Gene Details:

• MSU gene ID: LOC_Os09g28520
• RAPdb gene ID: Os09g0459200
• Gene Symbol: SG1
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• However, the endogenous BR level in the SG1 overexpressor (SG1:OX) plants was comparable to the wild type.
• Overexpression of SG1 in rice produced a phenotype with short grains and dwarfing reminiscent of brassinosteroid (BR)-deficient mutants, with wide, dark-green, and erect leaves.
• Taken together, these results suggest that SG1 decreases responses to BRs and elongation of organs such as seeds and the internodes of rachis branches through decreased cellular proliferation.
• The causative gene, SG1, encodes a protein with unknown function that is preferentially expressed in roots and developing panicles.
• SG1:OX plants were insensitive to brassinolide in the lamina inclination assay.
• We identified a short-grain mutant (Short grain1 (SG1) Dominant) via phenotypic screening of 13,000 rice (Oryza sativa) activation-tagged lines.
• In contrast to the SG1:OX plants, RNA interference knockdown plants that down-regulated SG1 and a related gene, SG1-LIKE PROTEIN1, had longer grains and internodes in rachis branches than in the wild type.

Function-related keywords:

• BR ,  brassinosteroid ,  seed ,  dwarf ,  panicle ,  lamina ,  root ,  erect ,  cellular-proliferation ,  grain

Literature:

• Short grain1 decreases organ elongation and brassinosteroid response in rice .  DOI:  10.1104/pp.111.187567 ;  PMID:  22209874

Related News:

Gene Resources:

• NCBI ID: AK110733
• UniProt accessions:

Sequences: