ArticleBMC plant biology2010
Does the core circadian clock in the moss Physcomitrella patens (Bryophyta) comprise a single loop?
Article in BMC plant biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.
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30 citing papers in PubMed, 81 citations in OpenAlex.
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- The evolution and function of the PSEUDO RESPONSE REGULATOR gene family in the plant circadian clock.Genetics and molecular biology · 2022Article
- Regulation of gametangia and gametangiophore initiation in the liverwort Marchantia polymorpha.Plant reproduction · 2021Review
- Underwater CAM photosynthesis elucidated by Isoetes genome.Nature communications · 2021Article
- Nyctinastic thallus movement in the liverwort Marchantia polymorpha is regulated by a circadian clock.Scientific reports · 2020Article
- Dynamics of the Transcriptome Response to Heat in the Moss, Physcomitrella patens.International journal of molecular sciences · 2020Article
- Article
- Early evolution of the land plant circadian clock.The New phytologist · 2017Article
- Characterization of Phytochrome Interacting Factors from the MossThe Plant cell · 2017Article
- Metabolic Adaptation, a Specialized Leaf Organ Structure and Vascular Responses to Diurnal NFrontiers in plant science · 2017Article
- Circadian rhythms have significant effects on leaf-to-canopy scale gas exchange under field conditions.GigaScience · 2016Article
- Diversity of plant circadian clocks: Insights from studies of Chlamydomonas reinhardtii and Physcomitrella patens.Plant signaling & behavior · 2016Article
- Evolutionary relationships among barley and Arabidopsis core circadian clock and clock-associated genes.Journal of molecular evolution · 2015Article
- Phototropism in gametophytic shoots of the moss Physcomitrella patens.Plant signaling & behavior · 2015Article
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe endogenous circadian clock allows the organism to synchronize processes both to daily and seasonal changes. In plants, many metabolic processes such as photosynthesis, as well as photoperiodic responses, are under the control of a circadian clock. Comparative studies with the moss Physcomitrella patens provide the opportunity to study many aspects of land plant evolution. Here we present a comparative overview of clock-associated components and the circadian network in the moss P. patens.
resultsThe moss P. patens has a set of conserved circadian core components that share genetic relationship and gene expression patterns with clock genes of vascular plants. These genes include Myb-like transcription factors PpCCA1a and PpCCA1b, pseudo-response regulators PpPRR1-4, and regulatory elements PpELF3, PpLUX and possibly PpELF4. However, the moss lacks homologs of AtTOC1, AtGI and the AtZTL-family of genes, which can be found in all vascular plants studied here. These three genes constitute essential components of two of the three integrated feed-back loops in the current model of the Arabidopsis circadian clock mechanism. Consequently, our results suggest instead a single loop circadian clock in the moss. Possibly as a result of this, temperature compensation of core clock gene expression appears to be decreased in P. patens.
conclusionsThis study is the first comparative overview of the circadian clock mechanism in a basal land plant, the moss P. patens. Our results indicate that the moss clock mechanism may represent an ancestral state in contrast to the more complex and partly duplicated structure of subsequent land plants. These findings may provide insights into the understanding of the evolution of circadian network topology.
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