title: RulNet: A Web-Oriented Platform for Regulatory Network Inference, Application to Wheat -Omics Data.
abstract: With the increasing amount of -omics data available, a particular effort has to be made to provide suitable analysis tools. A major challenge is that of unraveling the molecular regulatory networks from massive and heterogeneous datasets. Here we describe RulNet, a web-oriented platform dedicated to the inference and analysis of regulatory networks from qualitative and quantitative -omics data by means of rule discovery. Queries for rule discovery can be written in an extended form of the RQL query language, which has a syntax similar to SQL. RulNet also offers users interactive features that progressively adjust and refine the inferred networks. In this paper, we present a functional characterization of RulNet and compare inferred networks with correlation-based approaches. The performance of RulNet has been evaluated using the three benchmark datasets used for the transcriptional network inference challenge DREAM5. Overall, RulNet performed as well as the best methods that participated in this challenge and it was shown to behave more consistently when compared across the three datasets. Finally, we assessed the suitability of RulNet to analyze experimental -omics data and to infer regulatory networks involved in the response to nitrogen and sulfur supply in wheat (Triticum aestivum L.) grains. The results highlight putative actors governing the response to nitrogen and sulfur supply in wheat grains. We evaluate the main characteristics and features of RulNet as an all-in-one solution for RN inference, visualization and editing. Using simple yet powerful RulNet queries allowed RNs involved in the adaptation of wheat grain to N and S supply to be discovered. We demonstrate the effectiveness and suitability of RulNet as a platform for the analysis of RNs involving different types of -omics data. The results are promising since they are consistent with what was previously established by the scientific community.
authors.affiliation: Blaise Pascal University, UMR6158 CNRS LIMOS Laboratoire d'Informatique, de Modélisation et d'Optimisation des Systèmes, Aubière, F-63 173, France; INRA, UMR1095 Genetics, Diversity and Ecophysiology of Cereals, Clermont-Ferrand, F-63 039, France; Blaise Pascal University, UMR1095 Genetics, Diversity and Ecophysiology of Cereals, Aubière, F-63 177, France.
authors.forename: Jonathan
authors.initials: J
authors.lastname: Vincent
authors.affiliation: INRA, UMR1095 Genetics, Diversity and Ecophysiology of Cereals, Clermont-Ferrand, F-63 039, France; Blaise Pascal University, UMR1095 Genetics, Diversity and Ecophysiology of Cereals, Aubière, F-63 177, France.
authors.forename: Pierre
authors.initials: P
authors.lastname: Martre
authors.affiliation: Blaise Pascal University, UMR6158 CNRS LIMOS Laboratoire d'Informatique, de Modélisation et d'Optimisation des Systèmes, Aubière, F-63 173, France.
authors.forename: Benjamin
authors.initials: B
authors.lastname: Gouriou
authors.affiliation: INRA, UMR1095 Genetics, Diversity and Ecophysiology of Cereals, Clermont-Ferrand, F-63 039, France; Blaise Pascal University, UMR1095 Genetics, Diversity and Ecophysiology of Cereals, Aubière, F-63 177, France.
authors.forename: Catherine
authors.initials: C
authors.lastname: Ravel
authors.affiliation: INRA, UMR1095 Genetics, Diversity and Ecophysiology of Cereals, Clermont-Ferrand, F-63 039, France; Blaise Pascal University, UMR1095 Genetics, Diversity and Ecophysiology of Cereals, Aubière, F-63 177, France.
authors.forename: Zhanwu
authors.initials: Z
authors.lastname: Dai
authors.affiliation: INSA Lyon, UMR5205 CNRS LIRIS Laboratoire d'Informatique en Images et Systèmes d'Information, Villeurbanne, F-69 621, France.
authors.forename: Jean-Marc
authors.initials: JM
authors.lastname: Petit
authors.affiliation: Blaise Pascal University, UMR6158 CNRS LIMOS Laboratoire d'Informatique, de Modélisation et d'Optimisation des Systèmes, Aubière, F-63 173, France.
authors.forename: Marie
authors.initials: M
authors.lastname: Pailloux
mesh_terms: D053263:Gene Regulatory Networks; D017343:Genes, Plant; D020407:Internet; D014908:Triticum / Q000235:genetics*