Integrated multi-omics framework of the plant response to jasmonic acid

Mark Zander, Mathew G. Lewsey, Natalie M. Clark, Lingling Yin, Anna Bartlett, J. Paula Saldierna Guzmán, Elizabeth Hann, Amber E. Langford, Bruce Jow, Aaron Wise, Joseph R. Nery, Huaming Chen, Ziv Bar-Joseph, Justin W. Walley, Roberto Solano, Joseph R. Ecker

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

Understanding the systems-level actions of transcriptional responses to hormones provides insight into how the genome is reprogrammed in response to environmental stimuli. Here, we investigated the signalling pathway of the hormone jasmonic acid (JA), which controls a plethora of critically important processes in plants and is orchestrated by the transcription factor MYC2 and its closest relatives in Arabidopsis thaliana. We generated an integrated framework of the response to JA, which spans from the activity of master and secondary regulatory transcription factors, through gene expression outputs and alternative splicing, to protein abundance changes, protein phosphorylation and chromatin remodelling. We integrated time-series transcriptome analysis with (phospho)proteomic data to reconstruct gene regulatory network models. These enabled us to predict previously unknown points of crosstalk of JA to other signalling pathways and to identify new components of the JA regulatory mechanism, which we validated through targeted mutant analysis. These results provide a comprehensive understanding of how a plant hormone remodels cellular functions and plant behaviour, the general principles of which provide a framework for analyses of cross-regulation between other hormone and stress signalling pathways.

Original languageEnglish (US)
Pages (from-to)290-302
Number of pages13
JournalNature Plants
Volume6
Issue number3
DOIs
StatePublished - Mar 1 2020
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Plant Science

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