| abstract |
Novel hydroxyphenylpyruvate dioxygenase (HPPD) polypeptides, variants, and fragments thereof are provided, as well as polypeptides, variants, and fragments encoding polypeptides, variants, and fragments thereof that are capable of conferring commercial levels of HPPD herbicide resistance or tolerance to plants of polynucleotides. Amino acid sequences are provided including for HPPD polypeptides, and variants and fragments thereof, as well as polynucleotides encoding them. Also provided are methods for producing and using HPPD herbicide-resistant plants expressing these novel HPPD polypeptides, methods for selectively controlling weeds in fields at crop loci, and methods for determining, characterizing, identifying and Methods of selecting these novel HPPDs. |