VASCULAR PLANT ONE-ZINC FINGER1 and VOZ2 repress the FLOWERING LOCUS C clade members to control flowering time in Arabidopsis
Copyright policy )VASCULAR PLANT ONE-ZINC FINGER1 and VOZ2 repress the FLOWERING LOCUS C clade members to control flowering time in Arabidopsis
Abstract Floral transition is regulated by environmental and endogenous signals. Previously, we identified VASCULAR PLANT ONE-ZINC FINGER1 (VOZ1) and VOZ2 as phytochrome B-interacting factors. VOZ1 and VOZ2 redundantly promote flowering and have pivotal roles in the downregulation of FLOWERING LOCUS C (FLC), a central repressor of flowering in Arabidopsis. Here, we showed that the late-flowering phenotypes of the voz1 voz2 mutant were suppressed by vernalization in the Columbia and FRIGIDA (FRI)-containing accessions, which indicates that the late-flowering phenotype of voz1 voz2 mutants was caused by upregulation of FLC. We also showed that the other FLC clade members, MADS AFFECTING FLOWERING (MAF) genes, were also a downstream target of VOZ1 and VOZ2 as their expression levels were also increased in the voz1 voz2 mutant. Our results suggest that the FLC clade genes integrate signals from VOZ1/VOZ2 and vernalization to regulate flowering.
- University of Tokyo Japan
- Kyoto University Japan
Arabidopsis thaliana, FLOWERING LOCUS C (FLC), Transcription Factors/genetics, Arabidopsis, MADS Domain Proteins, VASCULAR PLANT ONE-ZINC FINGER (VOZ), Flowers, MADS Domain Proteins/genetics, Gene Expression Regulation, Plant, Arabidopsis/growth & development, Transcription Factors/metabolism, Arabidopsis/genetics, Flowers/genetics, flowering, MADS Domain Proteins/metabolism, Arabidopsis Proteins, Gene Expression Profiling, RNA-Binding Proteins, Arabidopsis Proteins/drug effects, Plant, phytochrome B (phyB), RNA-Binding Proteins/drug effects, Arabidopsis Proteins/genetics, Gene Expression Regulation, Mutation, Arabidopsis Proteins/metabolism, Transcription Factors
Arabidopsis thaliana, FLOWERING LOCUS C (FLC), Transcription Factors/genetics, Arabidopsis, MADS Domain Proteins, VASCULAR PLANT ONE-ZINC FINGER (VOZ), Flowers, MADS Domain Proteins/genetics, Gene Expression Regulation, Plant, Arabidopsis/growth & development, Transcription Factors/metabolism, Arabidopsis/genetics, Flowers/genetics, flowering, MADS Domain Proteins/metabolism, Arabidopsis Proteins, Gene Expression Profiling, RNA-Binding Proteins, Arabidopsis Proteins/drug effects, Plant, phytochrome B (phyB), RNA-Binding Proteins/drug effects, Arabidopsis Proteins/genetics, Gene Expression Regulation, Mutation, Arabidopsis Proteins/metabolism, Transcription Factors
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