Building Differential Co-expression Networks with Variable Selection and Regularization

Camila Riccio, Jorge Finke, Camilo Rocha

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This work introduces a technique for the inference of differential co-expression networks. The approach takes as input a matrix of differential expression profiles, where each entry corresponds to the Log Fold Change of a gene expression between control and stress conditions for a specific sample. It outputs a matrix of coefficients, where each non-zero entry represents a pairwise connection between genes. The proposed approach builds on Lasso, and is applied to differential expression profiles of rice between control and salt-stress conditions. A total of 25 genes were identified to respond to salt stress and as differentially expressed. About half of these genes (11) were reported with a statistically significant number of different GO annotations relevant to salt stress response.

Original languageEnglish
Title of host publicationComplex Networks and Their Applications XI - Proceedings of The 11th International Conference on Complex Networks and Their Applications
Subtitle of host publicationCOMPLEX NETWORKS 2022—Volume 1
EditorsHocine Cherifi, Rosario Nunzio Mantegna, Luis M. Rocha, Chantal Cherifi, Salvatore Miccichè
PublisherSpringer Science and Business Media Deutschland GmbH
Pages277-288
Number of pages12
ISBN (Print)9783031211263
DOIs
StatePublished - 2023
Event11th International Conference on Complex Networks and their Applications, COMPLEX NETWORKS 2022 - Palermo, Italy
Duration: 08 Nov 202210 Nov 2022

Publication series

NameStudies in Computational Intelligence
Volume1077 SCI
ISSN (Print)1860-949X
ISSN (Electronic)1860-9503

Conference

Conference11th International Conference on Complex Networks and their Applications, COMPLEX NETWORKS 2022
Country/TerritoryItaly
CityPalermo
Period08/11/2210/11/22

Keywords

  • Lasso-based inference
  • Network inference
  • Oryza sativa
  • Overlapping clustering
  • Rice
  • Salt-stress

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