Dynamical differential expression (DyDE) reveals the period control mechanisms of the Arabidopsis circadian oscillator.

The circadian oscillator, an internal time-keeping device found in most organisms, enables timely regulation of daily biological activities by maintaining synchrony with the external environment. The mechanistic basis underlying the adjustment of circadian rhythms to changing external conditions, ho...

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Main Authors: Laurent Mombaerts, Alberto Carignano, Fiona C Robertson, Timothy J Hearn, Jin Junyang, David Hayden, Zoe Rutterford, Carlos T Hotta, Katherine E Hubbard, Marti Ruiz C Maria, Ye Yuan, Matthew A Hannah, Jorge Goncalves, Alex A R Webb
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2019-01-01
Series:PLoS Computational Biology
Online Access:http://europepmc.org/articles/PMC6377142?pdf=render
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author Laurent Mombaerts
Alberto Carignano
Fiona C Robertson
Timothy J Hearn
Jin Junyang
David Hayden
Zoe Rutterford
Carlos T Hotta
Katherine E Hubbard
Marti Ruiz C Maria
Ye Yuan
Matthew A Hannah
Jorge Goncalves
Alex A R Webb
author_facet Laurent Mombaerts
Alberto Carignano
Fiona C Robertson
Timothy J Hearn
Jin Junyang
David Hayden
Zoe Rutterford
Carlos T Hotta
Katherine E Hubbard
Marti Ruiz C Maria
Ye Yuan
Matthew A Hannah
Jorge Goncalves
Alex A R Webb
author_sort Laurent Mombaerts
collection DOAJ
description The circadian oscillator, an internal time-keeping device found in most organisms, enables timely regulation of daily biological activities by maintaining synchrony with the external environment. The mechanistic basis underlying the adjustment of circadian rhythms to changing external conditions, however, has yet to be clearly elucidated. We explored the mechanism of action of nicotinamide in Arabidopsis thaliana, a metabolite that lengthens the period of circadian rhythms, to understand the regulation of circadian period. To identify the key mechanisms involved in the circadian response to nicotinamide, we developed a systematic and practical modeling framework based on the identification and comparison of gene regulatory dynamics. Our mathematical predictions, confirmed by experimentation, identified key transcriptional regulatory mechanisms of circadian period and uncovered the role of blue light in the response of the circadian oscillator to nicotinamide. We suggest that our methodology could be adapted to predict mechanisms of drug action in complex biological systems.
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spelling doaj.art-19c9bf8d43ae49adab43eb86c2a2c2402022-12-22T03:16:14ZengPublic Library of Science (PLoS)PLoS Computational Biology1553-734X1553-73582019-01-01151e100667410.1371/journal.pcbi.1006674Dynamical differential expression (DyDE) reveals the period control mechanisms of the Arabidopsis circadian oscillator.Laurent MombaertsAlberto CarignanoFiona C RobertsonTimothy J HearnJin JunyangDavid HaydenZoe RutterfordCarlos T HottaKatherine E HubbardMarti Ruiz C MariaYe YuanMatthew A HannahJorge GoncalvesAlex A R WebbThe circadian oscillator, an internal time-keeping device found in most organisms, enables timely regulation of daily biological activities by maintaining synchrony with the external environment. The mechanistic basis underlying the adjustment of circadian rhythms to changing external conditions, however, has yet to be clearly elucidated. We explored the mechanism of action of nicotinamide in Arabidopsis thaliana, a metabolite that lengthens the period of circadian rhythms, to understand the regulation of circadian period. To identify the key mechanisms involved in the circadian response to nicotinamide, we developed a systematic and practical modeling framework based on the identification and comparison of gene regulatory dynamics. Our mathematical predictions, confirmed by experimentation, identified key transcriptional regulatory mechanisms of circadian period and uncovered the role of blue light in the response of the circadian oscillator to nicotinamide. We suggest that our methodology could be adapted to predict mechanisms of drug action in complex biological systems.http://europepmc.org/articles/PMC6377142?pdf=render
spellingShingle Laurent Mombaerts
Alberto Carignano
Fiona C Robertson
Timothy J Hearn
Jin Junyang
David Hayden
Zoe Rutterford
Carlos T Hotta
Katherine E Hubbard
Marti Ruiz C Maria
Ye Yuan
Matthew A Hannah
Jorge Goncalves
Alex A R Webb
Dynamical differential expression (DyDE) reveals the period control mechanisms of the Arabidopsis circadian oscillator.
PLoS Computational Biology
title Dynamical differential expression (DyDE) reveals the period control mechanisms of the Arabidopsis circadian oscillator.
title_full Dynamical differential expression (DyDE) reveals the period control mechanisms of the Arabidopsis circadian oscillator.
title_fullStr Dynamical differential expression (DyDE) reveals the period control mechanisms of the Arabidopsis circadian oscillator.
title_full_unstemmed Dynamical differential expression (DyDE) reveals the period control mechanisms of the Arabidopsis circadian oscillator.
title_short Dynamical differential expression (DyDE) reveals the period control mechanisms of the Arabidopsis circadian oscillator.
title_sort dynamical differential expression dyde reveals the period control mechanisms of the arabidopsis circadian oscillator
url http://europepmc.org/articles/PMC6377142?pdf=render
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