#$%^&*AU2016200537A120160218.pdf#####ABSTRACT The present invention relates to method for generating plants having altered architecture by introducing into plants, isolated nucleic acid molecules that can be used to produce transgenic plants characterized by altered plant architecture, carbon and nitrogen partitioning, enhanced biomass and or improved harvestable yield and to plants so generated and parts of these plants. More particularly, the present invention relates to a method for modifying a plant so as to produce a plant exhibiting an altered phenotype. Also provided are isolated nucleic sequence that encodes GAD polypeptide, vectors capable of expressing such nucleic acid molecules, host cells containing such vectors, and polypeptide encoded by such nucleic acids.