Small RNAs play a number of vital roles in plants, including viral resistance. A particular class of small RNA that regulates plant defense from pathogens, among other functions, is known as small interfering RNAs (siRNAs). A key player in the biogenesis pathway of siRNAs are RNA-Dependent RNA Polymerases (RDRs). There are six RDR proteins in Arabidopsis thaliana, three of which have well documented roles (RDRs 1, 2 and 6), and three of which have no documented role. Here, we look at the functions of the unstudied RDRs, RDRs 3, 4 and 5, to see whether they affect antiviral resistance.
Kallison, Eli R.; Beric, Aleksandra; and Meyers, Blake
"Exploration of Antiviral Effects of RNA-dependent RNA Polymerases 3, 4 and 5 in Arabidopsis.,"
IdeaFest: Interdisciplinary Journal of Creative Works and Research from Humboldt State University: Vol. 4
, Article 4.
Available at: https://digitalcommons.humboldt.edu/ideafest/vol4/iss1/4