Os07g0176600
The rice Os07g0176600 was reported as OsNek3 in 2009 [1] by researchers from Japan.
Contents
Annotated Information
Gene Symbol
- Os07g0176600 <=> OsNek3, OsSTA192
Function
- OsNek3 might play a role in pollen germination.
- OsNek3 is downstream of DCW11 in retrograde signaling from the mitochondria to the nucleus and is involved in CW-CMS.
Phenotypic analysis
- A knockout mutant with Tos17 inserted into OsNek3 did not show any pollen-defective phenotype.
- On the other hand, plants overexpressing OsNek3 occasionally produced a peculiar pollen structure in which the outer cell wall of four pollen grains fused together even at the mature pollen stages, which resembled that of quartet mutants in Arabidopsis.
- OsNek3 was shown to interact with a LIM domain-containing protein, OsPLIM2b, whose expression was strongly specific in mature pollen
- OsNek3 was shown to be down-regulated in DCW11-knockdown lines, whereas osnek3 mutation did not result in DCW11 down-regulation.
Expression
- OsNek3 was preferentially expressed in mature pollen.
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Labs working on this gene
- Laboratory of Environmental Biotechnology, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutumidori-Amamiyamachi, Aoba-ku, Sendai, 981-8555 Japan
References
- ↑ Fujii S, Yamada M, Toriyama K. Cytoplasmic male sterility-related protein kinase, OsNek3, is regulated downstream of mitochondrial protein phosphatase 2C, DCW11. Plant Cell Physiol. 2009 Apr;50(4):828-37. doi: 10.1093/pcp/pcp026. PubMed PMID: 19224952.