Insights into Genetic Linkages of the Circadian Clock-Associated Genes, <I>CCA1</I>, <I>LHY</I>, and <I>TOC1</I> in <i>Arabidopsis thaliana</i>
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- Niwa Yusuke
- Laboratory of Molecular Microbiology, School of Agriculture, Nagoya University
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- Ito Shogo
- Laboratory of Molecular Microbiology, School of Agriculture, Nagoya University
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- Nakamichi Norihito
- Division of Biological Science, Graduate School of Science, Nagoya University
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- Mizoguchi Tsuyoshi
- Institute of Biological Sciences, University of Tsukuba
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- Niinuma Kanae
- Institute of Biological Sciences, University of Tsukuba
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- Yamashino Takafumi
- Laboratory of Molecular Microbiology, School of Agriculture, Nagoya University
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- Mizuno Takeshi
- Laboratory of Molecular Microbiology, School of Agriculture, Nagoya University
Bibliographic Information
- Other Title
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- シロイヌナズナにおける時計関連遺伝子<I>TOC1</I>,<I>CCA1</I>,<I>LHY</I>の三重欠損変異株
Abstract
In Arabidopsis thaliana, it is currently thought that the core circadian clock is composed of the CCA1/LHY and TOC1 gene-products, which together generate a fundamental circadian rhythm by forming a negative/positive transcriptional feedback loop. This intrinsic Arabidopsis clock plays roles in a variety of biological processes, which are common in higher plants. So far, nevertheless, no mutant lacking all these clock genes, CCA1, LHY, and TOC1, has yet been characterized. Here, we characterized for the first time such a cca1 lhy toc1 triple loss-of-function mutant with reference to the circadian clock-associated phenotypes, including, for instance, the photoperiodic control of flowering time and the light-regulated hypocotyl elongation. To gain insights into the molecular picture of plant clock, based on the results of this and other studies, a unified view as to the sophisticated genetic linkages among these clock-associated core genes will be proposed.
Journal
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- Plant and Cell Physiology Supplement
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Plant and Cell Physiology Supplement 2008 (0), 0497-0497, 2008
The Japanese Society of Plant Physiologists
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Details 詳細情報について
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- CRID
- 1390282680606685568
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- NII Article ID
- 130006990459
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- Data Source
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- JaLC
- CiNii Articles
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- Abstract License Flag
- Disallowed