|
Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Science / Faculty of Science >
Peer-reviewed Journal Articles, etc >
Regulatory mechanism of a heat-activated retrotransposon by DDR complex in Arabidopsis thaliana
This item is licensed under:Creative Commons Attribution 4.0 International
| Title: | Regulatory mechanism of a heat-activated retrotransposon by DDR complex in Arabidopsis thaliana |
| Authors: | Niu, Xiaoying Browse this author | | Chen, Lu Browse this author | | Kato, Atsushi Browse this author →KAKEN DB | | Ito, Hidetaka Browse this author →KAKEN DB |
| Keywords: | epigenetics | | transposons | | environmental stress | | Arabidopsis thaliana | | ONSEN |
| Issue Date: | 21-Dec-2022 |
| Publisher: | Frontiers |
| Journal Title: | Frontiers in Plant Science |
| Volume: | 13 |
| Start Page: | 1048957 |
| Publisher DOI: | 10.3389/fpls.2022.1048957 |
| Abstract: | The RNA-directed DNA methylation (RdDM) pathway plays an essential role in the transposon silencing mechanism; the DDR complex, consisting of DRD1, DMS3, and RDM1, is an essential component of the RdDM pathway. ONSEN, identified in Arabidopsis, is a retrotransposon activated by heat stress at 37°C; however, studies on the regulation of ONSEN are limited. In this study, we analyzed the regulation of ONSEN activity by the DDR complex in Arabidopsis. We elucidated that loss of any component of the DDR complex increased ONSEN transcript levels. Transgenerational transposition of ONSEN was observed in the DDR-complex mutants treated with heat stress for 48 h. Furthermore, the DDR complex components DRD1, DMS3, and RDM1 played independent roles in suppressing ONSEN transcription and transposition. Moreover, we found that the duration of heat stress affects ONSEN activity. Therefore, the results of this study provide new insights into the retrotransposon regulatory mechanisms of the DDR complex in the RdDM pathway. |
| Rights: | http://creativecommons.org/licenses/by/4.0/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/87785 |
| Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 伊藤 秀臣
|
