- Information
- Symbol: MOC1
- MSU: LOC_Os06g40780
- RAPdb: Os06g0610300,Os06g0610350
- Publication
- Identification and functional analysis of the MOC1 interacting protein 1, 2010, Journal of Genetics and Genomics.
- A major QTL, Ghd8, plays pleiotropic roles in regulating grain productivity, plant height, and heading date in rice, 2011, Mol Plant.
- Control of tillering in rice, 2003, Nature.
- Rice APC/CTE controls tillering by mediating the degradation of MONOCULM 1, 2012, Nat Commun.
- Degradation of MONOCULM 1 by APC/CTAD1 regulates rice tillering, 2012, Nat Commun.
- Comparative sequence analysis of MONOCULM1-orthologous regions in 14 Oryza genomes, 2009, Proc Natl Acad Sci U S A.
- Novel function of a putative MOC1 ortholog associated with spikelet number per spike in common wheat., 2015, Sci Rep.
- Tiller Bud Formation Regulators MOC3 and MOC1 Cooperatively Promote Tiller Bud Outgrowth by Activating FON1 Expression in Rice., 2019, Mol Plant.
- Genbank accession number
- Key message
- Here we report the isolation and characterization of MONOCULM 1 (MOC1), a gene that is important in the control of rice tillering
- The moc1 mutant plants have only a main culm without any tillers owing to a defect in the formation of tiller buds
- A large genomic region surrounding the MONOCULM1 (MOC1) locus was chosen for study in 14 Oryza species, including 10 diploids and 4 allotetraploids
- Ghd8 up-regulated MOC1, a key gene controlling tillering and branching; this increased the number of tillers, primary and secondary branches, thus producing 50% more grains per plant
- To further elucidate the molecular mechanism of MOC1 involved in the regulation of rice tillering, we performed a yeast-two-hybrid screening to identify MOC1 interacting proteins (MIPs)
- In-depth characterization of the context of MIP1 and MOC1 would further our understanding of molecular regulatory mechanisms of rice tillering
- We show that TE coexpresses with MOC1 in the axil of leaves, where the APC/C(TE) complex mediates the degradation of MOC1 by the ubiquitin-26S proteasome pathway, and consequently downregulates the expression of the meristem identity gene Oryza sativa homeobox 1, thus repressing axillary meristem initiation and formation
- The MONOCULM 1 (MOC1) gene is the first identified key regulator controlling rice tiller number; however, the underlying mechanism remains to be elucidated
- Rice MONOCULM 1 (MOC1) and its orthologues LS/LAS (lateral suppressor in tomato and Arabidopsis) are key promoting factors of shoot branching and tillering in higher plants
- MOC1 encodes a putative GRAS family nuclear protein that is expressed mainly in the axillary buds and functions to initiate axillary buds and to promote their outgrowth
- Our previous study has demonstrated that the MONOCULM1 (MOC1) gene is a key component that controls the formation of rice tiller buds
- Novel function of a putative MOC1 ortholog associated with spikelet number per spike in common wheat.
- Tomato Ls, Arabidopsis LAS and rice MOC1 are orthologous genes regulating axillary meristem initiation and outgrowth
- Tiller Bud Formation Regulators MOC3 and MOC1 Cooperatively Promote Tiller Bud Outgrowth by Activating FON1 Expression in Rice.
- Collectively, these results shed lights on the joint transcriptional regulation by MOC1 and MOC3, and establish a new framework for the control of tiller bud formation and outgrowth
- Accordingly, FON1 is highly expressed at axillary meristems and shows remarkable decreased expression levels in moc1 and moc3 mutants
- Connection
- MOC1, OsHUB1~MIP1, Identification and functional analysis of the MOC1 interacting protein 1, Here we reported that MIP1 interacted with MOC1 both in vitro and in vivo
- MOC1, OsHUB1~MIP1, Identification and functional analysis of the MOC1 interacting protein 1, In-depth characterization of the context of MIP1 and MOC1 would further our understanding of molecular regulatory mechanisms of rice tillering
- Hd5~DTH8~Ghd8~OsHAP3H~LHD1~EF8~CAR8~OsNF-YB11, MOC1, A major QTL, Ghd8, plays pleiotropic roles in regulating grain productivity, plant height, and heading date in rice, Ghd8 up-regulated MOC1, a key gene controlling tillering and branching; this increased the number of tillers, primary and secondary branches, thus producing 50% more grains per plant
- MOC1, OsCCS52A~TAD~TE, Rice APC/CTE controls tillering by mediating the degradation of MONOCULM 1, TE physically interacts with MOC1 and OsCDC27
- FON1, MOC1, Tiller Bud Formation Regulators MOC3 and MOC1 Cooperatively Promote Tiller Bud Outgrowth by Activating FON1 Expression in Rice., Tiller Bud Formation Regulators MOC3 and MOC1 Cooperatively Promote Tiller Bud Outgrowth by Activating FON1 Expression in Rice.
