Genome-wide identification of Drosophila dorso-ventral enhancers by differential histone acetylation analysis
Open accessAbstract
BACKGROUND: Drosophila dorso-ventral (DV) patterning is one of the best-understood regulatory networks to date, and illustrates the fundamental role of enhancers in controlling patterning, cell fate specification, and morphogenesis during development. Histone acetylation such as H3K27ac is an excellent marker for active enhancers, but it is challenging to obtain precise locations for enhancers as the highest levels of this modification flank the enhancer regions. How to best identify tissue-specific enhancers in a developmental system de novo with a minimal set of data is still unclear. RESULTS: Using DV patterning as a test system, we develop a simple and effective method to identify tissue-specific enhancers de novo. We sample a broad set of candidate enhancer regions using data on CREB-binding protein co-factor binding or ATAC-seq chromatin accessibility, and then identify those regions with significant differences in histone acetylation between tissues. This method identifies hundreds of novel DV enhancers and outperforms ChIP-seq data of relevant transcription factors when benchmarked with mRNA expression data and transgenic reporter assays. These DV enhancers allow the de novo discovery of the relevant transcription factor motifs involved in DV patterning and contain additional motifs that are evolutionarily conserved and for which the corresponding transcription factors are expressed in a DV-biased fashion. Finally, we identify novel target genes of the regulatory network, implicating morphogenesis genes as early targets of DV patterning. CONCLUSIONS: Taken together, our approach has expanded our knowledge of the DV patterning network even further and is a general method to identify enhancers in any developmental system, including mammalian development.
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Enhancers can reside in a poised state exhibiting both H3K4me1 and H3K27me3 that is associated with Polycomb repressive complexes.
“In addition to the ‘primed’ and active states, enhancers can also reside in a ‘poised’ state exhibiting both H3K4me1 and H3 lysine 27 trimethylation (H3K27me3) that is associated with Polycomb repressive complexes [131, 135, 136, 138].”
From Transcriptional enhancers and their communication with gene promoters (2021) · cites this paper as [138]
The Background discusses H3K27ac as a marker of active enhancers, not the claimed combination of H3K4me1 and H3K27me3 at poised enhancers. Searches for those marks, poised enhancers, and Polycomb found only related reference titles, not a passage in this paper stating the claim. The indexed passages have no page numbers. (LLM, conf=0.73)
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Cardozo Gizzi, A. M., Cattoni, D. I., Fiche, J.-B., Espinola, S. M., Gurgo, J., Messina, O., Houbron, C., Ogiyama, Y., Papadopoulos, G. L., Cavalli, G., et al. (2019) · Molecular Cell · doi:10.1016/j.molcel.2019.01.011 · Cited by 258 · see citing works
Transcriptional enhancers and their communication with gene promoters
Ray-Jones, H., & Spivakov, M. (2021) · Cellular and Molecular Life Sciences · doi:10.1007/s00018-021-03903-w · Cited by 81 · see citing works
- Authors
- Koenecke, N., Johnston, J., Gaertner, B., Natarajan, M., & Zeitlinger, J.
- Affiliations
- Stowers Institute for Medical Research (US)
- Corresponding author
- Zeitlinger, Julia
- Venue
- Genome Biology
- Published
- 2016-09-27
- Volume
- 17
- Issue
- 1
- Pages
- 196-196
- ISSN
- 1465-6906 (ISSN-L)
- 1474-760X
- PMC
- PMC5037609
- OpenAlex
- W2526877120
- Cited by
- 65
- References
- 9
- Citations by year
- 2026: 2 · 2025: 8 · 2024: 6 · 2023: 12 · 2022: 8 · 2021: 9 · 2020: 1 · 2019: 6 · 2018: 9 · 2017: 4
- FWCI
- 3.29
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- cc-by
- Locations
- Genome biology (publishedVersion, cc-by)
- Europe PMC (PubMed Central) (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- Funders
- Stowers Institute for Medical Research
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
- Keywords
- enhancer identification, dorsoventral patterning, Drosophila, histone acetylation, H3K27ac, tissue-specific enhancers, transcription factor binding motifs, CREB-binding protein, chromatin accessibility, developmental regulatory networks, enhancer target genes
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