Open Access
Nature Communications, volume 12, issue 1, publication number 41
Order and stochasticity in the folding of individual Drosophila genomes
Ulianov Sergey V
1, 2
,
Zakharova Vlada V.
1, 2, 3
,
Galitsyna Aleksandra A
4
,
Kos Pavel I
5
,
Polovnikov Kirill E
4, 6
,
Flyamer Ilya M
7
,
Mikhaleva Elena A
8
,
Germini Diego
3
,
Logacheva Mariya D
4
,
Gavrilov Alexey A
2, 9
,
Gorsky Alexander S.
10, 11
,
Nechaev Sergey K
12, 13
,
Gelfand Mikhail S.
4, 10
,
Vassetzky Yegor S.
3, 14
,
Chertovich Alexander V
5, 15
,
Shevelyov Yuri Y
8
,
Разин С. В.
1, 2
3
UMR9018, CNRS, Université Paris-Sud Paris-Saclay, Institut Gustave Roussy, Villejuif, France
|
6
8
13
Interdisciplinary Scientific Center Poncelet (CNRS UMI 2615), Moscow, Russia
|
Publication type: Journal Article
Publication date: 2021-01-04
Journal:
Nature Communications
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 16.6
ISSN: 20411723
PubMed ID:
33397980
General Chemistry
General Biochemistry, Genetics and Molecular Biology
General Physics and Astronomy
Abstract
Mammalian and Drosophila genomes are partitioned into topologically associating domains (TADs). Although this partitioning has been reported to be functionally relevant, it is unclear whether TADs represent true physical units located at the same genomic positions in each cell nucleus or emerge as an average of numerous alternative chromatin folding patterns in a cell population. Here, we use a single-nucleus Hi-C technique to construct high-resolution Hi-C maps in individual Drosophila genomes. These maps demonstrate chromatin compartmentalization at the megabase scale and partitioning of the genome into non-hierarchical TADs at the scale of 100 kb, which closely resembles the TAD profile in the bulk in situ Hi-C data. Over 40% of TAD boundaries are conserved between individual nuclei and possess a high level of active epigenetic marks. Polymer simulations demonstrate that chromatin folding is best described by the random walk model within TADs and is most suitably approximated by a crumpled globule build of Gaussian blobs at longer distances. We observe prominent cell-to-cell variability in the long-range contacts between either active genome loci or between Polycomb-bound regions, suggesting an important contribution of stochastic processes to the formation of the Drosophila 3D genome. Genomes are partitioned into topologically associating domains (TADs). Here the authors present single-nucleus Hi-C maps in Drosophila at 10 kb resolution, demonstrating the presence of chromatin compartments in individual nuclei, and partitioning of the genome into non-hierarchical TADs at the scale of 100 kb, which resembles population TAD profiles.
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Citations by publishers
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1 publication, 2.22%
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Ulianov S. V. et al. Order and stochasticity in the folding of individual Drosophila genomes // Nature Communications. 2021. Vol. 12. No. 1. 41
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Ulianov S. V., Zakharova V. V., Galitsyna A. A., Kos P. I., Polovnikov K. E., Flyamer I. M., Mikhaleva E. A., Khrameeva E., Germini D., Logacheva M. D., Gavrilov A. A., Gorsky A. S., Nechaev S. K., Gelfand M. S., Vassetzky Y. S., Chertovich A. V., Shevelyov Y. Y., Разин С. В. Order and stochasticity in the folding of individual Drosophila genomes // Nature Communications. 2021. Vol. 12. No. 1. 41
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TY - JOUR
DO - 10.1038/s41467-020-20292-z
UR - https://doi.org/10.1038%2Fs41467-020-20292-z
TI - Order and stochasticity in the folding of individual Drosophila genomes
T2 - Nature Communications
AU - Ulianov, Sergey V
AU - Zakharova, Vlada V.
AU - Galitsyna, Aleksandra A
AU - Kos, Pavel I
AU - Polovnikov, Kirill E
AU - Flyamer, Ilya M
AU - Mikhaleva, Elena A
AU - Khrameeva, Ekaterina E.
AU - Germini, Diego
AU - Logacheva, Mariya D
AU - Gavrilov, Alexey A
AU - Gorsky, Alexander S.
AU - Nechaev, Sergey K
AU - Gelfand, Mikhail S.
AU - Vassetzky, Yegor S.
AU - Chertovich, Alexander V
AU - Shevelyov, Yuri Y
AU - Разин, С. В.
PY - 2021
DA - 2021/01/04 00:00:00
PB - Springer Nature
IS - 1
VL - 12
PMID - 33397980
SN - 2041-1723
ER -
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@article{2021_Ulianov,
author = {Sergey V Ulianov and Vlada V. Zakharova and Aleksandra A Galitsyna and Pavel I Kos and Kirill E Polovnikov and Ilya M Flyamer and Elena A Mikhaleva and Ekaterina E. Khrameeva and Diego Germini and Mariya D Logacheva and Alexey A Gavrilov and Alexander S. Gorsky and Sergey K Nechaev and Mikhail S. Gelfand and Yegor S. Vassetzky and Alexander V Chertovich and Yuri Y Shevelyov and С. В. Разин},
title = {Order and stochasticity in the folding of individual Drosophila genomes},
journal = {Nature Communications},
year = {2021},
volume = {12},
publisher = {Springer Nature},
month = {jan},
url = {https://doi.org/10.1038%2Fs41467-020-20292-z},
number = {1},
doi = {10.1038/s41467-020-20292-z}
}
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