Os02g0736200

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The rice Os02g0736200 was reported as OsRDR1 in 2014 [1] by researchers from China.

Annotated Information

Figure 6. Effects of null mutation of OsRDR1 on phenotypes under normal and abiotic stress conditions in rice.[1].

Gene Symbol

  • Os02g0736200 <=> OsRDR1,RDR1

Function

  • OsRDR1 plays a role in regulating a substantial number of endogenous genes with diverse functions in rice through smRNA-mediated pathways involving DNA methylation, and which participates in abiotic stress response.
  • OsRDR1 has a potential function in stress response in rice, but the effects are contingent with presence of stresses without exerting protracted influence when the stresses are removed.

Expression

  • No phenotypic difference was found between Osrdr1 and WT under normal condition, but significant ephemeral phenotypic differences between the two genotypes emerged in some of the different stress conditions (Figure 6).
  • (1) seedlings of Osrdr1 were more sensitive than WT to salt and overdose NO treatments, as being reflected by reduced plant height, root length and biomass at the seedling stage, with the difference in plant height and root length being persisted to the heading stage after removal of the stresses;
  • (2) Seedlings of Osrdr1 showed increased tolerance to heavy metal Cu 2+ /Hg 2+ as indicated by in- creased root length, but upon removal of the stresses the differences were gradually attenuated and completely disappeared at the heading stage;
  • (3) When both unstressed and the transiently-stressed plants of the mutant and WT were grown to maturity, no difference in plant height, tiller number, panicle and kernel traits was observed between the two genotypes.

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Labs working on this gene

  • Key Laboratory of Molecular Epigenetics of Ministry of Education (MOE), Northeast Normal University, Changchun 130024, China
  • Faculty of Agronomy, Jilin Agricultural University, Changchun 130118, China
  • Jilin Academy of Agricultural Sciences, Changchun 130033, China.
  • School of Food Production Technology and Biotechnology, Changchun Vocational Institute of Technology, Changchun, China.
  • Commonwealth Scientific and Industrial Research Organisation Plant Industry, Canberra, Australian Capital Territory 2601, Australia.

References

  1. 1.0 1.1 Wang N, Zhang D, Wang Z, Xun H, Ma J, Wang H, Huang W, Liu Y, Lin X, Li N, Ou X, Zhang C, Wang MB, Liu B. Mutation of the RDR1 gene caused genome-wide changes in gene expression, regional variation in small RNA clusters and localized alteration in DNA methylation in rice. BMC Plant Biol. 2014 Jun 30;14:177. doi: 10.1186/1471-2229-14-177. PubMed PMID: 24980094; PubMed Central PMCID: PMC4083042.

Structured Information