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The rice Os03g0722400 was reported as OsDDM1b in 2012 [1] by researchers from Japan.

Annotated Information

Figure 1. Expression of OsDDM1 genes during development..[1].

Gene Symbol

  • Os03g0722400 <=> OsDDM1b


  • OsDDM1 genes function to silence endogenous loci including those related to retrotransposons in the rice genome, however, their roles on transposition of active.

transposons in the genome remains unknown.

  • Hypomethylation induced by the antisense OsDDM1 disturbs normal development.


  • OsDDM1a and OsDDM1b are expressed during development with slight variations among various tissues, suggesting that there might be functional divergence of these two genes (Fig. 1c).

Labs working on this gene

  • CREST, Japan Science and Technology Agency,Kawaguchi 332-0012, Japan
  • Department of Molecular Genetics, National Institute of Agrobiological Sciences, Tsukuba 305-8602, Japan
  • Department of Plant Science, University of Manitoba,Winnipeg R3T 2N2, Canada
  • Department of Integrated Genetics, National Institute of Genetics, Mishima 411-0801, Japan


  1. 1.0 1.1 Higo H, Tahir M, Takashima K, Miura A, Watanabe K, Tagiri A, Ugaki M, Ishikawa R, Eiguchi M, Kurata N, Sasaki T, Richards E, Takano M, Kishimoto N, Kakutani T, Habu Y. DDM1 (decrease in DNA methylation) genes in rice (Oryza sativa). Mol Genet Genomics. 2012 Oct;287(10):785-92. Epub 2012 Aug 24. PubMed PMID: 22915302.

Structured Information