title: Plant sample from Solanum tuberosum- short day petiole 3
design: Two to 3 cm petiole sections near the junction of the petiole and stem were excised and harvested. Total RNA was extracted from petioles using RNeasy mini kit (Qiagen). After validation of the quality of RNAs using the 2100 Bioanalyzer, approximately 3.0 µg of total RNA were used for library preparation and sequenced at the DNA Facility, Iowa State University.