Figure 2.

Identification of transcribed microRNAs (miRNAs) in the developing maize anther. Numbers of identified (a) known and (b) potentially novel miRNAs were shown. The maize anther small RNA transcriptome data from two previous studies was reanalyzed here [37,38]. Sixty-one known miRNA groups and 51 potentially novel miRNA groups were used in the following analysis (marked in red). Transcription expression patterns of identified (c) 47 known and (d) 51 potentially novel miRNAs were categorized into four classes based on the reanalyzed results of Zhai et al.’s data with 10 anther developmental stage points [38]. Transcription expression levels of each miRNA group were normalized to Z-scores for data from Zhai et al., line L7 and line L30 separately.