Gene Details:

• MSU gene ID: LOC_Os10g32680
• RAPdb gene ID: Os10g0463800
• Gene Symbol: FLO7
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• Notably, FLO7 peripheral endosperm cells showed obvious defects in compound starch grain development.
• Together, our findings identify FLO7 as a unique plant regulator required for starch synthesis and amyloplast development within the peripheral endosperm and provide new insights into the spatial regulation of endosperm development in rice.
• Map-based cloning of FLO7 revealed that it encodes a protein of unknown function.
• Consistent with the phenotypic alternation in FLO7 endosperm, the FLO7 mutant had reduced amylose content and seriously disrupted amylopectin structure only in the peripheral endosperm.
• FLO7 harbors an N-terminal transit peptide capable of targeting functional FLO7 fused to green fluorescent protein to amyloplast stroma in developing endosperm cells, and a domain of unknown function 1338 (DUF1338) that is highly conserved in green plants.
• Furthermore, our combined β-glucuronidase activity and RNA in situ hybridization assays showed that the FLO7 gene was expressed ubiquitously but exhibited a specific expression in the endosperm periphery.
• Moreover, a set of in vivo experiments demonstrated that the missing 32 aa in the FLO7 mutant protein are essential for the stable accumulation of FLO7 in the endosperm.

Function-related keywords:

• grain ,  starch ,  development ,  map-based-cloning ,  endosperm ,  endosperm-development ,  stroma

Literature:

• FLOURY ENDOSPERM7 encodes a regulator of starch synthesis and amyloplast development essential for peripheral endosperm development in rice .  DOI:  10.1093/jxb/erv469 ;  PMID:  26608643

Related News:

Gene Resources:

• NCBI ID:
• UniProt accessions:

Sequences: