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• W2966297224 endingPage "668" @default.
• W2966297224 startingPage "656" @default.
• W2966297224 abstract "Changing daylength (or photoperiod) is a seasonal cue used by many plants to adjust the timing of their floral transition to ensure reproductive success. An inductive long-day photoperiod triggers the expression of FLOWERING LOCUS T (FT), which promotes flowering. FT, encoding a major component of florigen, is induced in leaf veins specifically at dusk through the photoperiod pathway; however, the modulation of FT expression in response to photoperiod cues remains poorly understood. Here, we report that the balance between Polycomb group (PcG) and Trithorax group (TrxG) proteins sets appropriate FT expression in long days in Arabidopsis (Arabidopsis thaliana). In PcG mutant lines, FT was highly derepressed, but FT expression was decreased to an almost wild-type level and pattern upon the additional disruption of chromatin-remodeling factors PICKLE (PKL) and ARABIDOPSIS HOMOLOG OF TRITHORAX1 (ATX1), but not by disruption of photoperiod pathway components. PKL interacts with ATX1 to mediate trimethylation of histone H3 on lysine-4 at the FT locus, leading to antagonistic effects of PKL and ATX1 on PcG proteins in the regulation of FT expression. Therefore, the TrxG-like protein PKL prevents PcG-mediated silencing to ensure specific and appropriate expression of FT, thereby determining the proper flowering response." @default.
• W2966297224 created "2019-08-13" @default.
• W2966297224 creator A5017103336 @default.
• W2966297224 creator A5037490290 @default.
• W2966297224 creator A5050832736 @default.
• W2966297224 date "2019-08-03" @default.
• W2966297224 modified "2023-10-17" @default.
• W2966297224 title "The Chromatin-Remodeling Factor PICKLE Antagonizes Polycomb Repression of <i>FT</i> to Promote Flowering" @default.
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• W2966297224 doi "https://doi.org/10.1104/pp.19.00596" @default.
• W2966297224 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6776858" @default.
• W2966297224 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31377725" @default.
• W2966297224 hasPublicationYear "2019" @default.
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