Tissue-Specific Expression of FLOWERING LOCUS T in Arabidopsis Is Maintained Independently of Polycomb Group Protein Repression

被引：65

作者：

Farrona, Sara ^{[1
]}

Thorpe, Frazer L. ^{[2
]}

Engelhorn, Julia ^{[1
]}

Adrian, Jessika ^{[1
]}

Dong, Xue ^{[1
]}

Sarid-Krebs, Liron ^{[1
]}

Goodrich, Justin ^{[2
]}

Turck, Franziska ^{[1
]}

机构：

[1] Max Planck Inst Plant Breeding Res, D-50829 Cologne, Germany

[2] Univ Edinburgh, Inst Mol Plant Sci, Edinburgh EH9 3JH, Midlothian, Scotland

来源：

PLANT CELL | 2011年 / 23卷 / 09期

基金：

英国生物技术与生命科学研究理事会;

关键词：

HYBRIDIZATION (CHIP-CHIP). PART; HISTONE H3; CHROMATIN IMMUNOPRECIPITATION; VASCULAR TISSUES; DNA INTERACTION; DOMAIN PROTEIN; PLANT POLYCOMB; LYSINE; 27; GENES; CONSTANS;

D O I：

10.1105/tpc.111.087809

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

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.

引用

页码：3204 / 3214

页数：11

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