scholarly journals Concerto on Chromatin: Interplays of Different Epigenetic Mechanisms in Plant Development and Environmental Adaptation

Plants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2766
Author(s):  
Jiao Liu ◽  
Cheng Chang

Epigenetic mechanisms such as DNA methylation, histone post-translational modifications, chromatin remodeling, and noncoding RNAs, play important roles in regulating plant gene expression, which is involved in various biological processes including plant development and stress responses. Increasing evidence reveals that these different epigenetic mechanisms are highly interconnected, thereby contributing to the complexity of transcriptional reprogramming in plant development processes and responses to environmental stresses. Here, we provide an overview of recent advances in understanding the epigenetic regulation of plant gene expression and highlight the crosstalk among different epigenetic mechanisms in making plant developmental and stress-responsive decisions. Structural, physical, transcriptional and metabolic bases for these epigenetic interplays are discussed.

Author(s):  
Tom J. Guilfoyle ◽  
Bruce A. McClure ◽  
Christopher Brown ◽  
Melissa Gee ◽  
Antonio Franco ◽  
...  

2020 ◽  
Author(s):  
Arjun Khakhar ◽  
Cecily Wang ◽  
Ryan Swanson ◽  
Sydney Stokke ◽  
Furva Rizvi ◽  
...  

AbstractSynthetic transcription factors have great promise as tools to explore biological processes. By allowing precise alterations in gene expression, they can help elucidate relationships between gene expression and plant morphology or metabolism. However, the years-long timescales, high cost, and technical skill associated with plant transformation have dramatically slowed their use. In this work, we developed a new platform technology called VipariNama (ViN) in which RNA vectors are used to rapidly deploy synthetic transcription factors and reprogram gene expression in planta. We demonstrate how ViN vectors can direct activation or repression of multiple genes, systemically and persistently over several weeks, and in multiple plant species. We also show how this transcriptional reprogramming can create predictable changes to metabolic and morphological phenotypes in the model plants Nicotiana benthamiana and Arabidopsis thaliana in a matter of weeks. Finally, we show how a model of gibberellin signaling can guide ViN vector-based reprogramming to rapidly engineer plant size in both model species as well as the crop Solanum lycopersicum (tomato). In summary, using VipariNama accelerates the timeline for generating phenotypes from over a year to just a few weeks, providing an attractive alternative to transgenesis for synthetic transcription factor-enabled hypothesis testing and crop engineering.


2015 ◽  
Vol 167 (1) ◽  
pp. 135-155 ◽  
Author(s):  
C.F. Munhoz ◽  
A.A. Santos ◽  
R.A. Arenhart ◽  
L. Santini ◽  
C.B. Monteiro-Vitorello ◽  
...  

2016 ◽  
Vol 213 (1) ◽  
pp. 365-379 ◽  
Author(s):  
Valeria Fochi ◽  
Walter Chitarra ◽  
Annegret Kohler ◽  
Samuele Voyron ◽  
Vasanth R. Singan ◽  
...  

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