Additional file 1: Table S1. of Cloning and expression of BpMYC4 and BpbHLH9 genes and the role of BpbHLH9 in triterpenoid synthesis in birch YinJing LiXin ZhanYaguang LiYing QuZiyue SunLu WangSiyao YangJie XiaoJialei 2017 List of primers used in the study. (DOCX 16 kb)