library_construction_protocol: Total RNA was extracted using the MasterPure RNA Purification kit (Lucigen) and residual DNA was removed using the Turbo DNA-free kit (Ambion). The integrity of the total RNA was assessed with an Agilent 2100 Bioanalyzer (Agilent Technologies). rRNA were removed using the Ribo-Zero Magnetic Kit (Epicentre). Gene expression analysis was conducted via Illumina RNA sequencing (RNA-seq). Libraries were produced using the KAPA RNA HyperPrep kit (Kapa Biosystems). Libraries were sequenced using the Illumina HiSeq platform with a single-end protocol and read lengths of 40 nt or 52 nt.