Journal
CHAOS
Volume 20, Issue 4, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3530118
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Funding
- ANR [07BSYS004]
- CNRS
- French Ministry of Higher Education and Research
- Nord-Pas de Calais Regional Council
- FEDER
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The microscopic green alga Ostreococcus tauri is rapidly emerging as a promising model organism in the green lineage. In particular, recent results by Corellou et al. [Plant Cell 21, 3436 (2009)] and Thommen et al. [PLOS Comput. Biol. 6, e1000990 (2010)] strongly suggest that its circadian clock is a simplified version of Arabidopsis thaliana clock, and that it is architectured so as to be robust to natural daylight fluctuations. In this work, we analyze the time series data from luminescent reporters for the two central clock genes TOC1 and CCA1 and correlate them with microarray data previously analyzed. Our mathematical analysis strongly supports both the existence of a simple two-gene oscillator at the core of Ostreococcus tauri clock and the fact that its dynamics is not affected by light in normal entrainment conditions, a signature of its robustness. (C) 2010 American Institute of Physics. [doi:10.1063/1.3530118]
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