Figure 1.

Validation of the DEM (differentially expressed miRNAs) in autotetraploid and diploid rice at each pollen development stage (pre-meiotic interphase (PMA), meiosis (MA) and single microspore stage (SCP)). U6 snRNA was used as an internal reference for the qRT-PCR. The x- and y-axis represent the miRNAs and relative expression levels, respectively. Error bars represent the standard deviation (SD) of three biological replicates. “4x” and “2x” represent the autotetraploid and diploid rice, respectively.