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Epigenetic Regulation of a Heat-Activated Retrotransposon in Cruciferous Vegetables


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タイトル: Epigenetic Regulation of a Heat-Activated Retrotransposon in Cruciferous Vegetables
著者: Nozawa, Kosuke 著作を一覧する
Kawagishi, Yuki 著作を一覧する
Kawabe, Akira 著作を一覧する
Sato, Mio 著作を一覧する
Masuta, Yukari 著作を一覧する
Kato, Atsushi 著作を一覧する
Ito, Hidetaka 著作を一覧する
キーワード: Heat stress
発行日: 2017年
誌名: Epigenomes
巻: 1
号: 1
開始ページ: 7
出版社 DOI: 10.3390/epigenomes1010007
抄録: 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 (
資料タイプ: article
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 伊藤 秀臣


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