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>

DOI
  • Niwa Yusuke
    Laboratory of Molecular Microbiology, School of Agriculture, Nagoya University
  • Ito Shogo
    Laboratory of Molecular Microbiology, School of Agriculture, Nagoya University
  • Nakamichi Norihito
    Division of Biological Science, Graduate School of Science, Nagoya University
  • Mizoguchi Tsuyoshi
    Institute of Biological Sciences, University of Tsukuba
  • Niinuma Kanae
    Institute of Biological Sciences, University of Tsukuba
  • Yamashino Takafumi
    Laboratory of Molecular Microbiology, School of Agriculture, Nagoya University
  • Mizuno Takeshi
    Laboratory of Molecular Microbiology, School of Agriculture, Nagoya University

Bibliographic Information

Other Title
  • 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

Details 詳細情報について

  • CRID
    1390282680606685568
  • NII Article ID
    130006990459
  • DOI
    10.14841/jspp.2008.0.0497.0
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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