Involvement of RDR6 in short-range intercellular RNA silencing in Nicotiana benthamiana

In plants, non-cell autonomous RNA silencing spreads between cells and over long distances. Recent work has revealed insight on the genetic and molecular components essential for cell-to-cell movement of RNA silencing in Arabidopsis. Using a local RNA silencing assay, we report on a distinct mechani...

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Detalles Bibliográficos
Autores principales: Qin, Cheng, Shi, Nongnong, Gu, Mei, Zhang, Hang, Li, Bin, Shen, Jiajia, Mohammed, Atef, Ryabov, Eugene, Li, Chunyang, Wang, Huizhong, Liu, Yule, Osman, Toba, Vatish, Manu, Hong, Yiguo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2012
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3381291/
https://www.ncbi.nlm.nih.gov/pubmed/22737403
http://dx.doi.org/10.1038/srep00467
Descripción
Sumario:In plants, non-cell autonomous RNA silencing spreads between cells and over long distances. Recent work has revealed insight on the genetic and molecular components essential for cell-to-cell movement of RNA silencing in Arabidopsis. Using a local RNA silencing assay, we report on a distinct mechanism that may govern the short-range (6–10 cell) trafficking of virus-induced RNA silencing from epidermal to neighbouring palisade and spongy parenchyma cells in Nicotiana benthamiana. This process involves a previously unrecognised function of the RNA-dependent RNA polymerase 6 (RDR6) gene. Our data suggest that plants may have evolved distinct genetic controls in intercellular RNA silencing among different types of cells.

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