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Updated: Jun 26, 2026
10:35
Generation of Genome-wide Chromatin Conformation Capture Libraries from Tightly Staged Early Drosophila Embryos
Published on: October 3, 2018
How the Dorsal gradient works: insights from postgenome technologies
Joung-Woo Hong1, David A Hendrix, Dmitri Papatsenko
1Division of Genetics, Genomics, and Development, Department of Molecular and Cell Biology, Center for Integrative Genomics, University of California, Berkeley, CA 94720, USA.
Summary
A maternal transcription factor gradient, Dorsal, patterns the early Drosophila embryo. Different regulatory codes interpret this gradient to generate complex gene expression patterns along the dorsal-ventral axis.
Area of Science:
- Developmental biology
- Genetics
- Molecular biology
Background:
- Gradients of signaling molecules and transcription factors are crucial for developmental processes.
- These gradients pattern embryos, establish cell types, and define body axes.
Purpose of the Study:
- To explain how the Dorsal gradient creates gene expression patterns in the early Drosophila embryo.
- To identify Dorsal target genes and their regulatory DNA elements.
Main Methods:
- Analysis of gene expression patterns.
- Identification of transcription factor binding sites.
- Characterization of regulatory DNA elements.
Main Results:
- The Dorsal gradient controls complex gene expression across the dorsal-ventral axis.
- Approximately 60-70 Dorsal target genes were identified.
- Around 35 regulatory DNA elements associated with these genes were characterized.
Conclusions:
- At least six distinct regulatory codes interpret the Dorsal gradient.
- These codes drive diverse dorsal-ventral expression profiles in the developing embryo.
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