- Information
- Symbol: D10,OsCCD8,OsCCD8b
- MSU: LOC_Os01g54270
- RAPdb: Os01g0746400
- Publication
- Identification and characterization of HTD2: a novel gene negatively regulating tiller bud outgrowth in rice, 2009, Planta.
- Rice tillering dwarf mutant dwarf3 has increased leaf longevity during darkness-induced senescence or hydrogen peroxide-induced cell death, 2007, Genes Genet Syst.
- The rice HIGH-TILLERING DWARF1 encoding an ortholog of Arabidopsis MAX3 is required for negative regulation of the outgrowth of axillary buds, 2006, Plant J.
- DWARF10, an RMS1/MAX4/DAD1 ortholog, controls lateral bud outgrowth in rice, 2007, Plant J.
- The interactions among DWARF10, auxin and cytokinin underlie lateral bud outgrowth in rice, 2010, J Integr Plant Biol.
- A new lead chemical for strigolactone biosynthesis inhibitors, 2010, Plant Cell Physiol.
- d14, a strigolactone-insensitive mutant of rice, shows an accelerated outgrowth of tillers, 2009, Plant Cell Physiol.
- Carotenoid oxygenases involved in plant branching catalyse a highly specific conserved apocarotenoid cleavage reaction, 2008, Biochem J.
- Characterization of dwarf and narrow leaf dnl-4 mutant in rice, 2020, Plant Signal Behav.
- Genbank accession number
- Key message
- Besides, in D10-RNAi plants, decreased storage cytokinin levels in the shoot node may partly account for the increased active cytokinin contents, resulting in more tillering phenotypes
- Real-time polymerase chain reaction analysis revealed that accumulation of D10 mRNA is induced by exogenous auxin
- D10 is a rice ortholog of MAX4/RMS1/DAD1 that encodes a carotenoid cleavage dioxygenase 8 and is supposed to be involved in the synthesis of an unidentified inhibitor of shoot branching
- We discovered a triazole-type chemical, TIS13 [2,2-dimethyl-7-phenoxy-4-(1H-1,2,4-triazol-1-yl)heptan-3-ol], which induced outgrowth of second tiller buds of wild-type seedlings, as observed for non-treated strigolactone-deficient d10 mutant seedlings
- Moreover, D10 expression is upregulated in six branching mutants, d3, d10, d14, d17, d27 and high tillering dwarf (htd1)
- Here we use D10- RNA interference (RNAi) transgenic plants similar to d10 mutant in phenotypes to investigate the interactions among D10, auxin and cytokinin in regulating rice shoot branching
- Auxin levels in node 1 of both decapitated D10-RNAi and wild type plants decreased significantly, showing that decapitation does reduce endogenous auxin concentration, but decapitation has no clear effects on auxin levels in node 2 of the same plants
- This implies that node 1 may be the location where a possible interaction between auxin and D10 gene would be detected
- D10 expression in node 1 is inhibited by decapitation, and this inhibition can be restored by exogenous auxin application, indicating that D10 may play an important role in auxin regulation of SL
- The decreased expression of most OsPINs in shoot nodes of D10-RNAi plants may cause a reduced auxin transport capacity
- Furthermore, effects of auxin treatment of decapitated plants on the expression of cytokinin biosynthetic genes suggest that D10 promotes cytokinin biosynthesis by reducing auxin levels
- In dwarf10 (d10), an enhanced branching mutant of rice, apical dominance can be observed, but the inhibitory effects of the apical meristem was reduced
- The d14 mutant exhibits increased shoot branch-ing with reduced plant height like the previously characterized strigolactone-deficient and -insensitive mutants d10 and d3, respectively
- However, unlike with d10, the d14 branching phenotype could not be rescued by exogenous strigolactones
- Loss of function of HTD2 resulted in a significantly increased expression of HTD1, D10 and D3, which were involved in the strigolactone biosynthetic pathway
- Moreover, the mRNA levels of D3, HTD1 and D10, which are orthologs of Arabidopsis MAX2/ORE9, MAX3 and MAX4, respectively, increased during cell death
- Previous studies have shown that DWARF10 (D10) is a rice ortholog of MAX4/RMS1/DAD1, encoding a carotenoid cleavage dioxygenase and functioning in strigolactones/strigolactone-derivatives (SL) biosynthesis
