Total RNA of T. gallinae was prepared with Trizol reagent according to the manufacturer’s protocol (Invitrogen Co. Ltd). Small RNA was prepared as described previously [20 (link)]. Briefly, small RNAs of 20–35 bases in length were isolated from 10 μg total RNA using a 15% TBE-Urea polyacrylamide gel. After adding the 5’ and 3’ adaptors (Illumina Co. Ltd), the fragments were reverse transcribed and then purified with 6% TBE PAGE gel. All gels and kits were purchased from Invitrogen Co. Ltd.
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