- Information
- Symbol: Ehd2,RID1
- MSU: LOC_Os10g28330
- RAPdb: Os10g0419200
- PSP score
- LOC_Os10g28330.1: 0.7505
- PLAAC score
- LOC_Os10g28330.1: 0
- pLDDT score
- 53.55
- Protein Structure from AlphaFold and UniProt
- Publication
- Ehd2, a rice ortholog of the maize INDETERMINATE1 gene, promotes flowering by up-regulating Ehd1, 2008, Plant Physiol.
- RID1, encoding a Cys2/His2-type zinc finger transcription factor, acts as a master switch from vegetative to floral development in rice, 2008, Proc Natl Acad Sci U S A.
- A point mutation in the zinc finger motif of RID1/EHD2/OsID1 protein leads to outstanding yield-related traits in japonica rice variety Wuyunjing 7, 2013, Rice (N Y).
- Genbank accession number
- Key message
- Ghd10 is orthologous to INDETERMINATE1 (ID1), which promotes flowering in maize (Zea mays) and is identical to the previously cloned genes Rice Indeterminate1 (RID1), Early heading date2 (Ehd2) and OsId1
- Here, we show that the Rice Indeterminate 1 (RID1) gene acts as the master switch for the transition from the vegetative to reproductive phase
- This phenotype in the ehd2 mutants suggests that Ehd2 is pivotal for the floral transition in rice
- In the first, RID1 is controlling the phase transition and initiation of floral induction
- RID1, encoding a Cys2/His2-type zinc finger transcription factor, acts as a master switch from vegetative to floral development in rice
- RID1 encodes a Cys-2/His-2-type zinc finger transcription factor that does not have an ortholog in Arabidopsis spp
- A RID1 knockout (rid1), mutated by T-DNA insertion, never headed after growing for >500 days under a range of growth conditions and is thus referred to as a never-flowering phenotype
- A model was proposed to place RID1 in the molecular pathways of flowering regulation in rice, for which there are two indispensable elements
- Once the phase transition is induced with the activation of RID1, flowering signal is transduced and regulated through the various pathways and eventually integrated with FT-like proteins to induce flowering
- A point mutation in the zinc finger motif of RID1/EHD2/OsID1 protein leads to outstanding yield-related traits in japonica rice variety Wuyunjing 7
- We discovered an early heading date2 (ehd2) mutant that shows extremely late flowering under both short- and long-day conditions in line with a background deficient in Heading date1 (Hd1), a rice CONSTANS ortholog that belongs to the conserved pathway
- Map-based cloning revealed that Ehd2 encodes a putative transcription factor with zinc finger motifs orthologous to the INDETERMINATE1 (ID1) gene, which promotes flowering in maize (Zea mays)
- To assign the position of Ehd2 within the flowering pathway of rice, we compared transcript levels of previously isolated flowering-time genes, such as Ehd1, a member of the unique pathway, Hd3a, and Rice FT-like1 (RFT1; rice florigens), between the wild-type plants and the ehd2 mutants
- Severely reduced expression of these genes in ehd2 under both short- and long-day conditions suggests that Ehd2 acts as a flowering promoter mainly by up-regulating Ehd1 and by up-regulating the downstream Hd3a and RFT1 genes in the unique genetic network of photoperiodic flowering in rice
- Ehd2, a rice ortholog of the maize INDETERMINATE1 gene, promotes flowering by up-regulating Ehd1
- Ehd2 mRNA in rice tissues accumulated most abundantly in developing leaves, but was present at very low levels around the shoot apex and in roots, patterns that are similar to those of ID1
- Connection
- Ehd2~RID1, Hd1, Ehd2, a rice ortholog of the maize INDETERMINATE1 gene, promotes flowering by up-regulating Ehd1, We discovered an early heading date2 (ehd2) mutant that shows extremely late flowering under both short- and long-day conditions in line with a background deficient in Heading date1 (Hd1), a rice CONSTANS ortholog that belongs to the conserved pathway
- Ehd2~RID1, Hd3a, Ehd2, a rice ortholog of the maize INDETERMINATE1 gene, promotes flowering by up-regulating Ehd1, To assign the position of Ehd2 within the flowering pathway of rice, we compared transcript levels of previously isolated flowering-time genes, such as Ehd1, a member of the unique pathway, Hd3a, and Rice FT-like1 (RFT1; rice florigens), between the wild-type plants and the ehd2 mutants
