2013 Fiscal Year Final Research Report
Exploration of ancestral roles life-cycle regulator genes in land plants using a model liverwort
| Project/Area Number |
23370022
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Plant molecular biology/Plant physiology
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| Research Institution | Kyoto University |
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Principal Investigator |
ARAKI Takashi 京都大学, 生命科学研究科, 教授 (00273433)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 苔類植物 / ゼニゴケ / 基部陸上植物 / 生活環制御 / 発生 / 生殖成長 / 環境応答 / トランスクリプトーム |
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| Research Abstract |
Ancestral roles of four class of life-cycle regulators in angiosperms (LFY, MADS, PEBP, SPL) were explored using an emerging model liverwort plant, Marchantia polymorpha, as a representative of basal land plants. In Marchantia polymorpha genome, 1 gene for LFY, 2 genes for MADS, 3 genes for PEBP, and 4 genes for SPL were found. Through phenotype analysis of knock-out plants and expression profile analysis, it is suggested that (1) LFY and two SPLs are involved in gametangiophore induction and/or subsequent development in gametophyte (haploid) generation, (2) LFY is indispensable for the first zygotic division after fertilization, and (3) all three PEBPs are likely involved in regulation of dormancy of asexual propagules called gemmae in gametophyte (haploid) generation.
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[Journal Article] Phloem long-distance delivery of FLOWERING LOCUS T (FT) to the apex2013
Author(s)
Yoo, S.-C., Chen, C., Rojas, M., Daimon, Y., Ham, B.-K., Araki, T., and Lucas, W.
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Journal Title
Plant Journal
Volume: 75
Pages: 456-468
DOI
Peer Reviewed
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[Journal Article] BRANCHED1 interacts with FLOWERING LOCUS T to repress the floral transition of the axillary meristems in Arabidopsis2013
Author(s)
Niwa, M., Daimon, Y., Kurotani, K., Higo, A., Pruneda-Paz, J.L., Breton, G., Mitsuda, N., Kay, S.A., Ohme-Takagi, M., Endo, M., and Araki, T.
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Journal Title
Plant Cell
Volume: 25
Pages: 1228-1242
DOI
Peer Reviewed
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[Journal Article] CRYPTIC PRECOCIOUS/MED1 2 is a novel flowering regulator with multiple target steps in Arabidopsis2012
Author(s)
Imura, Y., Kobayashi, Y., Yamamoto, S., Furutani, M., Tasaka, M., Abe, M., and Araki, T.
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Journal Title
Plant & Cell Physiology
Volume: 53
Pages: 287-303
DOI
Peer Reviewed
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[Journal Article] The TFL1 homologue KSN is a regulator of continuous flowering in rose and strawberry2012
Author(s)
Iwata, H., Gaston, A., Remay, A., Thouroude, T., Jeauffre, J., Kawamura, K., Oyant, L.H., Araki, T., Denoyes, B., and Foucher, F.
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Journal Title
Plant Journal
Volume: 69
Pages: 116-125
DOI
Peer Reviewed
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