Fig. 4

Relative HCT1 and HCT2 transcript levels in 39 independently-transformed plants targeted for simultaneous downregulation of HCT1 and 2 (HCT1/2Ri-xx) at 1Â month post sub-tillering. Expression of Ubq1 in these plants was analyzed and used to normalize HCT expression levels across plants. Relative treatment level values (horizontal axis) are normalized to the HCT2 control value set at 100%