Methods and compositions are provided related to improved plants that are
tolerant to more than one herbicide. Particularly, the invention provides
plants that are tolerant of glyphosate and are tolerant to at least one
ALS inhibitor, and methods of use thereof. The glyphosate/ALS
inhibitor-tolerant plants comprise a polynucleotide that encodes a
polypeptide that confers tolerance to glyphosate and a polynucleotide
that encodes an ALS inhibitor-tolerant polypeptide. In specific
embodiments, a plant of the invention expresses a GAT polypeptide and an
HRA polypeptide. Methods to control weeds, improve plant yield, and
increase transformation efficiencies are provided.