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Characterization of a heat-activated retrotransposon in natural accessions of Arabidopsis thaliana

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タイトル: Characterization of a heat-activated retrotransposon in natural accessions of Arabidopsis thaliana
著者: Masuda, Seiji 著作を一覧する
Nozawa, Kosuke 著作を一覧する
Matsunaga, Wataru 著作を一覧する
Masuta, Yukari 著作を一覧する
Kawabe, Akira 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: Arabidopsis
heat stress
発行日: 2016年12月
出版者: 日本遺伝学会 (The Genetics Society of Japan)
誌名: Genes & Genetic Systems
巻: 91
号: 6
開始ページ: 293
終了ページ: 299
出版社 DOI: 10.1266/ggs.16-00045
抄録: Natural accessions are used for studying intraspecies genetic variation in the model plant Arabidopsis thaliana in order to address fundamental questions of evolution. Transposable elements are responsible for a wide range of mutations and play significant roles in shaping a genome over evolutionary time. In the present study, we aimed to characterize ONSEN, a heat-activated long terminal repeat (LTR) retrotransposon, in natural A. thaliana accessions. Southern blot analysis demonstrated that ONSEN was present in all the studied accessions, but the copy number was diverse. Olympia-1 contained a single ONSEN copy, located in the centromere of Chromosome 3. The stop codons in Olympia-1 ONSEN presumably abolish integrase activity, which in turn presumably renders the retrotransposon non-functional. Hybridization of Col-0 with Olympia-1 showed that several ONSEN copies in Col-0 were activated by heat stress and maintained their transpositional activity in the progeny.
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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