RNA polymerase V is an enzyme involved in the process of RNA transcription in plants. This enzyme is also known as Pol V, RDR2 (RNA-Dependent RNA Polymerase 2), or NRPE1 (Nuclear RNA Polymerase E1). It is specific to plants and has been found to play a critical role in the regulation of gene expression, particularly in response to biotic and abiotic stresses. Pol V is unique compared to other RNA polymerases because it can synthesize dsRNA, which is then processed into siRNA.
In summary, RNA polymerase V is also called Pol V, RDR2, and NRPE1. It is essential for gene expression regulation and stress responses in plants.