Nt: number of nucleotides of the mature miRNA. HTD: RB867515 (higher drought tolerance) plants under drought stress (without watering). HTI: RB867515 plants under irrigation. LTD: RB855536 (lower drought tolerance) under drought stress. LTI: RB855536 (lower drought tolerance) plants under irrigation. In the last two columns, negative values indicate down-regulated miRNAs and positive values indicate miRNAs that are up-regulated during drought. Asterisks indicate minimum fold change >2.00 and p<0.05.