Gene Details:

• MSU gene ID: LOC_Os04g54900
• RAPdb gene ID: Os04g0641700
• Gene Symbol: ILI1
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• Overexpression and RNA interference suppression of ILI1 increase and reduce, respectively, rice laminar inclination, confirming a positive role of ILI1 in leaf bending.
• ILI1 and PRE1 interact with basic helix-loop-helix (bHLH) protein IBH1 (ILI1 binding bHLH), whose overexpression causes erect leaf in rice and dwarfism in Arabidopsis.
• We identified a rice mutant (ILI1-D) showing an increased lamina inclination phenotype similar to that caused by BR treatment.
• BR increases the RNA levels of ILI1 and PRE1 but represses IBH1 through the transcription factor BZR1.
• Thus, ILI1 and PRE1 may inactivate inhibitory bHLH transcription factors through heterodimerization.
• The spatial and temporal expression patterns support roles of ILI1 in laminar joint bending and PRE1/At IBH1 in the transition from growth of young organs to growth arrest.
• LIC directly regulated target genes such as INCREASED LEAF INCLINATION 1 (ILI1) to oppose the action of BZR1.
• Overexpression of ILI1 or PRE1 increases cell elongation and suppresses dwarf phenotypes caused by overexpression of IBH1 in Arabidopsis.

Function-related keywords:

• leaf ,  BR ,  transcription-factor ,  lamina ,  cell-elongation ,  erect ,  growth ,  dwarf

Literature:

• Dynamics of brassinosteroid response modulated by negative regulator LIC in rice .  DOI:  10.1371/journal.pgen.1002686 ;  PMID:  22570626
• Antagonistic HLH/bHLH transcription factors mediate brassinosteroid regulation of cell elongation and plant development in rice and Arabidopsis .  DOI:  10.1105/tpc.109.070441 ;  PMID:  20009022

Related News:

Gene Resources:

• NCBI ID:
• UniProt accessions:

Sequences: