Multicellular living organisms and unmodified parts thereof and – Method of introducing a polynucleotide molecule into or...
Reexamination Certificate
2011-01-11
2011-01-11
Baum, Stuart F. (Department: 1638)
Multicellular living organisms and unmodified parts thereof and
Method of introducing a polynucleotide molecule into or...
C800S290000, C800S287000, C800S298000, C800S320100, C800S312000, C536S023100, C536S023600, C435S320100
Reexamination Certificate
active
07868224
ABSTRACT:
Compositions and methods for suppressing the shade-avoidance response of plants and improving plant yield are provided. Compositions of the invention include an early flowering 3 (ELF3) maize gene, the promoter for this gene, anArabidopsisbasic helix-loop-helix transcription factor (bHLH-041), and fragments and variants thereof. The ELF3 promoter sequence is useful for driving expression of polynucleotides of interest in a plant. The ELF3 and bHLH-041 sequences of the invention, or variants and fragments thereof, are provided in expression cassettes for use in manipulating expression of the ELF3 and bHLH-041 genes. By increasing expression of ELF3 and/or suppressing expression of bHLH-041, the methods of the invention provide for altered response of a plant to light quality and suppression of the high-density-invoked survival mode of development. The invention thus provides methods for growing crop plants at high population densities for yield enhancement. Transformed plants having the altered shade-avoidance phenotype of the invention, and seeds of said plants, are also provided.
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Aukerman Milo J
Bate Nicholas J
Baum Stuart F.
E.I. Du Pont de Nemours & Co.
Pioneer Hi-Bred International , Inc.
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