title: root tissue collected 0 weeks after cutting the root
design: Total RNA was extracted from roots samples, were collected at 0,2,4 week for RNA extraction. In this study, 0 day was the control group, and 2 week and 4 week were treatment groups. Totally, 30 RNAs (three control groups and two treatment groups) were extracted using the TRIzol method(Rio, Ares, Hannon, & Nilsen, 2010).