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The Transcriptional Network in the Arabidopsis Circadian Clock System
The circadian clock is the biological timekeeping system that governs the approximately 24-h rhythms of genetic, metabolic, physiological and behavioral processes in most organisms. This oscillation allows organisms to anticipate and adapt to day–night changes in the environment. Molecular studies h...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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MDPI
2020
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7692566/ https://www.ncbi.nlm.nih.gov/pubmed/33138078 http://dx.doi.org/10.3390/genes11111284 |
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author | Nakamichi, Norihito |
author_facet | Nakamichi, Norihito |
author_sort | Nakamichi, Norihito |
collection | PubMed |
description | The circadian clock is the biological timekeeping system that governs the approximately 24-h rhythms of genetic, metabolic, physiological and behavioral processes in most organisms. This oscillation allows organisms to anticipate and adapt to day–night changes in the environment. Molecular studies have indicated that a transcription–translation feedback loop (TTFL), consisting of transcriptional repressors and activators, is essential for clock function in Arabidopsis thaliana (Arabidopsis). Omics studies using next-generation sequencers have further revealed that transcription factors in the TTFL directly regulate key genes implicated in clock-output pathways. In this review, the target genes of the Arabidopsis clock-associated transcription factors are summarized. The Arabidopsis clock transcriptional network is partly conserved among angiosperms. In addition, the clock-dependent transcriptional network structure is discussed in the context of plant behaviors for adapting to day–night cycles. |
format | Online Article Text |
id | pubmed-7692566 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-76925662020-11-28 The Transcriptional Network in the Arabidopsis Circadian Clock System Nakamichi, Norihito Genes (Basel) Review The circadian clock is the biological timekeeping system that governs the approximately 24-h rhythms of genetic, metabolic, physiological and behavioral processes in most organisms. This oscillation allows organisms to anticipate and adapt to day–night changes in the environment. Molecular studies have indicated that a transcription–translation feedback loop (TTFL), consisting of transcriptional repressors and activators, is essential for clock function in Arabidopsis thaliana (Arabidopsis). Omics studies using next-generation sequencers have further revealed that transcription factors in the TTFL directly regulate key genes implicated in clock-output pathways. In this review, the target genes of the Arabidopsis clock-associated transcription factors are summarized. The Arabidopsis clock transcriptional network is partly conserved among angiosperms. In addition, the clock-dependent transcriptional network structure is discussed in the context of plant behaviors for adapting to day–night cycles. MDPI 2020-10-29 /pmc/articles/PMC7692566/ /pubmed/33138078 http://dx.doi.org/10.3390/genes11111284 Text en © 2020 by the author. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Review Nakamichi, Norihito The Transcriptional Network in the Arabidopsis Circadian Clock System |
title | The Transcriptional Network in the Arabidopsis Circadian Clock System |
title_full | The Transcriptional Network in the Arabidopsis Circadian Clock System |
title_fullStr | The Transcriptional Network in the Arabidopsis Circadian Clock System |
title_full_unstemmed | The Transcriptional Network in the Arabidopsis Circadian Clock System |
title_short | The Transcriptional Network in the Arabidopsis Circadian Clock System |
title_sort | transcriptional network in the arabidopsis circadian clock system |
topic | Review |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7692566/ https://www.ncbi.nlm.nih.gov/pubmed/33138078 http://dx.doi.org/10.3390/genes11111284 |
work_keys_str_mv | AT nakamichinorihito thetranscriptionalnetworkinthearabidopsiscircadianclocksystem AT nakamichinorihito transcriptionalnetworkinthearabidopsiscircadianclocksystem |