Gene Details:

• MSU gene ID: LOC_Os03g18130
• RAPdb gene ID: Os03g0291500
• Gene Symbol: OsASN1 OsAS1
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• OsAS1 was mainly expressed in the roots with in situ hybridization showing that the corresponding mRNA was specifically accumulated in the three cell layers of root surface (epidermis, exodermis, and sclerenchyma) in an NH4 (+)-dependent manner.
• These results suggest that OsASN1 is involved in the regulation of rice development and is specific for tiller outgrowth.
• In addition, we show that overexpression (OX) of OsASN1 results in better nitrogen uptake and assimilation, and increased tolerance to N limitation at the seedling stage.
• Thus, OsASN1 can be an effective target gene for the development of rice cultivars with higher grain protein content, NUE, and grain yield under N-limiting conditions.
• OsASN1 Overexpression in Rice Increases Grain Protein Content and Yield under Nitrogen-Limiting Conditions.
• Under field conditions, the OsASN1 OX rice plants produced grains with increased N and protein contents without yield reduction compared to wild-type (WT) rice.

Function-related keywords:

• root ,  tiller ,  development ,  nitrogen ,  grain ,  seedling ,  tolerance ,  grain-yield ,  yield ,  grain-protein-content ,  grain-protein

Literature:

• Biological functions of asparagine synthetase in plants .  DOI:  10.1016/j.plantsci.2010.04.010
• Asparagine synthetase1, but not asparagine synthetase2, is responsible for the biosynthesis of asparagine following the supply of ammonium to rice roots .  DOI:  10.1093/pcp/pcv005 ;  PMID:  25634963
• OsASN1 Plays a Critical Role in Asparagine-Dependent Rice Development .  DOI:  10.3390/ijms20010130 ;  PMID:  30602689
• OsASN1 Overexpression in Rice Increases Grain Protein Content and Yield under Nitrogen-Limiting Conditions .  DOI:  10.1093/pcp/pcaa060 ;  PMID:  32384162
• OsASN1 Overexpression in Rice Increases Grain Protein Content and Yield under Nitrogen-Limiting Conditions .  DOI:  10.1093/pcp/pcaa060 ;  PMID:  32384162

Related News:

Gene Resources:

• NCBI ID:
• UniProt accessions:

Sequences: