ETR2,Os-ERL1,OsETR2

2015-01-20 | Categories genes  | Tags panicle  ethylene  gibberellin  flower  stem  submergence  seed  starch  floral  seedlings  plasma membrane 

• Information
  • Symbol: ETR2,Os-ERL1,OsETR2
  • MSU: LOC_Os04g08740
  • RAPdb: Os04g0169100
• Publication
  • Identification and characterization of a novel water-deficit-suppressed gene OsARD encoding an aci-reductone-dioxygenase-like protein in rice, 2005, Gene.
  • Cloning of a cDNA encoding an ETR2-like protein Os-ERL1 from deep water rice Oryza sativa L. and increase in its mRNA level by submergence, ethylene, and gibberellin treatments, 2004, J Exp Bot.
  • The ethylene receptor ETR2 delays floral transition and affects starch accumulation in rice, 2009, Plant Cell.
  • The Differentiated Localized Rice Ethylene Receptors OsERS1 and OsETR2 and their Potential Role during Submergence., 2017, Plant Signal Behav.
• Genbank accession number
  • AF420319
• Key message
  • The effective panicles and seed-setting rate were reduced in the ETR2-overexpressing plants, while thousand-seed weight was substantially enhanced in both the ETR2-RNAi plants and the etr2 mutant compared with controls
  • Here, we characterized a subfamily II ethylene receptor, ETHYLENE RESPONSE2 (ETR2), in rice (Oryza sativa)
  • Overexpression of ETR2 in transgenic rice plants reduced ethylene sensitivity and delayed floral transition
  • Conversely, RNA interference (RNAi) plants exhibited early flowering and the ETR2 T-DNA insertion mutant etr2 showed enhanced ethylene sensitivity and early flowering
  • The ethylene receptor ETR2 delays floral transition and affects starch accumulation in rice
  • Cloning of a cDNA encoding an ETR2-like protein (Os-ERL1) from deep water rice (Oryza sativa L.) and increase in its mRNA level by submergence, ethylene, and gibberellin treatments
  • The GIGANTEA and TERMINAL FLOWER1/CENTRORADIALIS homolog (RCN1) that cause delayed flowering were upregulated in ETR2-overexpressing plants but downregulated in the etr2 mutant
  • Thus, ETR2 may delay flowering and cause starch accumulation in stems by regulating downstream genes
  • Furthermore, the expression of two genes for ethylene signal transduction, ETR2 and EIN3, increased in these RNAi transgenic plants, whereas the expression of ERF3 was suppressed
  • A cDNA from deep water rice treated with ethylene, encoding an ethylene receptor homologous to Arabidopsis thaliana ETR2 and EIN4, was isolated using differential display and RACE techniques
  • The cDNA (2880 bp), corresponding to the Os-ERL1 gene (Oryza sativa ETHYLENE RESPONSE 2 like 1; GenBank accession number AB107219), contained an open reading frame of 2289 bp coding for 763 amino acids
  • The Os-ERL1 gene was up-regulated by flooding, and by treatment with ethylene and gibberellin
  • Starch granules accumulated in the internodes of the ETR2-overexpressing plants, but not in the etr2 mutant
  • Furthermore, instead of the constitutive expression profile of OsERS1, OsETR2 is differentially expressed in seedlings of light/dark-grown conditions, submergence or exogenous ethylene treatments
  • Our results and others support the notion that OsERS1 and OsETR2 could have different roles during rice plant submergence
  • The Differentiated Localized Rice Ethylene Receptors OsERS1 and OsETR2 and their Potential Role during Submergence.
  • OsERS1 and OsETR2 are major ethylene receptors in rice that have been reported to have different regulatory functions
  • Base on the results, we suggested that OsERS1 could be localized to plasma membranes, whereas OsETR2 could be localized to the endoplasmic reticulum
• Connection
  • ETR2~Os-ERL1~OsETR2, OsEIL1~MHZ6, Identification and characterization of a novel water-deficit-suppressed gene OsARD encoding an aci-reductone-dioxygenase-like protein in rice, Furthermore, the expression of two genes for ethylene signal transduction, ETR2 and EIN3, increased in these RNAi transgenic plants, whereas the expression of ERF3 was suppressed
  • AP37~OsERF3, ETR2~Os-ERL1~OsETR2, Identification and characterization of a novel water-deficit-suppressed gene OsARD encoding an aci-reductone-dioxygenase-like protein in rice, Furthermore, the expression of two genes for ethylene signal transduction, ETR2 and EIN3, increased in these RNAi transgenic plants, whereas the expression of ERF3 was suppressed
  • ETR2~Os-ERL1~OsETR2, Rcn1~OsABCG5, The ethylene receptor ETR2 delays floral transition and affects starch accumulation in rice, The GIGANTEA and TERMINAL FLOWER1/CENTRORADIALIS homolog (RCN1) that cause delayed flowering were upregulated in ETR2-overexpressing plants but downregulated in the etr2 mutant

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