Global Chromatin Domain Organization of the Drosophila Genome
Author Information
Author(s): de Wit Elzo, Braunschweig Ulrich, Greil Frauke, Bussemaker Harmen J., van Steensel Bas
Primary Institution: Netherlands Cancer Institute
Hypothesis
Are multi-gene chromatin domains common in the Drosophila genome?
Conclusion
At least 50% of all fly genes are organized into chromatin domains, which often consist of dozens of genes and are functionally coherent.
Supporting Evidence
- At least 50% of all genes in Drosophila are packaged together into chromatin domains.
- Genes in these domains are often coregulated during development.
- Fewer chromosomal rearrangements occur inside chromatin domains than outside.
Takeaway
Genes in fruit flies are often grouped together in special structures that help them work together, and this happens more than we thought.
Methodology
The study used genome-scale binding maps of chromatin proteins and a novel statistical segmentation algorithm to identify multi-gene chromatin domains.
Limitations
The BRICK segmentation algorithm was limited to a maximum of 100 genes, potentially underestimating the coverage of chromatin domains.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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