TRANSGENIC PLANTS WITH ENHANCED AGRONOMIC TRAITS

摘要

This disclosure describes screening a population of transgenic plants derived from plant cells transformed with recombinant DNA for expression of proteins with homeobox domains to identify plant cells of specific transgenic events that are useful for imparting enhanced traits to transgenic crop plants. Traits include enhanced nitrogen use efficiency, increased yield, enhanced water use efficiency, enhanced tolerance to cold stress and/or improved seed compositions. Also disclosed are transgenic seeds for growing a transgenic plant having the recombinant DNA in its genome and exhibiting the screened enhance trait. Also disclosed are methods for generating seed and plants based on the transgenic events.

主权项

1. A plant cell with stably integrated, recombinant DNA comprising a promoter that is functional in plant cells and that is operably linked to DNA that encodes a protein having domains of amino acids in a sequence that exceed the Pfam gathering cutoff for amino acid sequence alignment with a Pfam Homeobox protein domain family and a Pfam HALZ protein domain family; wherein the Pfam gathering cuttoff for the Homeobox protein domain family is −4 and the and the Pfam gathering cuttoff for the HALZ protein domain family is 17; wherein said plant cell is selected from a population of plant cells with said recombinant DNA by screening plants that are regenerated from plant cells in said population and that express said protein for an enhanced trait as compared to control plants that do not have said recombinant DNA; and wherein said enhanced trait is selected from group of enhanced traits consisting of enhanced water use efficiency, enhanced cold tolerance, increased yield, enhanced nitrogen use efficiency, enhanced seed protein and enhanced seed oil.