The Binding Specificity of the PHD-Finger Domain of VIN3 Moderates Vernalization Response

Kim, Dong Hwan; Sung, Sibum

doi:10.1104/pp.16.01320

Cited by 24 publications

(14 citation statements)

References 60 publications

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“…In addition to the temperature dependence of VIN3 dynamics, the I to E and H to E transitions are also directly temperature dependent. This feature is necessary to explain the absence of silencing in the warm in lines overexpressing VIN3 ( Kim and Sung, 2017 , Lee et al., 2015 ), suggesting cold is necessary for the nucleation of epigenetic silencing. We also observed a difference in the rate of FLC downregulation at the different field sites, with the Swedish sites having slower downregulation despite higher levels of VIN3 compared to Norwich ( Hepworth et al., 2018 ).…”

Section: Resultsmentioning

confidence: 99%

“…The rates s2,s3 were also assumed to depend directly on temperature. It has been reported that, in the warm, overexpression of VIN3 does not lead to epigenetic silencing of FLC (Kim and Sung, 2017, Lee et al., 2015). Additionally, at temperatures close to 0°C, vernalization was found to be less effective (Duncan et al., 2015, Napp-Zinn, 1957, Wilczek et al., 2009).…”

Section: Methodsmentioning

confidence: 99%

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Temperature Sensing Is Distributed throughout the Regulatory Network that Controls FLC Epigenetic Silencing in Vernalization

et al. 2018

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SummaryMany organisms need to respond to complex, noisy environmental signals for developmental decision making. Here, we dissect how Arabidopsis plants integrate widely fluctuating field temperatures over month-long timescales to progressively upregulate VERNALIZATION INSENSITIVE3 (VIN3) and silence FLOWERING LOCUS C (FLC), aligning flowering with spring. We develop a mathematical model for vernalization that operates on multiple timescales—long term (month), short term (day), and current (hour)—and is constrained by experimental data. Our analysis demonstrates that temperature sensing is not localized to specific nodes within the FLC network. Instead, temperature sensing is broadly distributed, with each thermosensory process responding to specific features of the plants’ history of exposure to warm and cold. The model accurately predicts FLC silencing in new field data, allowing us to forecast FLC expression in changing climates. We suggest that distributed thermosensing may be a general property of thermoresponsive regulatory networks in complex natural environments.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Temperature Sensing Is Distributed throughout the Regulatory Network that Controls FLC Epigenetic Silencing in Vernalization

et al. 2018

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“…Similarly, Bna.VIN3.A2 might affect yield through regulation of plant architecture. In Arabidopsis , a single amino acid change in the PHD zinc finger domain completely abolishes the binding ability of the VIN3 protein and results in altered vernalization response (Kim & Sung, ). We performed sequence analysis in different rapeseed ecotypes for Bna.VIN3.A2 .…”

Section: Discussionmentioning

confidence: 99%

Whole‐transcriptome analysis reveals genetic factors underlying flowering time regulation in rapeseed (Brassica napus L.)

Shah

Weinholdt

Jedrusik

et al. 2018

Plant Cell & Environment

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Rapeseed (Brassica napus L.), one of the most important sources of vegetable oil and protein-rich meals worldwide, is adapted to different geographical regions by modification of flowering time. Rapeseed cultivars have different day length and vernalization requirements, which categorize them into winter, spring, and semiwinter ecotypes. To gain a deeper insight into genetic factors controlling floral transition in B. napus, we performed RNA sequencing (RNA-seq) in the semiwinter doubled haploid line, Ningyou7, at different developmental stages and temperature regimes. The expression profiles of more than 54,000 gene models were compared between different treatments and developmental stages, and the differentially expressed genes were considered as targets for association analysis and genetic mapping to confirm their role in floral transition. Consequently, 36 genes with association to flowering time, seed yield, or both were identified. We found novel indications for neofunctionalization in homologs of known flowering time regulators like VIN3 and FUL. Our study proved the potential of RNA-seq along with association analysis and genetic mapping to identify candidate genes for floral transition in rapeseed. The candidate genes identified in this study could be subjected to genetic modification or targeted mutagenesis and genotype building to breed rapeseed adapted to certain environments.

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“…These PRC2 accessory proteins also interact with MSI1 and VAL1/2, linking PRC2 to the nucleation region [ 163 , 164 ]. VIN3 induction by NAC with TRANSMEMBRANE MOTIF 1-LIKE 8 (NTL8) is essential for the plant to sense the difference between short and prolonged periods of cold [ 168 , 169 , 170 ] ( Figure 1 C).…”

Section: Effect Of Suboptimal Temperature and Vernalization In Flowering Timementioning

confidence: 99%

Beyond the Genetic Pathways, Flowering Regulation Complexity in Arabidopsis thaliana

Quiroz

Yustis

Chávez-Hernández

et al. 2021

IJMS

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Flowering is one of the most critical developmental transitions in plants’ life. The irreversible change from the vegetative to the reproductive stage is strictly controlled to ensure the progeny’s success. In Arabidopsis thaliana, seven flowering genetic pathways have been described under specific growth conditions. However, the evidence condensed here suggest that these pathways are tightly interconnected in a complex multilevel regulatory network. In this review, we pursue an integrative approach emphasizing the molecular interactions among the flowering regulatory network components. We also consider that the same regulatory network prevents or induces flowering phase change in response to internal cues modulated by environmental signals. In this sense, we describe how during the vegetative phase of development it is essential to prevent the expression of flowering promoting genes until they are required. Then, we mention flowering regulation under suboptimal growing temperatures, such as those in autumn and winter. We next expose the requirement of endogenous signals in flowering, and finally, the acceleration of this transition by long-day photoperiod and temperature rise signals allowing A. thaliana to bloom in spring and summer seasons. With this approach, we aim to provide an initial systemic view to help the reader integrate this complex developmental process.

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The Binding Specificity of the PHD-Finger Domain of VIN3 Moderates Vernalization Response

Cited by 24 publications

References 60 publications

Temperature Sensing Is Distributed throughout the Regulatory Network that Controls FLC Epigenetic Silencing in Vernalization

Temperature Sensing Is Distributed throughout the Regulatory Network that Controls FLC Epigenetic Silencing in Vernalization

Whole‐transcriptome analysis reveals genetic factors underlying flowering time regulation in rapeseed (Brassica napus L.)

Beyond the Genetic Pathways, Flowering Regulation Complexity in Arabidopsis thaliana

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