REP1

2022-11-15 | Categories genes  | Tags palea  floral  stamen  flower  vascular bundle  lemma  transcription factor 

• Information
  • Symbol: REP1
  • MSU: LOC_Os09g24480
  • RAPdb: Os09g0410500
• PSP score
  • LOC_Os09g24480.1: 0.973
• PLAAC score
  • LOC_Os09g24480.1: 0
• pLDDT score
  • NA
• Publication
  • An AT-hook gene is required for palea formation and floral organ number control in rice, 2011, Dev Biol.
  • RETARDED PALEA1 controls palea development and floral zygomorphy in rice, 2009, Plant Physiol.
• Genbank accession number
  • EU702407
• Key message
  • The DP1 enhancer SDP1 was also positional cloned, and was found identical to the recently reported RETARDED PALEA1 (REP1) gene encoding a TCP family transcription factor
  • Here we show that floral zygomorphy along the lemma-palea axis in rice (Oryza sativa) is partially or indirectly determined by the CYCLOIDEA (CYC)-like homolog RETARDED PALEA1 (REP1), which regulates palea identity and development
  • The REP1 gene is only expressed in palea primordium during early flower development, but during later floral stages is radially dispersed in stamens and the vascular bundles of the lemma and palea
  • Furthermore, ectopic expression of REP1 caused the asymmetrical overdifferentiation of the palea cells, altering their floral asymmetry
  • The development of palea is significantly retarded in the rep1 mutant and its palea has five vascular bundles, which is similar to the vascular pattern of the wild-type lemma
• Connection
  • DP1, REP1, An AT-hook gene is required for palea formation and floral organ number control in rice, The DP1 enhancer SDP1 was also positional cloned, and was found identical to the recently reported RETARDED PALEA1 (REP1) gene encoding a TCP family transcription factor
  • DP1, REP1, An AT-hook gene is required for palea formation and floral organ number control in rice, We further found that SDP1/REP1 is downstreamly regulated by DP1

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