library_construction_protocol: RNA was harvested using ISOGEN reagent (Life Technologies, Carlsbad, CA, USA). Purified total RNA (200 ng) was used for RNA library preparation, according to the instructions of the Quant Seq 3' mRNA-seq library preparation kit FWD of Illumina (Lexogen, Vienna, Austria). The RNA libraries were sequenced on an Illumina NextSeq 500 system with 75-nt-long reads.