Gene Details:

• MSU gene ID: LOC_Os07g37210
• RAPdb gene ID: Os07g0558100
• Gene Symbol: OsMYB7
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• OsMYB7 determines leaf angle at the late developmental stage of lamina joints in rice.
• ) R2R3-type MYB transcription factor OsMYB7 determines leaf angle in a developmental stage-specific manner.
• These results suggest that OsMYB7 promotes leaf inclination partially through decreasing free auxin levels and promoting cell elongation at the adaxial side of lamina joints.
• In agreement with these observations, OsMYB7 was preferentially expressed in the lamina joints of post-mature leaves.
• Although OsMYB7 repressed lignin biosynthesis, it enhanced thickening of sclerenchyma cell walls by elevating cellulose contents at the lamina joints.
• Furthermore, we found that OsMYB7 affects endogenous auxin levels in lamina joints, and the adaxial cells of lamina joints in OsMYB7-overexpressing lines and OsMYB7 knockout mutants exhibited enhanced and reduced elongation, respectively, compared to the wild type.
• Since OsMYB7 homologs are transcriptional repressors of lignin biosynthesis, we examined whether OsMYB7 might inhibit thickening of secondary cell walls.
• OsMYB7-overexpressing lines produced wide-angled leaves and OsMYB7 knockout mutants exhibited erect leaves.

Function-related keywords:

• leaf ,  transcription-factor ,  lamina ,  auxin ,  mature-leaves ,  cellulose ,  cell-wall ,  cell-elongation ,  erect ,  lignin ,  lignin-biosynthesis ,  leaf-angle ,  lamina-joint ,  transcriptional-repressor ,  secondary-cell-wall

Literature:

• OsMYB7 determines leaf angle at the late developmental stage of lamina joints in rice .  DOI:  10.3389/fpls.2023.1167202 ;  PMID:  37123839

Related News:

Gene Resources:

• NCBI ID:
• UniProt accessions:

Sequences: