Evolutionary conservation of the FLOWERING LOCUS C-mediated vernalization response: evidence from the sugar beet (Beta vulgaris).

Evolutionary conservation of the FLOWERING LOCUS C-mediated vernalization response: evidence from the sugar beet (Beta vulgaris). Research Abstract Details 

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Evolutionary conservation of the FLOWERING LOCUS C-mediated vernalization response: evidence from the sugar beet (Beta vulgaris). Abstract Text:

Patrick A Reeves,Yuehui He,Robert J Schmitz,Richard M Amasino,Lee W Panella,Christopher M Richards,

In many plant species, exposure to a prolonged period of cold during the winter promotes flowering in the spring, a process termed vernalization. In Arabidopsis thaliana, the vernalization requirement of winter-annual ecotypes is caused by the MADS-box gene FLOWERING LOCUS C (FLC), which is a repressor of flowering. During the vernalization process, FLC is downregulated by alteration of its chromatin structure, thereby permitting flowering to occur. In wheat, a vernalization requirement is imposed by a different repressor of flowering, suggesting that some components of the regulatory network controlling the vernalization response differ between monocots and dicots. The extent to which the molecular mechanisms underlying vernalization have been conserved during the diversification of the angiosperms is not well understood. Using phylogenetic analysis, we identified homologs of FLC in species representing the three major eudicot lineages. FLC homologs have not previously been documented outside the plant family Brassicaceae. We show that the sugar beet FLC homolog BvFL1 functions as a repressor of flowering in transgenic Arabidopsis and is downregulated in response to cold in sugar beet. Cold-induced downregulation of an FLC-like floral repressor may be a central feature of the vernalization response in at least half of eudicot species.

Evolutionary conservation of the FLOWERING LOCUS C-mediated vernalization response: evidence from the sugar beet (Beta vulgaris). Publishing Authors By Initials

PA Reeves,Y He,RJ Schmitz,RM Amasino,LW Panella,CM Richards,

For similar biochemical phenomena, metabolism, and nutrition: biochemical phenomena: sequence homology: sequence homology, amino acid research abstracts see: biochemical phenomena, metabolism, and nutrition: biochemical phenomena: sequence homology: sequence homology, amino acid research

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Evolutionary conservation of the FLOWERING LOCUS C-mediated vernalization response: evidence from the sugar beet (Beta vulgaris). Journal Published:

PUBLICATION TYPE: Research Support, U.S. Gov't,

Journal: Genetics

VOLUME: 176

Page Numbers: 295-307

Journal Abbreviation: Genetics

ISSN: 0016-6731

DAY: 18

MONTH: 12

YEAR: 2006

Evolutionary conservation of the FLOWERING LOCUS C-mediated vernalization response: evidence from the sugar beet (Beta vulgaris). Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 374636

Evolutionary conservation of the FLOWERING LOCUS C-mediated vernalization response: evidence from the sugar beet (Beta vulgaris). Keywords Mesh Terms:

KEYWORDS: Sequence Homology, Amino Acid

MESH TERMS: metabolism

Chemical & Substance for Abstract: Evolutionary conservation of the FLOWERING LOCUS C-mediated vernalization response: evidence from the sugar beet (Beta vulgaris). Information

Substance Name: Repressor Proteins

Registry Number: 0

Grant and Affiliation Information for Evolutionary conservation of the FLOWERING LOCUS C-mediated vernalization response: evidence from the sugar beet (Beta vulgaris).

AFFILIATION: United States Department of Agriculture, Agricultural Research Service, National Center for Genetic Resources Preservation, Fort Collins, Colorado 80521, USA.

Country: United States

AGENCY: United States NIGMS

GRANT: 5 T32 GM07133

ACRONYM: GM

MEDLINETA: Genetics

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