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Single-cell absolute contact probability detection reveals chromosomes are organized by multiple low-frequency yet specific interactions

Open access
Cattoni, Diego I., Cardozo Gizzi, Andrés M., Georgieva, Mariya, Di Stefano, Marco, Valeri, Alessandro, Chamousset, Delphine, Houbron, Christophe, Déjardin, Stephanie, Fiche, Jean-Bernard, González, Inma, Chang, Jia-Ming, Sexton, Thomas, Marti-Renom, Marc A., Bantignies, Frédéric, Cavalli, Giacomo, Nollmann, Marcelo·2017·Nature Communications

Abstract

At the kilo- to megabase pair scales, eukaryotic genomes are partitioned into self-interacting modules or topologically associated domains (TADs) that associate to form nuclear compartments. Here, we combine high-content super-resolution microscopies with state-of-the-art DNA-labeling methods to reveal the variability in the multiscale organization of the Drosophila genome. We find that association frequencies within TADs and between TAD borders are below ~10%, independently of TAD size, epigenetic state, or cell type. Critically, despite this large heterogeneity, we are able to visualize nanometer-sized epigenetic domains at the single-cell level. In addition, absolute contact frequencies within and between TADs are to a large extent defined by genomic distance, higher-order chromosome architecture, and epigenetic identity. We propose that TADs and compartments are organized by multiple, small-frequency, yet specific interactions that are regulated by epigenetics and transcriptional state.

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Metadata

Authors
Cattoni, D. I., Cardozo Gizzi, A. M., Georgieva, M., Di Stefano, M., Valeri, A., Chamousset, D., Houbron, C., Déjardin, S., Fiche, J.-B., González, I., Chang, J.-M., Sexton, T., Marti-Renom, M. A., Bantignies, F., Cavalli, G., & Nollmann, M.
Venue
Nature Communications
Published
2017-11-24
Volume
8
Issue
1
Pages
1753-1753
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2768705468
Cited by
163
References
14
FWCI
6.50
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Single-cell absolute contact probability detection reveals chromosomes are organized by multiple low-frequency yet specific interactions. https://app.cochat.ai/papers/10.1038/s41467-017-01962-x
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Cattoni, D. I., Cardozo Gizzi, A. M., Georgieva, M., Di Stefano, M., Valeri, A., Chamousset, D., Houbron, C., Déjardin, S., Fiche, J.-B., González, I., Chang, J.-M., Sexton, T., Marti-Renom, M. A., Bantignies, F., Cavalli, G., & Nollmann, M. (2017). Single-cell absolute contact probability detection reveals chromosomes are organized by multiple low-frequency yet specific interactions. Nature Communications. https://doi.org/10.1038/s41467-017-01962-x

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.