摘要:
This invention provides recombinant DNA constructs, transgenic plant nuclei and cells with such recombinant DNA construct for expression of proteins that are useful for imparting enhanced agronomic trait(s) to transgenic crop plants. This invention also provides transgenic plants and progeny seed comprising the transgenic plant cells where the plants are selected for having an enhanced trait selected from the group of traits consisting of enhanced water use efficiency, enhanced cold tolerance, increased yield, enhanced nitrogen use efficiency, enhanced seed protein and enhanced seed oil. Also disclosed are methods for manufacturing transgenic seed and plants with enhanced traits.
摘要:
This invention provides transgenic plant cells with recombinant DNA for expression of proteins that are useful for imparting enhanced agronomic trait(s) to transgenic crop plants. This invention also provides transgenic plants and progeny seed comprising the transgenic plant cells where the plants are selected for having an enhanced trait selected from the group of traits consisting of enhanced water use efficiency, enhanced cold tolerance, increased yield, enhanced nitrogen use efficiency, enhanced seed protein and enhanced seed oil. Also disclosed are methods for manufacturing transgenic seed and plants with enhanced traits.
摘要:
The invention discloses a transgenic method for producing parthenocarpic fruits or fruits with reduced seed number. It involves the temporal expression of a plant hormone or precursor or other such gene so that gibberellin or other similar hormonal activity involved in initiating fruit set activity is potentiated. The gene is operably linked to a regulatory promoter so that expression is timed prior to pollen development or fertilization. Expression of the hormone causes fruit development in the absence of fertilization. The method also results in a fruit that has diminished or very little seed. The invention also includes transgenic constructs, vectors, and methods for production of the parthenocarpic plants.
摘要:
Genes controlling gibberellic biosynthesis are used in genetic engineering to alter plant development. Alterations in the nature or quantity of products of the genes affects plant development. A family of An genes in monocots encodes a cyclase involved in the early steps of gibberellic acid (GA) biosynthesis. Members of the family are identified in wheat, barley, sorghum and maize. Two members of the family, the genes An1 and An2, are identified in maize. The An1 gene is cloned and the function of the gene is characterized. An2 is isolated and identified by homology to An1. Using recombinant genetic technology, GA levels are manipulated. Changes in GA levels alter monocot plant phenotypes, for example, increasing or decreasing height and fertility.
摘要:
Genes controlling gibberellic biosynthesis are used in genetic engineering to alter plant development. Alterations in the nature or quantity of products of the genes affects plant development. A family of genes in monocots encodes a cyclase involved in the early steps of gibberellic acid (GA) biosynthesis. A member of the family, the gene An1, is identified in maize and cloned and the function of the gene is characterized. Using recombinant genetic technology, GA levels are manipulated. Changes in GA levels alter monocot plant phenotypes, for example, height and fertility.
摘要:
Genes controlling gibberellic biosynthesis are used in genetic engineering to alter plant development. Alterations in the nature or quantity of products of the genes affects plant development. A family of genes in monocots encodes a cyclase involved in the early steps of gibberellic acid (GA) biosynthesis. A member of the family, the gene An1, is identified in maize and cloned and the function of the gene is characterized. Using recombinant genetic technology, GA levels are manipulated. Changes in GA levels alter monocot plant phenotypes, for example, height and fertility.