2014
DOI: 10.1101/cshperspect.a019471
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Epigenetic Regulation in Plant Responses to the Environment

Abstract: SUMMARYIn this article, we review environmentally mediated epigenetic regulation in plants using two case histories. One of these, vernalization, mediates adaptation of plants to different environments and it exemplifies processes that are reset in each generation. The other, virus-induced silencing, involves transgenerationally inherited epigenetic modifications. Heritable epigenetic marks may result in heritable phenotypic variation, influencing fitness, and so be subject to natural selection. However, unlik… Show more

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Cited by 218 publications
(184 citation statements)
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References 103 publications
(113 reference statements)
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“…In these cases, as is the case in Drosophila, PEV silencing of euchromatic genes is connected with placement of those genes into a new heterochromatic neighborhood. Transcriptional gene silencing has also been observed for repeated sequences (repeat induced gene silencing), particularly in plants (Baulcombe and Dean 2014). Analysis of the affected sequences has revealed the appearance of similar epigenetic marks (histone modifications and DNA methylation) as found in heterochromatin and in regions silenced by PEV.…”
Section: Pev Heterochromatin Formation and Gene Silencing In Differmentioning
confidence: 94%
“…In these cases, as is the case in Drosophila, PEV silencing of euchromatic genes is connected with placement of those genes into a new heterochromatic neighborhood. Transcriptional gene silencing has also been observed for repeated sequences (repeat induced gene silencing), particularly in plants (Baulcombe and Dean 2014). Analysis of the affected sequences has revealed the appearance of similar epigenetic marks (histone modifications and DNA methylation) as found in heterochromatin and in regions silenced by PEV.…”
Section: Pev Heterochromatin Formation and Gene Silencing In Differmentioning
confidence: 94%
“…While chromatin states are a critical part of transcriptional responses during development (reviewed in He et al, 2011;Holec and Berger, 2012;Grimanelli and Roudier, 2013;Pikaard and Mittelsten Scheid, 2014;Xiao and Wagner, 2015) or in response to the environment (reviewed in Baulcombe and Dean, 2014;Bond and Baulcombe, 2014;Pikaard and Mittelsten Scheid, 2014;Probst and Mittelsten Scheid, 2015;Vriet et al, 2015), they also play critical roles in creating order in the genome, allowing for the maintenance of proper transcription and genome stability in the face of varying TE landscapes and polyploid changes. We suggest that diverse plant species have evolved variations in the specific mechanisms of chromatin regulation that have allowed them to survive the repeated transposon bursts or polyploidy fusions.…”
Section: Resultsmentioning
confidence: 99%
“…In some cases, chromatin modifiers are likely to be recruited to achieve and stabilize alterations in transcription. Several recent reviews have provided excellent summaries of these activities and point toward the conservation of these pathways among flowering plants (Baulcombe and Dean, 2014;Bond and Baulcombe, 2014;Pikaard and Mittelsten Scheid, 2014;Probst and Mittelsten Scheid, 2015;Vriet et al, 2015;Xiao and Wagner, 2015). In this Review, we focus on aspects of chromatin regulation that might be variable or drive variation among closely related species.…”
Section: Introductionmentioning
confidence: 99%
“…Mutations in the FERTILIZATION-INDEPENDENT SEED (FIS) class of genes were found in screens for mutants showing maternal-effect seed abortion (Grossniklaus et al 1998), or allowing aspects of seed development to occur in the absence of fertilization (Luo et al 1999;Ohad et al 1999). Finally, PcG genes were identified in screens for flowering time mutants, forexample, mutantsthat flower directly after germination (Yoshida et al 2001) or that disrupt the vernalization response (Gendall et al 2001)-the process rendering plants competent to flower after prolonged exposure to cold (discussed in detail in Baulcombe and Dean 2014).…”
Section: The Genetic Identification Of the Polycombmentioning
confidence: 99%