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Updated: Jun 2, 2026
10:35
Generation of Genome-wide Chromatin Conformation Capture Libraries from Tightly Staged Early Drosophila Embryos
Published on: October 3, 2018
Dynamic reprogramming of chromatin accessibility during Drosophila embryo development.
Sean Thomas1, Xiao-Yong Li, Peter J Sabo
1Department of Genome Sciences, University of Washington, Foege S310A, 1705 NE Pacific Street, Box 355065, Seattle, WA 98195, USA.
Genome Biology
|May 17, 2011
Summary
Chromatin dynamics during early development reveal thousands of regulatory elements controlling gene expression. This study maps the dynamic chromatin landscape, offering insights into developmental processes.
Area of Science:
- Developmental Biology
- Genomics
- Epigenetics
Background:
- Complex organism development involves progressive cellular fate restriction.
- Understanding chromatin dynamics and regulatory elements is crucial for developmental biology.
Purpose of the Study:
- To map regulatory elements and chromatin landscape during early Drosophila embryogenesis.
- To identify regulatory elements directing developmental processes.
Main Methods:
- In vivo DNaseI sensitivity assays were used.
- Mapping was performed during the first 11 hours of embryonic development.
Main Results:
- Thousands of conserved, developmentally dynamic DNaseI hypersensitive sites were identified, linked to gene expression patterns and chromatin plasticity.
- A balance between up- and down-regulated sites was observed.
- Core promoter elements were found to direct temporally regulated chromatin remodeling.
- Localized accessibility was noted in protein-coding regions, some developmentally regulated.
Conclusions:
- The study provides a global view of the dynamic chromatin landscape in early animal development.
- Novel insights into the organization of developmentally regulated chromatin features were gained.
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