design: The 3UTR library libraries were prepared with 500 ng of total RNA using Lexogens QuantSeq 3 mRNA-Seq Library Prep Kit REV for Illumina (Moll et al., 2014), according to the manufacturers instructions. The libraries were sequenced using on the Illumina NextSeq500 sequencing platform at the Genomics Facility of the Institute of Molecular Biology & Biotechnology, Forth, Crete, Greece to produce 75 bp single-end reads for each sample.