Gene Details:

• MSU gene ID: LOC_Os09g03610
• RAPdb gene ID: Os09g0123200
• Gene Symbol: FCA OsFCA
• Genome: MSU7 ,  IRGSP-1.0
• Species: Oryza sativa

Functional Descriptions:

• The FCA/FY interaction is also required for the regulation of FLC expression, a major floral repressor in Arabidopsis.
• The expression of OsFCA-1 is steady in the leaves of three different stage, but up-regulated in young spikelet of primary branch-differentiating stage and down-regulated in young spikelet of pistil and stamen-differentiating stage.
• In order to acquire further insight into the control of heading dates in rice, we isolated and conducted an expression analysis on OsFCA, which exhibited 38% sequence homology with Arabidopsis FCA.
• The FCA floral promotion gene in Arabidopsis encodes a protein, containing two RNA recognition motifs (RRM) and a WW protein interaction domain.
• Survey of rice proteins interacting with OsFCA and OsFY proteins which are homologous to the Arabidopsis flowering time proteins, FCA and FY.
• Recently, alternative RNA processing of OsFCA was observed in rice, which strongly suggested the existence of an autonomous flowering pathway in rice.
• The beta and gamma transcripts of the OsFCA gene were detected via Northern analysis in the leaves, roots, and flowers of the plant.
• The FCA protein is involved in controlling flowering time and plays more general roles in RNA-mediated chromatin silencing in Arabidopsis.
• FCA and FY are flowering time related genes involved in the autonomous flowering pathway in Arabidopsis.
• The overexpression of OsFCA cDNA, driven by the 35S promoter, was shown to partially rescue the late flowering phenotype of the fca mutant, suggesting that the functions of the OsFCA and the FCA are partially overlapped, despite the lack of an apparent FLC homologue in the rice genome.
• These results indicate that the autonomous flowering pathway is present in monocots, and the regulation through FY and FCA interaction is conserved between monocots and dicots.

Function-related keywords:

• floral ,  stamen ,  heading-date ,  spikelet ,  flowering-time ,  flower ,  root

Literature:

• Overexpression of the rFCA RNA recognition motif affects morphologies modifications in rice (Oryza sativa L.) .  DOI:  10.1007/s10540-007-9047-y ;  PMID:  17597396
• OsFY, a homolog of AtFY, encodes a protein that can interact with OsFCA-gamma in rice (Oryza sativa L.) .  DOI:  10.1111/j.1745-7270.2006.00188.x ;  PMID:  16820865
• Survey of rice proteins interacting with OsFCA and OsFY proteins which are homologous to the Arabidopsis flowering time proteins, FCA and FY .  DOI:  10.1093/pcp/pcp093 ;  PMID:  19561057
• Conservation and divergence of FCA function between Arabidopsis and rice .  DOI:  10.1007/s11103-005-8105-8 ;  PMID:  16240176
• NA .

Related News:

Gene Resources:

• NCBI ID: AY730687
• UniProt accessions:

Sequences: