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 TGCCAAAGGAGAGTTTCCCT GGCACCTCTCTTCCTTGGCAGA AAACCAGTTGCAGGGCACCTCTCTTCCTTGGCAGACAGTACTAATGGTGCCTATAGCTTCAAGCTGAGAGGGTATGCGAGAATCTTGATCCCAATATAGGCTTGCCAAAGGAGAGTTTCCCTGTGACCGTTT 3 2 3' arm Populus_tremula_x_Populus_tremuloides pmrd 100 ptc-MIR399h 6e-71 -46.7 ((((..((..(((((...(((((((..((((((..((.......))..(((((((((.....)).....(((....((((...))))..)))..))))))).)))))))))))))...)))))..)).)))) (-46.70)