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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 406 - 417 (12page)
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RICE FLOWERING LOCUS T 1 (RFT1) is a major florigen that functions to induce reproductive development in the shoot apical meristem (SAM). To further our study of RFT1, we overexpressed the gene and examined the expression patterns of major regulatory genes during floral transition and inflorescence development. Overexpression induced extremely early flowering in the transgenics, and a majority of those calli directly formed spikelets with a few spikelets, thus bypassing normal vegetative development. FRUITFULL (FUL)-clade genes OsMADS14, OsMADS15, and OsMADS18 were highly induced in the RFT1-expressing meristems. Os-MADS34 was also induced in the meristems. This indicated that RFT1 promotes the expression of major regulatory genes that are important for inflorescence development. RFT1 overexpression also induced SEPALLATA (SEP)-clade genes OsMADS1, OsMADS5, and OsMADS7 in the greening calli before floral transition occurred. This suggested their possible roles at the early reproductive stages. We found it interesting that expression of OsFD1 as well as OsFD2 and OsFD3 was strongly increased in the RFT1-expressing calli and spikelets. At a low frequency, those calli produced plants with a few leaves that generated a panicle with a small number of spikelets. In the transgenic leaves, the FULclade genes and OsMADS34 were induced, but SEP-clade gene expression was not increased. This indicated that Os-MADS14, OsMADS15, OsMADS18, and OsMADS34 act immediately downstream of RFT1.
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참고문헌 (34)
참고문헌 신청
Abe, M. / 2005 / FD, a bZIP protein mediating signals from the fioral pathway integrator FT at the shoot apex / Science 309:1052~1056
An, G. / 1989 / Binary vectors. In Plant molecular biology manual / Kluwer :1~19
Brambilla, V. / 2017 / Antagonistic transcription factor complexes modulate the floral transition in rice / Plant Cell 29:2801~2816
Cohen Y. / 2008 / Statistics and Data with R: An applied approach through examples / John Willey and Sons, Ltd :599
Cho, L. H. / 2016 / Homodimerization of Ehd1 is required to induce flowering in rice / Plant Physiol 170:2159~2171
An, G. / 1989 / Binary vectors. In Plant molecular biology manual / Kluwer :1~19
Brambilla, V. / 2017 / Antagonistic transcription factor complexes modulate the floral transition in rice / Plant Cell 29:2801~2816
Cohen Y. / 2008 / Statistics and Data with R: An applied approach through examples / John Willey and Sons, Ltd :599
Cho, L. H. / 2016 / Homodimerization of Ehd1 is required to induce flowering in rice / Plant Physiol 170:2159~2171
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