|
Flowering time regulatory network controlled by FLOWERING LOCUS C (FLC) in response to temperature changes |
|---|---|
| รหัสดีโอไอ | |
| Title | Flowering time regulatory network controlled by FLOWERING LOCUS C (FLC) in response to temperature changes |
| Creator | 1. Philip A Wigge 2. Varodom Charoensawan |
| Contributor | Jutapak Jenkitkonchai, Poppy Marriott, Weibing Yang, Napaporn Sriden, Jaehoon Jung |
| Publisher | The Thai Society for Biotechnology |
| Publication Year | 2562 |
| Keyword | Variable temperature, FLC, Flowering, Arabidopsis thaliana |
| Abstract | The global temperature has been fluctuating drastically due to global warming. This has major effects on living organisms around the world, especially in sessile organism such as plants. In flowering plants, initiation of flowering is a crucial developmental event, which requires both internal and environmental signals to determine when floral transition should occur, in order to maximize reproductive success. One of the key environmental signals that determine flowering time is ambient temperature. In this study, we aimed to investigate the influence on flowering of daily variable temperature, where temperature fluctuates throughout the day, in selected Arabidopsis accessions with different alleles of the key flowering regulators, FLOWERING LOCUS C (FLC) and FRIGIDA (FRI), namely Col-0, C24 and their late flowering hybrid, C24xCol-0. Our result showed that Col-0, C24 and C24xCol-0 grown in a constant ambient temperature flowered later than those grown in a variable temperature mimicking daily fluctuation in both wild-types and late flowering hybrid. Besides, we have explored the connection between FLC and its up- and downstream regulatory genes, in response to temperature changes, using publicly available data. The transcriptional changes of flowering genes were observed as a result of a temperature shift, which were combined with an FLC- associated flowering time regulatory network to reveal the transcriptional dynamics in temperature shift conditions. The network can be further expanded to cover other flowering genes and thus provide more comprehensive model of expression dynamics of flowering genes in response to temperature changes. |
| Language | EN |
| URL Website | http://tsb2019.com/ |
| Website title | The 31st Annual Meeting of the Thai Society for Biotechnology and International Conference (TSB 2019) |
