Article (Scientific journals)
Mapping Gene Regulatory Networks in Drosophila Eye Development by Large-Scale Transcriptome Perturbations and Motif Inference
Potier, Delphine; Davie, Kristofer; Hulselmans, Gert et al.
2014In Cell Reports, 9 (6), p. 2290-2303
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Abstract :
[en] Genome control is operated by transcription factors (TFs) controlling their target genes by binding to promoters and enhancers. Conceptually, the interactions between TFs, their binding sites, and their functional targets are represented by gene regulatory networks (GRNs). Deciphering in vivo GRNs underlying organ development in an unbiased genome-wide setting involves identifying both functional TF-gene interactions and physical TF-DNA interactions. To reverse engineer the GRNs of eye development in Drosophila, we performed RNA-seq across 72 genetic perturbations and sorted cell types and inferred a coexpression network. Next, we derived direct TF-DNA interactions using computational motif inference, ultimately connecting 241 TFs to 5,632 direct target genes through 24,926 enhancers. Using this network, we found network motifs, cis-regulatory codes, and regulators of eye development. We validate the predicted target regions of Grainyhead by ChIP-seq and identify this factor as a general cofactor in the eye network, being bound to thousands of nucleosome-free regions.
Disciplines :
Genetics & genetic processes
Author, co-author :
Potier, Delphine;  University of Leuven > Center for Human Genetics > Laboratory of Computational Biology
Davie, Kristofer;  University of Leuven > Center for Human Genetics > Laboratory of Computational Biology
Hulselmans, Gert;  University of Leuven > Center for Human Genetics > Laboratory of Computational Biology
Naval Sanchez, Marina;  Katholieke Universiteit Leuven - KUL > Center for Human Genetics > Laboratory of Computational Biology
Haagen, Lotte;  Katholieke Universiteit Leuven - KUL > Center for Human Genetics > Laboratory of Computational Biology
Huynh-Thu, Vân Anh ;  Université de Liège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Koldere, Duygu;  Bogazici University > Department of Molecular Biology and Genetics
Celik, Azu;  Bogazici University > Department of Molecular Biology and Genetics
Geurts, Pierre ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Algorith. des syst. en interaction avec le monde physique
Christiaens, Valérie;  Katholieke Universiteit Leuven - KUL > Center for Human Genetics > Laboratory of Computational Biology
Aerts, Stein;  Katholieke Universiteit Leuven - KUL > Center for Human Genetics > Laboratory of Computational Biology
Language :
English
Title :
Mapping Gene Regulatory Networks in Drosophila Eye Development by Large-Scale Transcriptome Perturbations and Motif Inference
Publication date :
18 December 2014
Journal title :
Cell Reports
eISSN :
2211-1247
Publisher :
Elsevier
Volume :
9
Issue :
6
Pages :
2290-2303
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 28 February 2015

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