and can act over a distance to repress ventral expression of a heterologous promoter. Also, we discuss evidence that proximal promoter sequences interact with factors that may be modulated by a cell-cell communication pathway.

Bibliography

Doyle, H. J., Kraut, R., & Levine, M. (1989). Spatial regulation of zerknüllt: a dorsal-ventral patterning gene in Drosophila. Genes & Development, 3(10), 1518–1533.

Authors 3
  1. H J Doyle (first)
  2. R Kraut (additional)
  3. M Levine (additional)
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Dates
Type When
Created 18 years, 2 months ago (June 5, 2007, 5:15 p.m.)
Deposited 3 years, 9 months ago (Nov. 13, 2021, 11:03 p.m.)
Indexed 3 weeks, 4 days ago (July 31, 2025, 11:47 p.m.)
Issued 35 years, 10 months ago (Oct. 1, 1989)
Published 35 years, 10 months ago (Oct. 1, 1989)
Published Online 35 years, 10 months ago (Oct. 1, 1989)
Published Print 35 years, 10 months ago (Oct. 1, 1989)
Funders 0

None

@article{Doyle_1989, title={Spatial regulation of zerknüllt: a dorsal-ventral patterning gene in Drosophila.}, volume={3}, ISSN={1549-5477}, url={http://dx.doi.org/10.1101/gad.3.10.1518}, DOI={10.1101/gad.3.10.1518}, number={10}, journal={Genes & Development}, publisher={Cold Spring Harbor Laboratory}, author={Doyle, H J and Kraut, R and Levine, M}, year={1989}, month=oct, pages={1518–1533} }