Analysis of sequence length and conservation of miRNAs.

(A)Distribution of small RNAs with different sequence length according to clean reads and unique tags. (B) Conservation of the identified miRNAs with those in other species. The x-axis represents the number of conserved miRNAs and the y-axis indicates the top 20 number in other species. Different prefixes indicating different species are as follows: Br-Brassica rapa; Sl-Solanum lycopersicum; Cp-Carica papaya; Cs-Citrus sinensis; Rc-Ricinus communis; Bn-Brassica napus; Tc-Theobroma cacao; Nt-Nicotiana tabacum; St-Solanum tuberosum; Mt-Medicago truncatula; Al-Arabidopsis lyrata; Pp-Prunus persica; At-Arabidopsis thaliana; Lu-Linum usitatissimum; Cm-Cucumis melo; Vv-Vitis vinifera; Me-Manihot esculenta; Md-Malus domestica; Pt-Populus trichocarpa; Gm-Glycine max.