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 TTCTCACCTCTCTCTTCTTTC GAGAAGGGAAAGATAAAGAAAT AGCAGAAGAAGAGAGAAGGGAAAGATAAAGAAATGAAATCCCTGCCTAACCCTCTCAAAGTAATATCCTTGAAAGTTTCAGAAGAGGTTACAGGGATGCTTCTCACCTCTCTCTTCTTTCTTATTAACA GGTTGTTGGTGGACCGCGTGATGGAGGTGGCACTGGAGCTCCTTTCTTGGCAACTAGGGCAAATTCTTCGGAGATGTTATCCATTTCTTCTATCAGATTCTAAGTAACCCTTCTCTTTCAAACTGTCTAAAGAGAAATGTATCCCCAATCCAATGCCAAGGTTTCGTCTTCCTTTTTCCACAGCAGAAGAAGAGAGAAGGGAAAGATAAAGAAATGAAATCCCTGCCTAACCCTCTCAAAGTAATATCCTTGAAAGTTTCAGAAGAGGTTACAGGGATGCTTCTCACCTCTCTCTTCTTTCTTATTAACAGAATTAGGGTTATTATAATGTTAAATCCAACGAACTGACACACTATTTTATAATTGATGGTGTTCTTTGATTTGAGCACCATCAAGTGCCCCTAGATATTATTTGTCTTCGTTTCAAGTAAAAAAAGCATTTTTATTTGTAATCCTT 4 1 3' arm Populus_trichocarpa mirnest 100 100 -32.4 .....((.(((((((((((((.((....((((.....(((((((..(((((.(((.(((.(((.....)))....))).)))...))))))))))))..))))...)).))))))))))))).)).... (-32.4)