Os06g0157500
The rice Os06g0157500 was reported as RFT1 in 2009 [1] by researchers from China.
Contents
Annotated Information
Fig.2 A model for the photoperiodic control of flowering in rice. (from reference[1]).
Gene Symbol
- Os06g0157500 <=> OsFTL3, OsRFT1, RFT
Function
- RFT1 promotes flowering in the absence of Hd3a, and that both Hd3a and RFT1 are essential for flowering under SD conditions. [1].
- RFT1 is essential for LD flowering.
- Both positive (OsMADS50 and Ehd1) and negative (Hd1, phyB and Ghd7) regulators of RFT1 form a gene network that regulates LD flowering in rice.
Mutation
- Mutants in OsMADS50, a rice ortholog of Arabidopsis SUPPRESOR OF OVEREXPRESSION OF CONSTANS 1 (SOC1) did not flower up to 300 days after sowing under LD conditions, indicating that OsMADS50, which acts upstream of RFT1, promotes flowering under LD conditions.
- A rice ortholog of Arabidopsis APETALA1, OsMADS14, was expressed in the floral meristem in wild-type but not in RFT1 RNAi plants, suggesting that OsMADS14 is activated by RFT1 protein in the SAM after the transition to flowering.
Expression
- Transcript levels of RFT1 were very low in wild-type plants throughout development. The similarity of Hd3a and RFT1 expression patterns under SD and LD conditions, and in vascular tissues, suggests that RFT1 could function redundantly with Hd3a in promoting floral transition under SD conditions[3].
Subcellular localization
- An RFT1:GFP fusion protein localized in the shoot apical meristem (SAM) under LD conditions, suggesting that RFT1 is a florigen gene in rice.
Evolution
- RFT1 is the closest homolog of 13 FT-like genes in rice to Hd3a, with 91% identity in their deduced amino acid sequences and is located only 11.5 kb from Hd3a on chromosome 6
Labs working on this gene
- Genetic Resources Center, National Institute of Agrobiological Sciences, Kannondai Tsukuba, Ibaraki, Japan[2] .
- Institute of Crop Sciences, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, Japan[2] .
- Iwate Agricultural Research Center, Narita, Kitakami, Iwate, Japan[2] .
- National Institute of Genetics, 111-1 Yata, Mishima 411-8540,Japan [1].
- Faculty of Agriculture, Iwate University, Morioka 020-8550, Japan [1].
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Reina Komiya*, Shuji Yokoi and Ko Shimamoto. A gene network for long-day flowering activates RFT1 encoding a mobile flowering signal in rice .Development 136, 3443-3450 (2009) doi:10.1242/dev.040170.
- ↑ 2.0 2.1 2.2 Ogiso-Tanaka E, Matsubara K, Yamamoto S-i, Nonoue Y, Wu J, et al. (2013) Natural Variation of the RICE FLOWERING LOCUS T 1 Contributes to Flowering Time Divergence in Rice. PLoS ONE 8(10): e75959. doi:10.1371/journal.pone.0075959
