Background DNA-dependent RNA polymerase IV and V (Pol IV and V) are multi-subunit
enzymes occurring in plants. The origin of Pol V, specific to angiosperms, from Pol IV, which …

Eukaryotes have three multisubunit DNA-dependent RNA polymerases that are essential for
viability, abbreviated as Pol I, Pol II, and Pol III. Remarkably, Arabidopsis thaliana and other …

Small RNA-mediated chromatin modification is a conserved feature of eukaryotes. In
flowering plants, the short interfering (si) RNAs that direct transcriptional silencing are …

Proteins often function as complexes, yet little is known about the evolution of dissimilar
subunits of complexes. DNA‐directed RNA polymerases (RNAP s) are multisubunit …

Plants are unique among eukaryotes in having five nuclear multisubunit RNA polymerases.
These include RNA polymerases I, II, and III (Pols I, II, and III), which are ubiquitous among …

Gene duplication is an important driver for the evolution of new genes and protein functions.
Duplication of DNA-dependent RNA polymerase (Pol) II subunits within plants led to the …

Unlike nuclear multisubunit RNA polymerases I, II, and III, whose subunit compositions are
conserved throughout eukaryotes, plant RNA polymerases IV and V are nonessential, Pol II …

Multisubunit RNA polymerases IV and V (Pol IV and Pol V) evolved as specialized forms of
Pol II that mediate RNA-directed DNA methylation (RdDM) and transcriptional silencing of …

Multifaceted roles of RNA polymerase IV in plant growth and development | Journal of
Experimental Botany | Oxford Academic Skip to Main Content Advertisement Oxford …

Multisubunit RNA polymerase (Pol) complexes are the core machinery for gene expression
in eukaryotes. The enzymes Pol I, Pol II and Pol III transcribe distinct subsets of nuclear …