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Synchronisation of Arabidopsis flowering time and whole-plant senescence in seasonal environments
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- Miryeganeh, Matin
- Center for Ecological Research, Kyoto University・Okinawa Institute of Science and Technology Graduate University
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- Yamaguchi, Masaki
- Center for Ecological Research, Kyoto University
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- Kudoh, Hiroshi
- Center for Ecological Research, Kyoto University
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Description
Synchronisation of flowering phenology has often been observed between individuals within plant species. We expected that a critical role of flowering-time control under natural conditions is a phenological synchronisation. However, no studies have quantified the level of synchronisation of reproductive timing relative to germination timing under natural conditions. In a sequential seeding experiment (SSE) in which we manipulated the germination timing of Arabidopsis thaliana accessions, we developed a quantification index to evaluate reproductive synchrony in annual plants. In the SSE, we identified a novel phenomenon of reproductive synchrony: senescence synchrony. The role of vernalisation in realising flowering synchrony between plants of different ages under natural conditions was demonstrated by synchronisation and de-synchronisation of flowering initiation in vernalisation-sensitive and less-vernalisation-sensitive accessions, respectively. We also observed up-regulation of senescence-related genes at corresponding times. The approach we developed in this study provides a set of concepts and procedures that can be used to study reproductive synchrony experimentally under natural conditions.
Journal
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- Scientific Reports
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Scientific Reports 8 10282-, 2018-07-06
Springer Nature
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Keywords
Details 詳細情報について
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- CRID
- 1050001338207616512
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- NII Article ID
- 120006502584
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- ISSN
- 20452322
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- HANDLE
- 2433/234089
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- PubMed
- 29980723
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- IRDB
- Crossref
- CiNii Articles
- OpenAIRE