Genetic reduction of male fertility in plants
AssigneesPioneer Hi-Bred International, Inc., E. I. Du Pont de Nemours and Company
InventorsMarc C Albertsen, Tim Fox, April L Leonard, Bailin Li, Brian R Loveland, Mary Trimnell
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Abstract
A nuclear maize gene is mutated to result in dominant male sterility. Two mutants are provided which impact signal peptide processing. Restoration constructs and methods are provided for use of the dominant male-sterile mutants in producing hybrid seed for male-sterile hybrid plants. Other signal-peptide modifications are provided. Orthologs of the wild type or mutated gene in various species are provided.
Claims12
A DNA construct comprising an isolated regulatory region of a maize Ms44 gene, wherein the Ms44 regulatory region is operably-linked to a heterologous polynucleotide of interest, wherein the Ms44 regulatory region initiates transcription of the heterologous polynucleotide of interest in a plant cell.
Dependencies are inferred from the claim text.