Os01g0178500

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The rice Os01g0178500 was reported as OsIAA1 in 2009 [1] by researchers from China.

Annotated Information

Function

  • Aux/IAA and auxin response factor (ARF) are two important families that have been well recognized for their roles in auxin-mediated responses.
  • OsIAA1 may play important roles in the cross-talk of auxin and brassinosteroid signaling pathways and plant morphogenesis.

Expression

  • The results indicated that OsIAA1 was constitutively expressed in all the tissues and organs investigated.
  • The expression of this gene was induced by various phytohormones including IAA, 2,4-D, kinetin, 24-epibrassinolide, and jasmonic acid.

Phenotypic analysis

  • Over-expression of OsIAA1 in rice resulted in reduced inhibition of root elongation to auxin treatment, but increased sensitivity to 24-epiBL treatment. In addition, the OsIAA1-overexpression transgenic plants showed distinctive morphological changes such as decreased plant height and loose plant architecture.

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Labs working on this gene

  • National Center of Plant Gene Research (Wuhan), National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China

References

  1. Song Y, You J, Xiong L. Characterization of OsIAA1 gene, a member of rice Aux/IAA family involved in auxin and brassinosteroid hormone responses and plant morphogenesis. Plant Mol Biol. 2009 Jun;70(3):297-309. doi: 10.1007/s11103-009-9474-1. PubMed PMID: 19266169.


Structured Information