The present invention is directed to nucleic acids encoding polypeptides that confer upon a plant tolerance to an imidazolinone and/or other acetohydroxyacid synthase (AHAS) inhibiting herbicide when expressed in the plant. The present invention also provides plants having increased tolerance to an imidazolinone and/or other AHAS-inhibiting herbicide. More particularly, the present invention includes plants containing at least one IMI nucleic acid. The present invention also includes seeds produced by these plants and methods of controlling weeds in the vicinity of these wheat plants.
