The FLX Gene of Arabidopsis is Required for FRI-Dependent Activation of FLC Expression
| Autor: | David J. Bagnall, Trijntje Hughes, W. James Peacock, Elizabeth S. Dennis, Chris A. Helliwell, E. Jean Finnegan, Carol R. Andersson |
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| Rok vydání: | 2007 |
| Předmět: |
DNA
Bacterial Leucine zipper Time Factors animal structures Physiology Molecular Sequence Data Mutant Arabidopsis Repressor MADS Domain Proteins Flowers Plant Science Gene Expression Regulation Plant hemic and lymphatic diseases Flowering Locus C Amino Acid Sequence MADS-box Genetics Regulation of gene expression biology Arabidopsis Proteins fungi Genetic Variation food and beverages Cell Biology General Medicine Vernalization biology.organism_classification Mutation |
| Zdroj: | Plant and Cell Physiology. 49:191-200 |
| ISSN: | 1471-9053 0032-0781 |
| Popis: | The Arabidopsis FLOWERING LOCUS C (FLC) gene encodes a MADS box protein that acts as a dose-dependent repressor of flowering. Mutants and ecotypes with elevated expression of FLC are late flowering and vernalization responsive. In this study we describe an early flowering mutant in the C24 ecotype, flc expressor (flx), that has reduced expression of FLC. FLX encodes a protein of unknown function with putative leucine zipper domains. FLX is required for FRIGIDA (FRI)-mediated activation of FLC but not for activation of FLC in autonomous pathway mutants. FLX is also required for expression of the FLC paralogs MADS AFFECTING FLOWERING 1 (MAF1) and MAF2. |
| Databáze: | OpenAIRE |
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