mature_miRNA miRNA* pre-miRNA EST_contig mismatches bulges arm species source_database RFAM_best_hit RFAM_lowest_evalue miRBase_best_hit miRBase_lowest_evalue folding_energy secondary_structure TCGCTTGGTGCAGGTCGGGAA CCCGCCTTGCATCAACTGAAT GGTCTCTGATTCGCTTGGTGCAGGTCGGGAACTGATTCGGCGATTTGATTGCCAGATGGCTCGACATGACTGGTTGTTGTGGAAAAAGAAAAGGAAGGAAACAGGAAAAAAAACAAAGAATAGCGAATTGGATCCCGCCTTGCATCAACTGAATCGGAGG 3 0 5' arm Populus_trichocarpa pmrd MIR168 1e-38 ptc-MIR168a 8e-40 -61 ...((((((((((.((((((((((.(((((.(..(((((.(..((((...(((....)))....((..((.....))..))...............(....)...........)))).....))))))..).))))).)))))))))).)))))))))). (-61.00)