A5006186224- Plant Molecular Biology Research
- Plant Reproductive Biology
- Plant Gene Expression Analysis
- Photosynthetic Processes and Mechanisms
- RNA Research and Splicing
- Genomics and Chromatin Dynamics
Seoul National University
2015-2024
Institute for Basic Science
2017-2018
Significance The Arabidopsis DEMETER (DME) DNA demethylase is required for reproduction and endosperm gene imprinting. We investigated mechanisms that restrict DME transcription to the female male companion cells, central vegetative adjacent egg sperm respectively. delineated a region, surprisingly within gene, sufficient proper expression, which rescues seed abortion aberrant methylation associated with dme mutations. discovered overlapping enhancers promoting cell can be used pinpoint...
TATA-binding protein-associated factors (TAFs) are general transcription within the factor IID (TFIID) complex, which recognizes core promoter of genes. In addition to their biochemical function, it is known that several TAFs involved in regulation developmental processes. this study, we found TAF15b affects flowering time, especially through autonomous pathway (AP) Arabidopsis. The mutant taf15b shows late compared with wild type plant during both long and short days, vernalization...
Abstract Arabidopsis TBP-ASSOCIATED FACTOR15b (TAF15b) is a plant-specific component of the transcription factor IID (TFIID) complex. TAF15b involved in autonomous pathway for flowering and represses FLOWERING LOCUS C (FLC) , strong floral repressor Arabidopsis. Although components have been studied extensively, little known about functional partners mechanism how works. Here, we show that C-TERMINAL DOMAIN PHOSPHATASE-LIKE 1 (CPL1) physical partner transcriptional repression FLC. CPL1...
The autonomous pathway promotes flowering by repressing a major repressor, FLOWERING LOCUS C (FLC). Approximately 30 genes are involved in this pathway, and several of them related to RNA processing; however, the molecular basis transcriptional regulation FLC is yet be understood. Recently, we discovered new gene, TATA-binding protein-associated factor 15b (TAF15b), which has recognition motif (RRM) represses level transcripts. TAF15b regulates expression directly interacting with polymerase...