library_construction_protocol: Seeds were planted in pots containing commercial potting mix with fertilizers. Pots were covered with clear perforated plastic wrap and kept at 4 degrees celsius for 3 days to break the dormancy. After 3 days plants were transferred to the Intellus Ultra growth chamber (Percival Scientific, IA, USA) which was set to temperature 22-23 degrees celsius, light intensity 120-150 micromol/m2sec under the cycle of 16h light and 8h dark. Soil was kept moist by gently spraying with water every 72 hours to maintain humidity to 50-60%. Sampling time point is given in days after germination. Total RNA from frozen samples was extracted as a method described in Filichkin et al., 2010. Total RNA was used to isolate large RNA as per manufacturer's protocol for miRNeasy Mini kits (Qiagen Inc., USA), and RNase-free DNase (Life Technologies Inc., USA). True-Seq kit (Illumina Inc.) was used to prepare RNA-seq libraries, according to the manufacturerâ€™s protocol.