Os01g0197700

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The rice gene Os01g0197700 was reported as Gn1a in 2005[1] by researchers from China and Japan.

Annotated Information

Gene Symbol

  • Os01g0197700 <=> Gn1a, OsCKX2, CKX2, ckx2, Gn1a/OsCKX2, Os CKX2, CKX2/Gn1a

Function

  • Gn1a is a quantitative trait loci (QTLs) that increases grain productivity in rice.
  • Gn1a, is a gene for cytokinin oxidase/ dehydrogenase (OsCKX2), an enzyme that degrades the phytohormone cytokinin.

Mutation

  • Reduced expression of OsCKX2 causes cytokinin accumulation in inflorescence meristems and increases the number of reproductive organs, resulting in enhanced grain yield.

Expression

Evolution

Phylogenetic relationship of CKX proteins in rice and Arabidopsis. [1].

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Labs working on this gene

  • Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan.
  • Plant Science Center, RIKEN, Tsurumi, Yokohama 230-0045, Japan.
  • Honda Research Institute Japan Co., Ltd., Kisarazu, Chiba, 292- 0818 Japan.
  • China National Rice Research Institute, Hangzhou, 310006, China.

References

  1. 1.0 1.1 Ashikari M, Sakakibara H, Lin S, et al. Cytokinin oxidase regulates rice grain production[J]. Science, 2005, 309(5735): 741-745.


Structured Information