Transgenic plants that are resistant to Sclerotinia or Phoma lingam are described as well as methods for producing such tranagenic plants. The transgenic plants include nucleic acid constructs that encode a chitinase polypeptide, a β-1,3-glucanase polypeptide, an osmotin polypeptide, and a pat
Transgenic plants that are resistant to Sclerotinia or Phoma lingam are described as well as methods for producing such tranagenic plants. The transgenic plants include nucleic acid constructs that encode a chitinase polypeptide, a β-1,3-glucanase polypeptide, an osmotin polypeptide, and a pathogenesis-related-1 polypeptide.
대표청구항▼
What is claimed is: 1. A transgenic plant comprising at least one nucleic acid construct, wherein said at least one construct comprises a) a regulatory element operably linked to a nucleic arid encoding a chitinase polypeptide; b) a regulatory clement operably linked to a nucleic acid encoding a
What is claimed is: 1. A transgenic plant comprising at least one nucleic acid construct, wherein said at least one construct comprises a) a regulatory element operably linked to a nucleic arid encoding a chitinase polypeptide; b) a regulatory clement operably linked to a nucleic acid encoding a β-1,3-glucanase polypeptide; c) a regulatory element operably linked to a nucleic acid encoding an osmotin polypeptide; and d) a regulatory element operably linked to a nucleic acid encoding a pathoenesis-related (PR1) polvi,einide, wherein said transgenic plant is resistant to Sclerotinia relative to a conesponding control plant. 2. The transgenic plant of claim 1, wherein said plant is a Cruciferae plant. 3. The transgenic plant of claim 1, wherein said plant is selected from the group consisting of Brassica napus, Brasstca juncea, Brassica nigra, Brassica oleracae, Brassica carinata and Brassica rapa. 4. The transgenic plant of claim 1, wherein said plant is Helianthus annuus. 5. The transgenic plant of claim 1, wherein said PR1 polypeptide is intraceilularly expressed. 6. The tranagenic plant of claim 1, wherein said PR1 polypeptide is from tobacco, parsley, Brassica napus, or Arabidopsis thaliana. 7. The tranagenic plant of claim 1, wherein said chitinase polypeptide is from tobacco, bean, cucumber, tomato, Arabidopsis thaliana, or bacteria. 8. The transgenic plant of claim 7, wherein said chitinase polypeptide is intracellularly expressed. 9. The transgenic plant of claim 1, wherein said β-1,3-glucanase polypeptide is from pea, soybean, tobacco, bean, rice, cucumber, or tomato. 10. The transgenic plant of claim 9, wherein said β-1,3-glucanase polypeptide is intracellularly expressed. 11. The tranagenic plant of claim 1, wherein said osmotin polypeptide is from tobacco, soybean, carrot, cotton, potato, or bean. 12. The tranagenic plant of claim 1, wherein said chitinase, β-1,3-glucanase, and osmotin polypeptides are constitutively expressed in the stem of said transgenic plant. 13. The transgenic plant of claim 1, wherein said chitinase, β-1,3-glucauase, and osrnotin polypeptides are constitutively expressed in leaves of said transgenic plant. 14. The transgenic plant of claim 1, wherein said transgenic plant is resistant to Scierotinia on the stem. 15. The transgenic plant of claim 1, wherein said transgenic plant is resistant to Scierotinia on the leaves. 16. A transgenic plant comprising four nucleic acid constructs, each said construct comprising a regulatory element operably linked to a nucleic acid encoding different polypeptide, wherein one polypeptide is an osmotin, one is a PR1 polypeptide, one is a β-1,3-glucanase, and one is a chitinase. 17. A method of producing a Brassica plant line resistant to Phoma lingam, said method comprising a) introducing at least one nucleic acid construct into cells of a Brassica species that is susceptible to Phoma lingam, wherein said nucleic acid construct comprises i) a regulatory element operably linked to a nucleic acid encoding an osmotin polypeptide; ii) a regulatory element operably linked to a nucleic acid encoding a chitinase polypeptide; iii) a regulatory element operably linked to a nucleic acid encoding a β-1,3-glucanase polypeptide: and iv) a regulatory element operably linked to a nucleic acid encoding a PR1 polypeptide; b) obtaining one or more progeny plants from said cells; c) identifying at least one of said progeny plants that is resistant to Phoma lingam; and d) producing said plant line from said at least one progeny plant by self-or cross-pollination, wherein said plant line is resistant to Phoma lingam. 18. The method of claim 17, wherein said Brassica species is B. napus. 19. The method of claim 17, wherein said Brassica species is B. rape. 20. The method of claim 17, wherein said Brassica species is B. juncea. 21. The method of claim 17, wherein said Brassica species is B. nigra, B. cariata, or B. oleracea. 22. A method of producing a plant line resistant to S. sclerotiorum, said method comprising a) introducing at least one nucleic acid construct into cells of a plant species that is susceptible to S. sclerotiorum, wherein said nucleic acid construct comprises i) a regulatory element operably linked to a nucleic acid encoding a chitinase polypeptide; ii) a regulatory element operably linked to a nucleic acid encoding a β-1, 3-glucanase polypepride; iii) a regulatory element operably linked to a nucleic acid encoding an osmotin polypeptide; and iv) a regulatory element operably linked to a nucleic acid encoding a PR1 polypeptide; b) obtaining one or more progeny plants from said cells; c) identing at least one of said progeny plants that is resistant to S. sclerotiorum; and d) producing said plant line from said at least one progeny plant by self-or cross-pollination, wherein said plant line is resistant to S. sclerotiorum. 23. The method of claim 22, wherein said plant species that is susceptible to S. sclerotiorum is a Cruciferae plant. 24. The method of claim 23, wherein said Cruciferae plant is a Brassica plant. 25. The method of claim 22, wherein said plant species that is susceptible to S. sclerotiorum is soybean. 26. The method of claim 22, wherein said plant species that is susceptible to S. sclerotiorum is Helianthus annuus. 27. The method of claim 22, wherein said plant species that is susceptible to S. sclerotiorum is tomato.
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