Phytochrome B triggers light-dependent chromatin remodelling through the PRC2-associated PHD finger protein VIL1

Kim, Jung-Hyun; Bordiya, Yogendra; Kathare, Praveen Kumar; Zhao, Bo; Zong, Wei; Sung, Sibum

doi:10.1038/s41477-021-00986-y

Cited by 25 publications

(33 citation statements)

References 47 publications

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“…When temperature increases, the thermal inactivation is sped-up and phyB, alleviating the repression of elongation. Hence, phyb mutants are elongated at control temperature conditions [15,63]. Altogether, while the molecular changes were not tested at temperatures higher than 30°C, plant growth shows a monophasic response.…”

Section: Molecular Factors Involved In Perception Of (Subtle) Changes...mentioning

confidence: 99%

Wandering between hot and cold: temperature dose-dependent responses

Zhu

Zanten

Smet

2022

Trends in Plant Science

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Section: Molecular Factors Involved In Perception Of (Subtle) Changes...mentioning

confidence: 99%

Wandering between hot and cold: temperature dose-dependent responses

Zhu

Zanten

Smet

2022

Trends in Plant Science

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“…Although VIL1 is best known as a component of PRC2 that mediates H3K27me3 at the FLC locus upon vernalization (Sung et al ., 2006; Greb et al ., 2007; De Lucia et al ., 2008), it also appears to function in other developmental processes, including photoperiodic flowering (Sung et al ., 2006) and light signaling (Kim et al ., 2021). To elucidate the roles of VIL1 in early developmental processes, we performed transcriptome analysis using 1‐d‐old seedlings of wild type and vil1 mutants (Fig.…”

Section: Resultsmentioning

confidence: 99%

Abscisic acid negatively regulates the Polycomb‐mediated H3K27me3 through the PHD‐finger protein, VIL1

et al. 2022

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Polycomb dictates developmental programs in higher eukaryotes, including flowering plants. A phytohormone, abscisic acid (ABA), plays a pivotal role in seed and seedling development and mediates responses to multiple environmental stresses, such as salinity and drought.In this study, we show that ABA affects the Polycomb Repressive Complex 2 (PRC2)mediated Histone H3 Lys 27 trimethylation (H3K27me3) through VIN3-LIKE1/ VERNALIZATION 5 (VIL1/VRN5) to fine-tune the timely repression of ABSCISIC ACID INSENSITIVE 3 (ABI3) and ABSCISIC ACID INSENSITIVE 4 (ABI4) in Arabidopsis thaliana.vil1 mutants exhibit hypersensitivity to ABA during early seed germination and show enhanced drought tolerance.Our study revealed that the ABA signaling pathway utilizes a facultative component of the chromatin remodeling complex to demarcate the level of expression of ABA-responsive genes.

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“…Chromatin looping is a regulatory mechanism that facilitates interactions between genomic regions regardless of their spatial proximity (Sotelo-Silveira et al (Sung et al, 2006;Kim & Sung, 2013). VIL1 and phyB repress the expression of three hypocotyl marker genes, ATHB2, HFR1 (LONG HYPOCOTYL IN FAR-RED) and PIL1 (PHYTOCHROME INTERACTING FACTOR 3-LIKE 1) through PRC2-dependent deposition of the H3K27me3 repressive mark upstream of their TSS (Kim et al, 2021). Interestingly, vil1-1 phyB-9 double mutant seedlings demonstrated elongated hypocotyl phenotypes correlating with the degree of ATHB2 upregulation (Kim et al, 2021).…”

Section: Gene Loopsmentioning

confidence: 99%

Light, chromatin, action: nuclear events regulating light signaling in Arabidopsis

et al. 2022

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Summary The plant nucleus provides a major hub for environmental signal integration at the chromatin level. Multiple light signaling pathways operate and exchange information by regulating a large repertoire of gene targets that shape plant responses to a changing environment. In addition to the established role of transcription factors in triggering photoregulated changes in gene expression, there are eminent reports on the significance of chromatin regulators and nuclear scaffold dynamics in promoting light‐induced plant responses. Here, we report and discuss recent advances in chromatin‐regulatory mechanisms modulating plant architecture and development in response to light, including the molecular and physiological roles of key modifications such as DNA, RNA and histone methylation, and/or acetylation. The significance of the formation of biomolecular condensates of key light signaling components is discussed and potential applications to agricultural practices overviewed.

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Phytochrome B triggers light-dependent chromatin remodelling through the PRC2-associated PHD finger protein VIL1

Cited by 25 publications

References 47 publications

Wandering between hot and cold: temperature dose-dependent responses

Wandering between hot and cold: temperature dose-dependent responses

Abscisic acid negatively regulates the Polycomb‐mediated H3K27me3 through the PHD‐finger protein, VIL1

Light, chromatin, action: nuclear events regulating light signaling in Arabidopsis

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