Os09g0410500

The rice gene Os09g0410500 was reported as REP1 in 2009 by researchers from China and UK.

Annotated Information

Gene Symbol

• Os09g0410500 <=> REP1, OsTCP24, REP1, TCP24, SDP1

Function

• 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.

Mutation

• 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.
• Furthermore, ectopic expression of REP1 caused the asymmetrical overdifferentiation of the palea cells, altering their floral asymmetry.

Expression

• 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.

Evolution

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Labs working on this gene

• School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China (Z.Y., S.G., L.-T.L., S.-Y.D., X.Y., D.-B.Z.);
• State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China (D.-W.X., Q.Q.); Key Laboratory of Molecular Genetics, Shanghai Institute of Plant Physiology and Ecology, Graduate School of the Chinese Academy of Sciences, Shanghai 200032, China (D.L.);
• Plant Sciences Division, School of Biosciences, University of Nottingham, Loughborough, Leicestershire LE12 5RD, United Kingdom (Z.A.W.)