- Ehd2~RID1, Hd3a, Ehd2, a rice ortholog of the maize INDETERMINATE1 gene, promotes flowering by up-regulating Ehd1, Severely reduced expression of these genes in ehd2 under both short- and long-day conditions suggests that Ehd2 acts as a flowering promoter mainly by up-regulating Ehd1 and by up-regulating the downstream Hd3a and RFT1 genes in the unique genetic network of photoperiodic flowering in rice
- Ehd2~RID1, RFT1, Ehd2, a rice ortholog of the maize INDETERMINATE1 gene, promotes flowering by up-regulating Ehd1, To assign the position of Ehd2 within the flowering pathway of rice, we compared transcript levels of previously isolated flowering-time genes, such as Ehd1, a member of the unique pathway, Hd3a, and Rice FT-like1 (RFT1; rice florigens), between the wild-type plants and the ehd2 mutants
- Ehd2~RID1, RFT1, Ehd2, a rice ortholog of the maize INDETERMINATE1 gene, promotes flowering by up-regulating Ehd1, Severely reduced expression of these genes in ehd2 under both short- and long-day conditions suggests that Ehd2 acts as a flowering promoter mainly by up-regulating Ehd1 and by up-regulating the downstream Hd3a and RFT1 genes in the unique genetic network of photoperiodic flowering in rice
- Ehd1, Ehd2~RID1, Ehd2, a rice ortholog of the maize INDETERMINATE1 gene, promotes flowering by up-regulating Ehd1, To assign the position of Ehd2 within the flowering pathway of rice, we compared transcript levels of previously isolated flowering-time genes, such as Ehd1, a member of the unique pathway, Hd3a, and Rice FT-like1 (RFT1; rice florigens), between the wild-type plants and the ehd2 mutants
- Ehd1, Ehd2~RID1, Ehd2, a rice ortholog of the maize INDETERMINATE1 gene, promotes flowering by up-regulating Ehd1, Severely reduced expression of these genes in ehd2 under both short- and long-day conditions suggests that Ehd2 acts as a flowering promoter mainly by up-regulating Ehd1 and by up-regulating the downstream Hd3a and RFT1 genes in the unique genetic network of photoperiodic flowering in rice
- Ehd1, Ehd2~RID1, Ehd2, a rice ortholog of the maize INDETERMINATE1 gene, promotes flowering by up-regulating Ehd1, Ehd2, a rice ortholog of the maize INDETERMINATE1 gene, promotes flowering by up-regulating Ehd1
- Ehd2~RID1, FKF1~OsFKF1, Rice FLAVIN-BINDING, KELCH REPEAT, F-BOX 1 OsFKF1 promotes flowering independent of photoperiod., Transcriptional analysis revealed that OsFKF1 up-regulates expression of the floral activator Ehd2 and down-regulates expression of the floral repressor Ghd7; these regulators up- and down-regulate Ehd1 expression, respectively
- Ehd2~RID1, FKF1~OsFKF1, Rice FLAVIN-BINDING, KELCH REPEAT, F-BOX 1 OsFKF1 promotes flowering independent of photoperiod., Moreover, OsFKF1 can upregulate Ehd1 expression under blue light treatment, without affecting the expression of Ehd2 and Ghd7
- Ehd2~RID1, FKF1~OsFKF1, Rice FLAVIN-BINDING, KELCH REPEAT, F-BOX 1 OsFKF1 promotes flowering independent of photoperiod., In contrast to the LD-specific floral activator Arabidopsis FKF1, OsFKF1 likely acts as an autonomous floral activator because it promotes flowering independent of photoperiod, probably via its distinct roles in controlling expression of rice-specific genes including Ehd2, Ghd7, and Ehd1
- Ehd2~RID1, SID1~OsIDD4, Suppressor of rid1 SID1 shares common targets with RID1 on florigen genes to initiate floral transition in rice., Suppressor of rid1 (SID1) shares common targets with RID1 on florigen genes to initiate floral transition in rice.
- Ehd2~RID1, SID1~OsIDD4, Suppressor of rid1 SID1 shares common targets with RID1 on florigen genes to initiate floral transition in rice., Here, we identified a Suppressor of rid1 (SID1), which rescues the never-flowering phenotype of rid1
- Ehd2~RID1, SID1~OsIDD4, Suppressor of rid1 SID1 shares common targets with RID1 on florigen genes to initiate floral transition in rice., Gain-of-function of SID1, OsIDD1, or OsIDD6 could restore the rid1 to flowering
- Ehd2~RID1, SID1~OsIDD4, Suppressor of rid1 SID1 shares common targets with RID1 on florigen genes to initiate floral transition in rice., Further analyses showed SID1 and RID1 directly target the promoter regions of Hd3a and RFT1, two florigen genes in rice
- Ehd2~RID1, OsIDD6, Suppressor of rid1 SID1 shares common targets with RID1 on florigen genes to initiate floral transition in rice., Gain-of-function of SID1, OsIDD1, or OsIDD6 could restore the rid1 to flowering
- Ehd2~RID1, OsIDD1, Suppressor of rid1 SID1 shares common targets with RID1 on florigen genes to initiate floral transition in rice., Gain-of-function of SID1, OsIDD1, or OsIDD6 could restore the rid1 to flowering
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