- FON1, MOC1, Tiller Bud Formation Regulators MOC3 and MOC1 Cooperatively Promote Tiller Bud Outgrowth by Activating FON1 Expression in Rice., Here, we report that MONOCULM1 (MOC1) and MONOCULM 3/TILLERS ABSENT 1/STERILE AND REDUCED TILLERING 1 (MOC3/TAB1/SRT1), two vital regulators for tiller formation in rice, could physically interact to regulate tiller bud outgrowth through upregulating the expression of FLORAL ORGAN NUMBER1 (FON1), the homolog of CLAVATA1 in rice
- FON1, MOC1, Tiller Bud Formation Regulators MOC3 and MOC1 Cooperatively Promote Tiller Bud Outgrowth by Activating FON1 Expression in Rice., MOC1 functions as a co-activator of MOC3, which did not directly bind to the FON1 promoter, but could further activate the FON1 expression in the presence of MOC3
- FON1, MOC1, Tiller Bud Formation Regulators MOC3 and MOC1 Cooperatively Promote Tiller Bud Outgrowth by Activating FON1 Expression in Rice., Accordingly, FON1 is highly expressed at axillary meristems and shows remarkable decreased expression levels in moc1 and moc3 mutants
- MOC1, MOC3~OsWUS~TAB1~OsTAB1, Tiller Bud Formation Regulators MOC3 and MOC1 Cooperatively Promote Tiller Bud Outgrowth by Activating FON1 Expression in Rice., Tiller Bud Formation Regulators MOC3 and MOC1 Cooperatively Promote Tiller Bud Outgrowth by Activating FON1 Expression in Rice.
- MOC1, MOC3~OsWUS~TAB1~OsTAB1, Tiller Bud Formation Regulators MOC3 and MOC1 Cooperatively Promote Tiller Bud Outgrowth by Activating FON1 Expression in Rice., MOC1 functions as a co-activator of MOC3, which did not directly bind to the FON1 promoter, but could further activate the FON1 expression in the presence of MOC3
- MOC1, MOC3~OsWUS~TAB1~OsTAB1, Tiller Bud Formation Regulators MOC3 and MOC1 Cooperatively Promote Tiller Bud Outgrowth by Activating FON1 Expression in Rice., Accordingly, FON1 is highly expressed at axillary meristems and shows remarkable decreased expression levels in moc1 and moc3 mutants
- MOC1, MOC3~OsWUS~TAB1~OsTAB1, Tiller Bud Formation Regulators MOC3 and MOC1 Cooperatively Promote Tiller Bud Outgrowth by Activating FON1 Expression in Rice., Collectively, these results shed lights on the joint transcriptional regulation by MOC1 and MOC3, and establish a new framework for the control of tiller bud formation and outgrowth
- MOC1, SLR1~OsGAI~OsSLR1, SLR1 inhibits MOC1 degradation to coordinate tiller number and plant height in rice., SLR1 inhibits MOC1 degradation to coordinate tiller number and plant height in rice.
- MOC1, SLR1~OsGAI~OsSLR1, SLR1 inhibits MOC1 degradation to coordinate tiller number and plant height in rice., Here we show that rice tiller number regulator MONOCULM 1 (MOC1) is protected from degradation by binding to the DELLA protein SLENDER RICE 1 (SLR1)
- MOC1, SLR1~OsGAI~OsSLR1, SLR1 inhibits MOC1 degradation to coordinate tiller number and plant height in rice., GAs trigger the degradation of SLR1, leading to stem elongation and also to the degradation of MOC1, and hence a decrease in tiller number
- MOC1, SLR1~OsGAI~OsSLR1, SLR1 inhibits MOC1 degradation to coordinate tiller number and plant height in rice., This discovery provides a molecular explanation for the coordinated control of plant height and tiller number in rice by GAs, SLR1 and MOC1
- Hd5~DTH8~Ghd8~OsHAP3H~LHD1~EF8~CAR8~OsNF-YB11, MOC1, DTH8 overexpression induces early flowering, boosts yield, and improves stress recovery in rice cv IR64., DTH8 up-regulates the transcription of RFT1, Hd3a, GHD7, MOC1, and RCN1 in IR64 at the pre-flowering stage and plays a role in early flowering, increased number of tillers, enhanced panicle branching, and improved tolerance towards drought and salinity stress at the reproductive stage
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