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
ATGAAGAGGAGTTGGAACTTA AGGAATGGCTCTTCTTATGGC AAAGGAATGGCTCTTCTTATGGCGGAATTTGATAAGGTTAATAAGAAGCTTGGAGTTCGTAGGGAAGATCTACCAAAATATGAAGAGGAGTTGGAACTTA  7 0 3' arm Populus_trichocarpa_x_Populus_deltoides pmrd  100  100 -21.6 .(((...(((((((((((...(((((......((((.((......)).))))...))))).((.........))........)))))))))))...))). (-21.60)