PreprintCited by 173Genomics and Chromatin DynamicsSingle-cell and spatial transcriptomicsGene Regulatory Network Analysis

The DOI matches its Crossref record; 140 of the 143 references it cites were found in a registry or an index.

Decoding gene regulation in the fly brain

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Preprint — published as 10.1038/s41586-021-04262-z · Paper page

Abstract

Summary: The Drosophila brain is a work horse in neuroscience. Single-cell transcriptome analysis 1–5, 3D morphological classification 6 , and detailed EM mapping of the connectome 7–10 have revealed an immense diversity of neuronal and glial cell types that underlie the wide array of functional and behavioral traits in the fruit fly. The identities of these cell types are controlled by – still unknown – gene regulatory networks (GRNs), involving combinations of transcription factors that bind to genomic enhancers to regulate their target genes. To characterize the GRN for each cell type in the Drosophila brain, we profiled chromatin accessibility of 240,919 single cells spanning nine developmental timepoints, and integrated this data with single-cell transcriptomes. We identify more than 95,000 regulatory regions that are used in different neuronal cell types, of which around 70,000 are linked to specific developmental trajectories, involving neurogenesis, reprogramming and maturation. For 40 cell types, their uniquely accessible regions could be associated with their expressed transcription factors and downstream target genes, through a combination of motif discovery, network inference techniques, and deep learning. We illustrate how these “enhancer-GRNs” can be used to reveal enhancer architectures leading to a better understanding of neuronal regulatory diversity. Finally, our atlas of regulatory elements can be used to design genetic driver lines for specific cell types at specific timepoints, facilitating the characterization of brain cell types and the manipulation of brain function.

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  1. 10.1093/bioinformatics/btx194. · DOI · Paper page
  2. 10.1101/2020.04.28.066498 · DOI
  3. Shrikumar, A. , Greenside, P. & Kundaje, A . Learning Important Features Through Propagating Activation Differences. arXiv:1704.02685 [cs] (2019). · arXiv

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Items 101–173 of 173

Metadata

Authors
Janssens, J., Aibar, S., Taskiran, I. I., Ismail, J. N., Spanier, K. I., Bravo González-Blas, C., Quan, X. J., Papasokrati, D., Hulselmans, G., Makhzami, S., Waegeneer, M. D., Christiaens, V., & Aerts, S.
Affiliations
VIB-KU Leuven Center for Brain & Disease Research (BE)
Corresponding author
Aerts, Stein
Venue
Nature
Publisher
openRxiv
Published
2021-08-12
Volume
601
Issue
7894
Pages
630-636
ISSN
0028-0836 (ISSN-L)
OpenAlex
W4205345182
Cited by
170
References
143
Citations by year
2026: 22 · 2025: 36 · 2024: 35 · 2023: 40 · 2022: 35 · 2021: 1
FWCI
12.15
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • UCL Discovery (University College London) (submittedVersion)
  • Lirias (submittedVersion, other-oa)
Funders
  • Wellcome Trust (207467/Z/17/Z)
  • Medical Research Council (MR/L018802/1, MR/L018802/2)
  • Biotechnology and Biological Sciences Research Council (BB/W001004/1)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Single-cell and spatial transcriptomics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene Regulatory Network Analysis
Keywords
Drosophila brain, gene regulatory networks, enhancers, chromatin accessibility, single-cell transcriptomics, transcription factors, transcription factor binding sites, neuronal cell types, neurogenesis, developmental trajectories
MeSH terms
Animals, Brain, Drosophila, Gene Expression Regulation, Transcription Factors, Gene Expression Regulation, Developmental, Gene Regulatory Networks

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