Gene Details:

• MSU gene ID: LOC_Os07g03450
• RAPdb gene ID: None
• Gene Symbol: OsCHR4
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• OsCHR4 was mainly expressed in the root meristem, flower, vascular bundle, and mesophyll cells by promoter::GUS analysis in transgenic rice.
• The transcripts of some nuclear- and plastid-encoded genes required for early chloroplast development and photosynthesis were decreased in the adaxial albino mesophyll of the OsCHR4 mutant.
• Ultrastructural observations indicated that proplastid growth and/or thylakoid membrane formation in adaxial mesophyll cells was blocked in the OsCHR4 mutant.
• The OsCHR4 mutant exhibited defective chloroplasts in adaxial mesophyll, but not in abaxial mesophyll.
• These observations provide evidence that OsCHR4, the rice Mi-2-like protein, plays an important role in early chloroplast development in adaxial mesophyll cells.
• Molecular cloning and characterization of OsCHR4, a rice chromatin-remodeling factor required for early chloroplast development in adaxial mesophyll.
• Therefore, OsCHR4 regulates leaf morphogenesis and cuticle wax formation by epigenetic modulation of auxin and wax biosynthetic genes expression.

Function-related keywords:

• root ,  vascular-bundle ,  meristem ,  photosynthesis ,  flower ,  growth ,  chloroplast ,  leaf ,  auxin ,  cuticle

Literature:

• Molecular cloning and characterization of OsCHR4, a rice chromatin-remodeling factor required for early chloroplast development in adaxial mesophyll .  DOI:  10.1007/s00425-012-1667-1 ;  PMID:  22644768
• Mutations in the Rice OsCHR4 Gene, Encoding a CHD3 Family Chromatin Remodeler, Induce Narrow and Rolled Leaves with Increased Cuticular Wax .  DOI:  10.3390/ijms20102567 ;  PMID:  31130602
• Characterization of dwarf and narrow leaf (dnl-4) mutant in rice .  DOI:  10.1080/15592324.2020.1849490 ;  PMID:  33300429

Related News:

Gene Resources:

• NCBI ID:
• UniProt accessions:

Sequences: