Figure 2

GUS expression patterns directed by the tCUP1 promoter in transgenic rice. A. Binary vector for tCUP1 promoter analysis which was fused with the GUS reporter gene and also controlled the HPT gene used for selection. B. The tCUP1 controlled GUS gene was expressed in transformed callus (c) and various organs of T₁ transgenic rice including the root tip (a), leaf (d) and anther (e), but was absent in lateral roots (b) and the ovary (f). Bar=0.5 mm in (a) and (b), 1 mm in (c), (d), (e) and (f).