Late flowering phenotype under ultra-short photoperiod (USP) in <i>Arabidopsis thaliana</i>
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- Sugiyama Haruna
- Gene Research Center, University of Tsukuba
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- Natsui Yu
- Gene Research Center, University of Tsukuba
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- Hara Miyuki
- Gene Research Center, University of Tsukuba Department of Life Science, International Christian University
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- Miyata Kana
- Gene Research Center, University of Tsukuba
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- Nefissi Rim
- Gene Research Center, University of Tsukuba Laboratory of Plant Molecular Physiology, Center of Biotechnology
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- Mizoguchi Tsuyoshi
- Gene Research Center, University of Tsukuba Department of Life Science, International Christian University
Bibliographic Information
- Other Title
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- Late flowering phenotype under ultra-short photoperiod (USP) in Arabidopsis thaliana
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Abstract
Many environmental and endogenous factors affect flowering time of plants. In Arabidopsis, there are three major pathways for the control of flowering time; the photoperiod or long-day (LD) pathway, autonomous/vernalization pathway and gibberellic acid (GA) pathway. The flowering regulation under most common photoperiods in Arabidopsis involves some floral activators such as CONSTANS (CO) and GIGANTEA (GI) and a circadian clock protein, EARLY FLOWERING 3 (ELF3). In this work, we examined the effect of ultra-short photoperiod (USP) on flowering time of three accessions (Ler, Col and Ws). All the wild-type plants tested showed remarkable delay of flowering under 3 h or less photoperiods, but different sensitivity to the USP was found in these accessions. Late flowering phenotype of plants with mutations in genes involved in the three major pathways was enhanced under the USP. Expression of FLOWERING LOCUS T (FT) encoding a florigen decreased under the USP. A mutation in the ELF3 gene in Ler largely suppressed the delay of flowering under the USP. These results suggest that floral regulation pathway under the USP may be independent of the three well-characterized pathways. ELF3 may play a key role in the USP pathway.
Journal
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- Plant Biotechnology
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Plant Biotechnology 31 (1), 29-34, 2014
Japanese Society for Plant Biotechnology
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Details 詳細情報について
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- CRID
- 1390001204327105408
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- NII Article ID
- 130003391362
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- NII Book ID
- AA11250821
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- COI
- 1:CAS:528:DC%2BC2cXosVehtLc%3D
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- ISSN
- 13476114
- 13424580
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- NDL BIB ID
- 025356315
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed