Journal
PLANT CELL
Volume 23, Issue 9, Pages 3204-3214Publisher
AMER SOC PLANT BIOLOGISTS
DOI: 10.1105/tpc.111.087809
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Funding
- Deutsche Forschungsgemeinschaft
- Max Planck Society
- BBSRC [BB/F007442/1, BB/H004319/1] Funding Source: UKRI
- Biotechnology and Biological Sciences Research Council [BB/F007442/1, BB/H004319/1] Funding Source: researchfish
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The Polycomb Group (PcG) pathway represses transcription through a mechanism conserved among plants and animals. PcG-mediated repression can determine spatial territories of gene expression, but it remains unclear whether PcG-mediated repression is a regulatory requirement for all targets. Here, we show the role of PcG proteins in the spatial regulation of FLOWERING LOCUS T (FT), a main activator of flowering in Arabidopsis thaliana exclusively expressed in the vasculature. Strikingly, the loss of PcG repression causes down-regulation of FT. In addition, our results show how the effect of PcG-mediated regulation differs for target genes and that, for FT expression, it relies primarily on tissue differentiation.
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