=CONCATENATE("RNASeq_", "Arabidopsis_", A18)
Library preparation was performed with a TruSeq RNA Sample Prep Kit (Illumina) and between 11 million and 24 million single-end 50-bp reads were sequenced per sample with Illumina HiSeqTM 2000 in three lanes, multiplexed with 12 samples per lane. Reads were cleaned from adaptors and trimmed to 51bp using the program Trimmomatic version 0.32 (Bolger et al., 2014).