Fig. 3. Polymerase chain reaction analysis of VHb (Vitreoscilla hemoglobin gene), tzs (trans-zeatin secretion gene), and EPSPS (5-enolpyruvylshikimate-3-phosphate synthase) in T₀ rice plant. Lanes: M, molecular weight marker (A) and (C) DL2000, (B) X174 HaeIII digest; P, positive control (amplified fragments from plasmid pYP1203E); C, a nontransformed control plant; X-1 and X-2, putative T₀ plants of ‘Xiushui-11’; Q-1 and 2, putative T₀ plants of ‘Qiufeng’; H-1, putative T₀ plants of ‘Hanfeng’; Y-1, putative T₀ plants of ‘Youfeng’.