Ehd1 , a B-type response regulator in rice, confers short-day promotion of flowering and controls FT-like gene expression independently of Hd1
Kyushu University · Institute of Agrobiological Sciences · +2 more institutions
Abstract
Two evolutionarily distant plant species, rice (Oryza sativa L.), a short-day (SD) plant, and Arabidopsis thaliana, a long-day plant, share a conserved genetic network controlling photoperiodic flowering. The orthologous floral regulators-rice Heading date 1 (Hd1) and Arabidopsis CONSTANS (CO)-integrate circadian clock and external light signals into mRNA expression of the FLOWERING LOCUS T (FT) group floral inducer. Here, we report that the rice Early heading date 1 (Ehd1) gene, which confers SD promotion of flowering in the absence of a functional allele of Hd1, encodes a B-type response regulator that might not have an ortholog in the Arabidopsis genome. Ehd1 mRNA was induced by 1-wk SD treatment, and Ehd1…
Citation impact
- FWCI
- —
- Percentile
- —
- References
- 47
Authors
8- KDKazuyuki DoiCorresponding
Kyushu University, Institute of Agrobiological Sciences, Bio-oriented Technology Research Advancement Institution
- TITakeshi Izawa
Ministry of Agriculture, Forestry and Fisheries, Kyushu University, Institute of Agrobiological Sciences, Bio-oriented Technology Research Advancement Institution
- TFTakuichi Fuse
Ministry of Agriculture, Forestry and Fisheries, Kyushu University, Institute of Agrobiological Sciences, Bio-oriented Technology Research Advancement Institution
- UYUtako Yamanouchi
Ministry of Agriculture, Forestry and Fisheries, Kyushu University, Institute of Agrobiological Sciences, Bio-oriented Technology Research Advancement Institution
- TKTakahiko Kubo
Ministry of Agriculture, Forestry and Fisheries, Kyushu University, Institute of Agrobiological Sciences, Bio-oriented Technology Research Advancement Institution
Topics & keywords
- Biology
- Arabidopsis
- Oryza sativa
- Genetics
- Gene
- Arabidopsis thaliana
- MADS-box
- Regulator
- Life in Land