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Integrating Transcriptome and Chromatin Landscapes for Deciphering the Epigenetic Regulation of Drought Response in Maize

  • Cristian Forestan
  • Silvia Farinati
  • Alice Lunardon
  • Serena Varotto
Chapter
Part of the Compendium of Plant Genomes book series (CPG)

Abstract

Water scarcity associated with climate change is among the principal constraints to plant productivity worldwide, and crop growth models predict that this issue will be more severe in future. Plants withstand drought stress by modifying their gene expression patterns and activating a variety of physiological and biochemical responses at cellular and whole-organism levels. Molecular and genomic studies have indeed identified many stress-inducible genes in different plant species. Stress-responsive genes encode for proteins with various functions and signaling factors, such as transcription factors, protein kinases, and protein phosphatases, but also include several noncoding and regulatory RNAs involved in the modulation of the stress response networks, making it a very complex phenomenon. Affecting a number of different aspects of plant growth and development, chromatin-based mechanisms, such as histone post-translational modifications, are fundamental for the fine coordination and tuning of gene expression in response to environmental cues. Several histone modifications have been found dramatically altered on stress-responsive gene regions under drought stress; thus, the integration of different omics technologies are essential to deeply understand plant tolerance mechanisms and manage them toward breeding for drought tolerance in maize.

Notes

Acknowledgements

Thanks to Vincenzo Rossi and Giulio Pavesi for their precious support on ChIP-Seq. This work was conducted within the grants from the European Commission (FP7 Project KBBE 2009 226477—“AENEAS”: Acquired Environmental Epigenetics Advances: from Arabidopsis to maize) and Italian MIUR-CNR Flagship project EPIGEN.

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© Springer Nature Switzerland AG 2018

Authors and Affiliations

  • Cristian Forestan
    • 1
  • Silvia Farinati
    • 1
  • Alice Lunardon
    • 2
  • Serena Varotto
    • 1
  1. 1.Department of Agronomy, Food, Natural resources, Animal and Environment (DAFNAE) AgripolisUniversity of PadovaLegnaroItaly
  2. 2.Department of Biology and Huck Institutes of the Life SciencesPenn State UniversityLos AngelesUSA

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