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In plants, RNA polymerase II (Pol II) transcription of inverted DNA repeats produces hairpin RNAs that are processed by several DICER-LIKE enzymes into siRNAs that are 21-24-nt in length. When targeted to transcriptional regulatory regions, the 24-nt size class can induce RNA-directed DNA methylatio...
ORGANISM(S): Arabidopsis thaliana 
Promoters of many G2/M phase-specific genes in plants contain mitosis-specific activator (MSA) elements, which act as G2/M phase-specific enhancers and bind with R1R2R3-Myb transcription factors. A least three R1R2R3-Myb proteins are expressed in tobacco (Nicotiana tabacum). To examine the genome-wi...
ORGANISM(S): Nicotiana tabacum 
Tobacco BY-2 cells can be highly synchronized by treatment with an inhibitor of DNA synthesis, aphidicolin. For comprehensive understanding of cell cycle-regulated gene expression in tobacco, microarray analysis was conducted in synchronized cultures of BY-2 cells. Cells were treated with aphidicoli...
ORGANISM(S): Nicotiana tabacum 
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