library_construction_protocol: RNA was extracted using RNeasy plus micro kit (Qiagen) and 5 to 15 ng used as input material for library preparation. Libraries were generated with the NEBNext® Single Cell/Low Input RNA Library Prep Kit for Illumina (NEB) according to manufacturer's instructions. The pooled libraries were quantified with KAPA Library Quantification Kit for Illumina (Kapa Biosystems) and sequenced (paired end 150nt) on an Illumina NovaSeq 6000 system (Illumina).