Relative expression analysis of miRNAs in the flower buds of the A line and B line by high-throughput sequencing and qRT-PCR analysis. Relative expression level was normalized to the expression level of 5.8SrRNA in qRT-PCR. All qRT-PCR reactions were prepared in triplicate for each sample. Left indicates the miRNA relative expression level generated from the high-throughput sequencing. Right indicates the miRNA relative expression level obtained by using qRT-PCR analysis.