Gene Details:

• MSU gene ID: LOC_Os05g44050
• RAPdb gene ID: Os05g0516600
• Gene Symbol: OsRab7 OsRab7B3
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• In transgenic rice overexpressing OsRab7B3, the senescence-related genes were upregulated and leaf senescence was significantly enhanced under dark conditions.
• Hence it is suggested that OsRab7B3 act as a stress-inducible gene that plays an important role in the leaf senescence process.
• Overexpression ofOsRab7B3, a Small GTP-Binding Protein Gene, Enhances Leaf Senescence in Transgenic Rice.
• Expression of sGFP under the control of the OsRab7B3 promoter increased in leaves when ABA and NaCl were applied or when kept in dark.
• One of the OsRab genes, OsRab7B3, closely associated with senescence in expression pattern, was chosen for functional analysis.
• OsRab7 overexpression also increased grain yield in rice.
• Taken together, the current study indicates that the OsRab7 gene improves grain yield and enhances drought and heat tolerance in transgenic rice by modulating osmolytes, antioxidants and abiotic stress-responsive genes expression.
• Therefore, OsRab7 gene could be exploited as a promising candidate for improving rice grain yield and stress tolerance.

Function-related keywords:

• leaf ,  ABA ,  senescence ,  grain ,  drought ,  tolerance ,  grain-yield ,  yield ,  abiotic-stress ,  stress ,  biotic-stress ,  stress-tolerance ,  heat-tolerance

Literature:

• Overexpression of OsRab7B3, a small GTP-binding protein gene, enhances leaf senescence in transgenic rice .  DOI:  10.1271/bbb.120050 ;  PMID:  22785493
• Molecular and biochemical analyses of OsRab7, a rice Rab7 homolog .  DOI:  10.1093/pcp/pcg163 ;  PMID:  14701929
• Overexpression of Rice Rab7 Gene Improves Drought and Heat Tolerance and Increases Grain Yield in Rice (Oryza sativa L.) .  DOI:  10.3390/genes10010056 ;  PMID:  30658457

Related News:

Gene Resources:

• NCBI ID: AY226827  , NM_001062581
• UniProt accessions:

Sequences: