Patent ID: 8785722

Claim:
A method for selectively expressing a first polynucleotide of interest in progeny of a plant, comprising: (a) transforming said plant with a first construct comprising said polynucleotide operably linked to a first exogenous promoter, wherein said first plant further comprises a third construct comprising a pIR targeting a second exogenous promoter; (b) transforming a second plant with a second construct comprising a promoter inverted repeat (pIR) targeting said first exogenous promoter, wherein said second plant further comprises a fourth construct comprising a second polynucleotide of interest operably linked to said second exogenous promoter; (c) crossing said first and second plants; and (1) selecting progeny comprising said first and second constructs, where expression of said first polynucleotide of interest is not desired; and/or (2) selecting progeny comprising said first construct but not said second construct, where expression of said first polynucleotide of interest is desired.