ROOT-PREFERRED PROMOTERS AND THEIR USE

摘要

The present invention provides compositions and methods for regulating expression of heterologous nucleotide sequences in a plant. Compositions include a novel nucleotide sequence for a root-preferred promoter for the ge ne encoding Knox1, a Kn1-like homeobox gene and sequences isolated therefrom. A method for expressing a heterologous nucleotide sequence in a plant using th e promoter sequences disclosed herein is provided. The method comprises stabli ng incorporating into the genome of a plant cell a nucleotide sequence operably linked to the root-preferred promoter of the present invention and regenerating a stably transformed plant that expresses the nucleotide sequen ce.