Os09g0457900

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The rice Os04g0459000 was reported as OsEATB in 2011 [1] by researchers from China. [1]

Annotated Information

Figure 6. Effect of transgenic OsEATB on rice yield traits.[1].

Function

  • Plant height is a decisive factor in plant architecture. Rice (Oryza sativa) plants have the potential for rapid internodal elongation, which determines plant height. A large body of physiological research has shown that ethylene and gibberellin are involved in this process.
  • The APETALA2 (AP2)/Ethylene-Responsive Element Binding Factor (ERF) family of transcriptional factors is only present in the plant kingdom.
  • OsEATB reduces rice plant height and panicle length at maturity, promoting the branching potential of both tillers and spikelets.
  • OsEATB Is a Novel Rice AP2/ERF
  • OsEATB Negatively Regulates Ethylene-Induced Enhancement of GA Responsiveness by Reducing GA Biosynthesis
  • OsEATB Regulates Rice Yield Components through the Promotion of Tillering and Panicle Branching

Phenotypic analysis

  • Overexpression of OsEATB Decreases the Endogenous GA Level in Rice

Expression

  • OsEATB Expression Is Negatively Regulated by Ethylene, ABA, and Abiotic Stress in Rice
  • Ectopic expression of OsEATB showed that the cross talk between ethylene and gibberellin, which is mediated by OsEATB, might underlie differences in rice internode elongation.
  • Analyses of gene expression demonstrated that OsEATB restricts ethylene-induced enhancement of gibberellin responsiveness during the internode elongation process by down-regulating the gibberellin biosynthetic gene, ent-kaurene synthase A.

Labs working on this gene

  • State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University,Shanghai 200433, China.
  • Key Laboratory of Analytical Chemistry for Biology and Medicine, Department of Chemistry, Wuhan University, Wuhan 430072, China.


References

  1. ↑ 1.0 1.1 1.2 Weiwei Qi, Fan Sun, Qianjie Wang, Mingluan Chen, Yunqing Huang, Yu-Qi Feng, Xiaojin Luo, and Jinshui Yang(2011) Rice Ethylene-Response AP2/ERF Factor OsEATB Restricts Internode Elongation by Down-Regulating a Gibberellin Biosynthetic Gene. Plant Physiol 157:216-228.

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