Role of plant CBP/p300‐like genes in the regulation of flowering time
- 27 November 2006
- journal article
- Published by Wiley in The Plant Journal
- Vol. 49 (1) , 103-114
- https://doi.org/10.1111/j.1365-313x.2006.02939.x
Abstract
CREB‐binding protein (CBP) and its homolog p300 possess histone acetyltransferase activity and function as key transcriptional co‐activators in the regulation of gene expression that controls differentiation and development in animals. However, the role of CBP/p300‐like genes in plants has not yet been elucidated. Here, we show that Arabidopsis CBP/p300‐like genes promote flowering by affecting the expression of a major floral repressor FLOWERING LOCUS C (FLC). Although animal CBP and p300 generally function as co‐activators, Arabidopsis CBP/p300‐like proteins are required for the negative regulation of FLC. This CBP/p300‐mediated FLC repression may involve reversible protein acetylation independent of histone modification within FLC chromatin.Keywords
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