- These findings imply that D10 transcription might be a critical step in the regulation of the branching inhibitor pathway
- Connection
- D10~OsCCD8~OsCCD8b, D3, Identification and characterization of HTD2: a novel gene negatively regulating tiller bud outgrowth in rice, Loss of function of HTD2 resulted in a significantly increased expression of HTD1, D10 and D3, which were involved in the strigolactone biosynthetic pathway
- D10~OsCCD8~OsCCD8b, HTD2~D88~D14, Identification and characterization of HTD2: a novel gene negatively regulating tiller bud outgrowth in rice, Loss of function of HTD2 resulted in a significantly increased expression of HTD1, D10 and D3, which were involved in the strigolactone biosynthetic pathway
- D10~OsCCD8~OsCCD8b, HTD1~OsCCD7~D17, Identification and characterization of HTD2: a novel gene negatively regulating tiller bud outgrowth in rice, Loss of function of HTD2 resulted in a significantly increased expression of HTD1, D10 and D3, which were involved in the strigolactone biosynthetic pathway
- D10~OsCCD8~OsCCD8b, D3, Rice tillering dwarf mutant dwarf3 has increased leaf longevity during darkness-induced senescence or hydrogen peroxide-induced cell death, Moreover, the mRNA levels of D3, HTD1 and D10, which are orthologs of Arabidopsis MAX2/ORE9, MAX3 and MAX4, respectively, increased during cell death
- D10~OsCCD8~OsCCD8b, HTD1~OsCCD7~D17, Rice tillering dwarf mutant dwarf3 has increased leaf longevity during darkness-induced senescence or hydrogen peroxide-induced cell death, Moreover, the mRNA levels of D3, HTD1 and D10, which are orthologs of Arabidopsis MAX2/ORE9, MAX3 and MAX4, respectively, increased during cell death
- D10~OsCCD8~OsCCD8b, D3, DWARF10, an RMS1/MAX4/DAD1 ortholog, controls lateral bud outgrowth in rice, Moreover, D10 expression is upregulated in six branching mutants, d3, d10, d14, d17, d27 and high tillering dwarf (htd1)
- D10~OsCCD8~OsCCD8b, HTD2~D88~D14, DWARF10, an RMS1/MAX4/DAD1 ortholog, controls lateral bud outgrowth in rice, Moreover, D10 expression is upregulated in six branching mutants, d3, d10, d14, d17, d27 and high tillering dwarf (htd1)
- D10~OsCCD8~OsCCD8b, HTD1~OsCCD7~D17, DWARF10, an RMS1/MAX4/DAD1 ortholog, controls lateral bud outgrowth in rice, Moreover, D10 expression is upregulated in six branching mutants, d3, d10, d14, d17, d27 and high tillering dwarf (htd1)
- D10~OsCCD8~OsCCD8b, D27, DWARF10, an RMS1/MAX4/DAD1 ortholog, controls lateral bud outgrowth in rice, Moreover, D10 expression is upregulated in six branching mutants, d3, d10, d14, d17, d27 and high tillering dwarf (htd1)
- D10~OsCCD8~OsCCD8b, HTD1~OsCCD7~D17, Carotenoid oxygenases involved in plant branching catalyse a highly specific conserved apocarotenoid cleavage reaction, The synthesis of this inhibitor is initiated by the two CCDs [carotenoid-cleaving (di)oxygenases] OsCCD7/OsCCD8b, MAX3/MAX4 and RMS5/RMS1 in rice, Arabidopsis and pea respectively
- D10~OsCCD8~OsCCD8b, HTD2~D88~D14, d14, a strigolactone-insensitive mutant of rice, shows an accelerated outgrowth of tillers, The d14 mutant exhibits increased shoot branch-ing with reduced plant height like the previously characterized strigolactone-deficient and -insensitive mutants d10 and d3, respectively
- D10~OsCCD8~OsCCD8b, HTD2~D88~D14, d14, a strigolactone-insensitive mutant of rice, shows an accelerated outgrowth of tillers, The d10-1 d14-1 double mutant is phenotypically indistinguishable from the d10-1 and d14-1 single mutants, consistent with the idea that D10 and D14 function in the same pathway
- D10~OsCCD8~OsCCD8b, HTD2~D88~D14, d14, a strigolactone-insensitive mutant of rice, shows an accelerated outgrowth of tillers, However, unlike with d10, the d14 branching phenotype could not be rescued by exogenous strigolactones
- D10~OsCCD8~OsCCD8b, HTD2~D88~D14, Identification and Molecular Mapping of Indica High-tillering Dwarf Mutant htd4, a Mild Phenotype Allelic Mutant of D14 in Rice Oryza sativa L.., Quantitative RT-PCR analyses revealed that expression levels of the genes D10, D17, D27, D3, and D14 increased significantly while expression of D53 decreased in htd4, compared to the wild type
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