Title: | A Stress-Activated Transposon in Arabidopsis Induces Transgenerational Abscisic Acid Insensitivity |
Authors: | Ito, Hidetaka Browse this author →KAKEN DB |
Kim, Jong-Myong Browse this author |
Matsunaga, Wataru Browse this author |
Saze, Hidetoshi Browse this author |
Matsui, Akihiro Browse this author |
Endo, Takaho A. Browse this author |
Harukawa, Yoshiko Browse this author |
Takagi, Hiroki Browse this author |
Yaegashi, Hiroki Browse this author |
Masuta, Yukari Browse this author |
Masuda, Seiji Browse this author |
Ishida, Junko Browse this author |
Tanaka, Maho Browse this author |
Takahashi, Satoshi Browse this author |
Morosawa, Taeko Browse this author |
Toyoda, Tetsuro Browse this author |
Kakutani, Tetsuji Browse this author |
Kato, Atsushi Browse this author →KAKEN DB |
Seki, Motoaki Browse this author |
Issue Date: | 16-Mar-2016 |
Publisher: | Nature Publishing Group |
Journal Title: | Scientific reports |
Volume: | 6 |
Start Page: | 23181 |
Publisher DOI: | 10.1038/srep23181 |
Abstract: | Transposable elements (TEs), or transposons, play an important role in adaptation. TE insertion can affect host gene function and provides a mechanism for rapid increases in genetic diversity, particularly because many TEs respond to environmental stress. In the current study, we show that the transposition of a heat-activated retrotransposon, ONSEN, generated a mutation in an abscisic acid (ABA) responsive gene, resulting in an ABA-insensitive phenotype in Arabidopsis, suggesting stress tolerance. Our results provide direct evidence that a transposon activated by environmental stress could alter the genome in a potentially positive manner. Furthermore, the ABA-insensitive phenotype was inherited when the transcription was disrupted by an ONSEN insertion, whereas ABA sensitivity was recovered when the effects of ONSEN were masked by IBM2. These results suggest that epigenetic mechanisms in host plants typically buffered the effect of a new insertion, but could selectively "turn on" TEs when stressed. |
Rights: | http://creativecommons.org/licenses/by/4.0/ |
Type: | article |
URI: | http://hdl.handle.net/2115/61571 |
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)
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