library_construction_protocol: RNA library for RNA seq was prepared as follows:    mRNA was purified from total RNA using Oligo (dT) and then fragmented into 250 bp fragments, the first strand cDNA was reverse transcribed using fragmented RNA and dNTPs (dATP, dTTP, dCTP, and dGTP) and second strand cDNA synthesis was subsequently performed After regeneration of 3 'ends of DNA fragments, sequencing adapters were ligated to the cDNA and the library fragments were purified The template was enriched by PCR, and the PCR product was purified to retain the final library.    After passing the quality inspection of the library, PE125 sequencing was performed using the Illumina HiSeq 2500 platform.