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Expression profiles of miR390, TAS3 precursor, ARF3, and ARF4 in plants under drought stress. Expression profiles of tasiRNA-ARF pathway-related genes were analyzed in rdr6 mutants and wild-type plants subjected to a 5 hr drought stress and nonstressed conditions by RT-qPCR. The bar graphs indicate relative expression compared to ACT2. Values represent the mean and standard deviation of three experiments.
