Characterization of Small RNAs in Soybean Cotyledons.

<p>(A) Abundance and complexity distribution of small RNAs at each size in soybean cotyledons: The percentages of 253 million qualified small RNA reads at each given size (abundance, in blue) and the percentages of 41 million unique small RNA species at each given size (complexity, in red) are indicated on the Y-axis. Sizes of the small RNA reads are displayed on the X-axis. (B) Highly biased presence of U at 5′ ends of newly discovered cotyledon miRNAs: The percentages of 253 million qualified reads for each nucleotide at their 5′ end (blue column) and the percentages of newly discovered miRNA reads for each nucleotide at their 5′ end in cotyledons (red column) are shown on the Y-axis. The X-axis denotes nucleotides at the 5′ end of small RNAs or newly discovered miRNAs.