title: Y flowering? Regulation and activity of CONSTANS and CCT-domain proteins in Arabidopsis and crop species.
abstract: Changes in day length regulate the proper timing of flowering in several plant species. The genetic architecture of this process is based on CCT-domain proteins, many of which interact with NF-Y subunits to regulate transcription of target genes. In the model plant Arabidopsis thaliana, the CONSTANS CCT-domain protein is a central photoperiodic sensor. We will discuss how the diurnal rhythms of its transcription and protein accumulation are generated, and how the protein engages into multiple complexes to control production of a systemic flowering signal. Regulatory parallels will be drawn between Arabidopsis and major crops that indicate conservation of some CCT/NF-Y modules during plant evolution. This article is part of a Special Issue entitled: Nuclear Factor Y in Development and Disease, edited by Prof. Roberto Mantovani.
authors: Department of Agricultural and Environmental Sciences - Production, Territory, Agroenergy, University of Milan, Via Celoria 2, 20133 Milan, Italy.
authors: Vittoria
authors: V
authors: Brambilla
authors: Department of Biosciences, University of Milan, Via Celoria 26, 20133 Milan, Italy. Electronic address: fabio.fornara@unimi.it.
authors: Fabio
authors: F
authors: Fornara
mesh_terms: D017360:Arabidopsis / Q000235:genetics / Q000378:metabolism*; D029681:Arabidopsis Proteins / Q000235:genetics / Q000378:metabolism*; D023081:CCAAT-Binding Factor / Q000235:genetics / Q000378:metabolism*; D018556:Crops, Agricultural / Q000235:genetics* / Q000378:metabolism; D019143:Evolution, Molecular; D018506:Gene Expression Regulation, Plant / Q000502:physiology*; D014158:Transcription, Genetic / Q000502:physiology*
chemical_list: D029681:Arabidopsis Proteins; D023081:CCAAT-Binding Factor
keywords: Arabidopsis; CONSTANS; Flowering; NF-Y; Rice; Temperate cereals