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Transgenic Expression of the Arabidopsis etr1-1 Mutant Gene in PetuniaOn the left is a transgenic petunia line carrying the etr1-1 gene expressed using a CaMV35S promoter (line 44568 from Wilkinson et al., 1997). On the right is a control wild-type petunia line. Due to delayed corolla senescence, the transgenic line 44568 has 7 flowers open compared to the 2 open in the control line. (Photograph courtesy of David Clark, University of Florida)
