Gene Details:

• MSU gene ID: LOC_Os05g11510
• RAPdb gene ID: Os05g0204600
• Gene Symbol: OsBBX14
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• OsBBX14 is highly expressed in flag leaf blades.
• Thus, OsBBX14 acts as a floral repressor by promoting Hd1 expression under LD conditions, probably because of crosstalk with the circadian clock.
• OsBBX14 delays heading date by repressing florigen gene expression under long and short-day conditions in rice.
• OsBBX14-overexpression (OsBBX14-OX) lines exhibited delayed heading date under long-day (LD) and short-day (SD) conditions, whereas RNAi lines of OsBBX14 lines had similar heading dates to the WT.
• Our findings suggested that OsBBX14 regulates heading date differently under LD and SD conditions.
• OsBBX14 is located in the nucleus and has transcriptional activation potential.
• The ectopic expression of OsBBX14 in Arabidopsis resulted in a dramatic increase in anthocyanin accumulation in its seedlings.
• The OsBBX14-overexpressing (OsBBX14-OX) seedlings were hypersensitive to light, especially blue light, and exhibited dwarfism, while the OsBBX14 knock-out plants (OsBBX14) were taller than wild-type plants under blue light.
• Collectively, in response to blue light, OsBBX14 promotes photomorphogenesis, probably by directly or indirectly regulating the expression of HY5L1 or other genes related to cell wall organization and dwarfism.

Function-related keywords:

• leaf ,  floral ,  heading-date ,  nucleus ,  seedlings ,  cell-wall

Literature:

• OsBBX14 delays heading date by repressing florigen gene expression under long and short-day conditions in rice .  DOI:  10.1016/j.plantsci.2016.02.017 ;  PMID:  27095397
• A Rice B-Box Protein, OsBBX14, Finely Regulates Anthocyanin Biosynthesis in Rice .  DOI:  10.3390/ijms19082190 ;  PMID:  30060460
• OsBBX14 promotes photomorphogenesis in rice by activating OsHY5L1 expression under blue light conditions .  DOI:  10.1016/j.plantsci.2019.04.017 ;  PMID:  31084872
• Transcriptional and post-transcriptional regulation of heading date in rice .  DOI:  10.1111/nph.17158 ;  PMID:  33341945

Related News:

Gene Resources:

• NCBI ID:
• UniProt accessions:

Sequences: