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Epigenetic Regulation of a Heat-Activated Retrotransposon in Cruciferous Vegetables
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Title: | Epigenetic Regulation of a Heat-Activated Retrotransposon in Cruciferous Vegetables |
Authors: | Nozawa, Kosuke Browse this author | Kawagishi, Yuki Browse this author | Kawabe, Akira Browse this author | Sato, Mio Browse this author | Masuta, Yukari Browse this author | Kato, Atsushi Browse this author →KAKEN DB | Ito, Hidetaka Browse this author →KAKEN DB |
Keywords: | Heat stress | cruciferae | ONSEN | retrotransposon |
Issue Date: | 2017 |
Journal Title: | Epigenomes |
Volume: | 1 |
Issue: | 1 |
Start Page: | 7 |
Publisher DOI: | 10.3390/epigenomes1010007 |
Abstract: | Transposable elements (TEs) are highly abundant in plant genomes. Environmental stress is one of the critical stimuli that activate TEs. We analyzed a heat-activated retrotransposon, named ONSEN, in cruciferous vegetables. Multiple copies of ONSEN-like elements (OLEs) were found in all of the cruciferous vegetables that were analyzed. The copy number of OLE was high in Brassica oleracea, which includes cabbage, cauliflower, broccoli, Brussels sprout, and kale. Phylogenic analysis demonstrated that some OLEs transposed after the allopolyploidization of parental Brassica species. Furthermore, we found that the high copy number of OLEs in B. oleracea appeared to induce transpositional silencing through epigenetic regulation, including DNA methylation. The results of this study would be relevant to the understanding of evolutionary adaptations to thermal environmental stress in different species. |
Rights: | © 2017 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/). | https://creativecommons.org/licenses/by/4.0/ |
Type: | article |
URI: | http://hdl.handle.net/2115/66128 |
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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Submitter: 伊藤 秀臣
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