Isolation and expression analysis for <I>TOC1/APRR1</I> homologs in long day- and short day <I>Lemna</I> plants.
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- Ito Tomokazu
- Graduate School of Science, Nagoya Univ.,CREST
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- Miwa Kumiko
- Graduate School of Science, Nagoya Univ.,CREST
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- Kondo Takao
- Graduate School of Science, Nagoya Univ.,CREST
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- Oyama Tokitaka
- Graduate School of Science, Nagoya Univ.,CREST
Bibliographic Information
- Other Title
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- 光周性・概日時計関連遺伝子<I>TOC1/APRR1</I>ファミリーの長日ウキクサと短日ウキクサからのホモログ単離と発現解析
Abstract
In order to dissect the mechanism of photoperiodic flowering, we have begun molecular analysis using two Lemna species; Lemna gibba G3 and L. paucicostata 6746 show strict photoperiodism as long day- and short day plants, respectively. We have focused on TOC1/APRR1 homologs of each species. Arabidopsis TOC1/APRR1 is a major factor in the oscillation machinery of circadian clock. This nuclear protein shows a sequence similarity to response regulators in the His-to-Asp phosphorelay. Four other genes closely related to TOC1/APRR1 have been identified in Arabidopsis. These five members are circadianly expressed and their peak phases sequentially reach one by one, and they appear to be involved in circadian clock, photoperiodic flowering, and photomorphogenesis. We report the isolation of homologs, expression analysis, and comparison between the long day- and the short day Lemna plants. The relationship between their expression manners and photoperiods will be discussed.
Journal
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- Plant and Cell Physiology Supplement
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Plant and Cell Physiology Supplement 2003 (0), 44-44, 2003
The Japanese Society of Plant Physiologists
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Details 詳細情報について
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- CRID
- 1390001205627701632
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- NII Article ID
- 130006987968
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed