| 摘要 |
A method for producing transgenic plants with increased seed yield under stress relative to an untransformed but otherwise isogenic plant under stress comprises stably transforming plant host cells with a genetic construct comprising a promoter preferentially directing temporal and/or spatial gene expression in developing plant seed operably linked to a cytokinin modulating gene the n culturing the transformed cells and regenerating and recovering transgenic plants from the transformed cells. Also described are methods for improving stress tolerance and yield stability in plants, transgenic plants with increased seed yield under stress and isolated recombinant DNA comprises a promoter operably linked to a cytokinin-modulating gene, wherein the promoter I selected from maize 15KD zein, 22KD zein, 27KD gamma zein, waxy, shrunken-1, shrunken-2, globulin-1, cim-1, end1, end2 and gzw64a and barley Itp2 promoters.
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