library_construction_protocol: Total RNA was purified using the Direct-zol RNA miniprep kit (Zymo Research) and 10 μg was digested with 20 units of Turbo DNaseI (Invitrogen) at 37 °C for 1 h. DNaseI was removed using the RNA clean and concentrator-25 kit (Zymo Research). Purified RNA samples were shipped to GeneWiz where bacterial rRNA depletion was performed with an NEBNext rRNA Depletion Kit (Cat. No. E7850X). Libraries were prepared by GeneWiz.