2019
DOI: 10.1101/2019.12.26.888768
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Viral fitness determines the magnitude of transcriptomic and epigenomic reprogramming of defense responses in plants

Abstract: SUMMARYAlthough epigenetic factors may influence the expression of defense genes in plants, their role in antiviral responses and the impact of viral adaptation and evolution in shaping these interactions are still poorly explored. We used two isolates of turnip mosaic potyvirus (TuMV) with varying degrees of adaptation to Arabidopsis thaliana to address these issues. One of the isolates was experimentally evolved in the plant and presented increased … Show more

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Cited by 3 publications
(8 citation statements)
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“…Another possibility would be a change in plant DNA methylation (Figure 7b), which is one of the epigenetic factors that regulates gene expression. DNA methylation is controlled by several plant SAM‐dependent DNA methyltransferases and therefore may be affected by perturbations in the MTC (Correa et al, 2020; Kuznicki et al, 2019). To fulfil its functions in plant development and responses to biotic and abiotic stress conditions, DNA methylation in plants normally achieves a balance between stable and flexible methylation status tuned with the transcriptional repressive or active state of the corresponding genes.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Another possibility would be a change in plant DNA methylation (Figure 7b), which is one of the epigenetic factors that regulates gene expression. DNA methylation is controlled by several plant SAM‐dependent DNA methyltransferases and therefore may be affected by perturbations in the MTC (Correa et al, 2020; Kuznicki et al, 2019). To fulfil its functions in plant development and responses to biotic and abiotic stress conditions, DNA methylation in plants normally achieves a balance between stable and flexible methylation status tuned with the transcriptional repressive or active state of the corresponding genes.…”
Section: Discussionmentioning
confidence: 99%
“…With regard to virus–plant interactions, the MTC is closely linked to RNAi pathways, in which siRNAs are stabilized by the MTC‐based methylation process (Li et al, 2005). Plant host DNA methylation, as an epigenetic mechanism driven by the MTC, has also been suggested as playing an important role in modulating host responses to viruses by modifying functions of host genes and affecting gene expression (Corrêa et al, 2020; Wang et al, 2019). Another factor released as a product of the MTC‐related pathway is ethylene, a plant hormone that, like other hormones, plays important roles in plant responses to biotic and abiotic stress responses (reviewed in Müller and Munné‐Bosch, 2015).…”
Section: Introductionmentioning
confidence: 99%
“…In the TuMV/Arabidopsis pathosystem, there is a one-to-one match between infection status and the development of symptoms ( González, Butković, and Elena 2019 ; Corrêa et al. 2020 ); all infected plants develop obvious symptoms at the temperature conditions used in this experiment.…”
Section: Methodsmentioning
confidence: 99%
“…2020 ); all infected plants develop obvious symptoms at the temperature conditions used in this experiment. Likewise, in this pathosystem the intensity of symptoms is significantly correlated with viral load ( Corrêa et al. 2020 ).…”
Section: Methodsmentioning
confidence: 99%
“…A collection of 21 different A. thaliana mutants of the Col-0 accession were used for this study (Table 1). In all experiments described below, plants were all maintained in a BSL- promoter and the nos terminator (Chen et al 2003) as described elsewhere (González et al 2019;Corrêa et al 2020). This TuMV sequence variant corresponds to the YC5 isolate from calla lily (Zantesdeschia sp) (Chen et al 2003).…”
Section: Plants Virus and Growth Conditionsmentioning
confidence: 99%