Abstract: Novel hydroxyphenyl pyruvate dioxygenase (HPPD) polypeptides, variants and fragments thereof, as well as polynucleotides encoding the same, capable of conferring commercial levels of conferring HPPD herbicide resistance or tolerance to plants. Compositions include amino acid sequences, and variants and fragments thereof, for HPPD polypeptides, as well as polynucleotides encoding the same. Methods for the production and use of HPPD herbicide resistant plants that express these novel HPPD polypeptides, methods for selectively controlling weeds in a field at a crop locus, and methods for characterization, identification and selection of these novel HPPDs are also provided.

Abstract: The present disclosure relates to, inter alia, methods and compositions for weed control, for example, a method of selectively controlling weeds at a locus comprising crop plants and weeds by applying to the locus a weed controlling amount of a pesticide composition comprising a SDPS-inhibiting herbicide, wherein the crop plants are modified such that they comprise a SDPS which provides the crop plant with tolerance against the SPDS-inhibiting herbicide. Compositions also include, inter alia, recombinant polynucleotides suitable for use in the methods.