library_construction_protocol: Genomic DNA and total RNA Total RNAs were extracted as described above. The VAHTS Total RNA-seq (H/M/R) Library Prep Kit for Illumina (VAHTS, #NR603) was used for RNA library preparation. In brief, 1 μg total RNAs were hybridized with the rRNA probe (H/M/R) and digested by RNase H to remove ribosomal RNAs. After DNase I digestion, the ribosomal-depleted RNAs were fragmented at 94°C for 8min. Then the first-strand and second-strand cDNAs were synthesized successively using the provided reagents. The cDNA was purified by VAHTS DNA Clean Beads (VAHTS, #NR411), followed by end repaired, dA-tailing, adapter ligation, and second strand cDNA digestion. After two-round of purification, the cDNAs was PCR-amplified and purified by VAHTS DNA Clean Beads. High- throughput sequencing was performed using Illumina HiSeq Xten (Illumina) platform with PE150 (pair-end sequencing, 150 bp reads).