Methods and materials for modulating (e.g., increasing or decreasing) oil levels in plants are disclosed. For example, nucleic acids encoding oil-modulating polypeptides are disclosed as well as methods for using such nucleic acids to transform plant cells. Also disclosed are plants having increased
Methods and materials for modulating (e.g., increasing or decreasing) oil levels in plants are disclosed. For example, nucleic acids encoding oil-modulating polypeptides are disclosed as well as methods for using such nucleic acids to transform plant cells. Also disclosed are plants having increased oil levels and plant products produced from plants having increased oil levels.
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1. A method of modulating the level of oil in a plant, said method comprising introducing into a plant cell an isolated nucleic acid comprising a nucleotide sequence encoding a polypeptide having 80 percent or greater sequence identity to the amino acid sequence set forth in SEQ ID NO: 136, said pol
1. A method of modulating the level of oil in a plant, said method comprising introducing into a plant cell an isolated nucleic acid comprising a nucleotide sequence encoding a polypeptide having 80 percent or greater sequence identity to the amino acid sequence set forth in SEQ ID NO: 136, said polypeptide having tryptophan/tyrosine permease activity, wherein a tissue of a plant produced from said plant cell has a difference in the level of oil as compared to the corresponding level in tissue of a control plant that does not comprise said nucleic acid. 2. The method of claim 1, wherein said sequence identity is 85 percent or greater. 3. The method of claim 2, wherein said sequence identity is 90 percent or greater. 4. The method of claim 2, wherein said sequence identity is 95 percent or greater. 5. The method of claim 1, wherein said nucleotide sequence encodes a polypeptide comprising the amino acid sequence set forth in SEQ ID NO:136. 6. The method of claim 1, wherein said difference is an increase in the level of oil. 7. The method of claim 1, wherein said isolated nucleic acid is operably linked to a regulatory region. 8. The method of claim 7, wherein said regulatory region is a tissue-preferential regulatory region. 9. The method of claim 8, wherein said tissue-preferential regulatory region is a promoter. 10. The method of claim 7, wherein said regulatory region is a broadly expressing promoter. 11. The method of claim 1, wherein said plant is a dicot. 12. The method of claim 11, wherein said plant is a member of the genus Anacardium, Arachis, Azadirachta, Brassica, Cannabis, Carthamus, Corylus, Crambe, Cucurbita, Glycine, Gossypium, Helianthus, Jatropha, Juglans, Linum, Olea, Papaver, Persea, Prunus, Ricinus, Sesamum, Simmondsia, or Vitis. 13. The method of claim 1, wherein said plant is a monocot. 14. The method of claim 13, wherein said plant is a member of the genus Cocos, Elaeis, Oryza, or Zea. 15. The method of claim 1, wherein said tissue is seed tissue. 16. A method of producing a plant tissue, said method comprising growing a plant cell comprising an exogenous nucleic acid comprising a nucleotide sequence encoding a polypeptide having 80 percent or greater sequence identity to the amino acid sequence set forth in SEQ ID NO: 136, said polypeptide having tryptophan/tyrosine permease activity, wherein said tissue has a difference in the level of oil as compared to the corresponding level in tissue of a control plant that does not comprise said nucleic acid. 17. The method of claim 16, wherein said sequence identity is 85 percent or greater. 18. The method of claim 17, wherein said sequence identity is 90 percent or greater. 19. The method of claim 17, wherein said sequence identity is 95 percent or greater. 20. The method of claim 16, wherein said nucleotide sequence encodes a polypeptide comprising the amino acid sequence set forth in SEQ ID NO:136. 21. The method of claim 16, wherein said difference is an increase in the level of oil. 22. The method of claim 16, wherein said exogenous nucleic acid is operably linked to a regulatory region. 23. The method of claim 22, wherein said regulatory region is a tissue-preferential regulatory region. 24. The method of claim 23, wherein said tissue-preferential regulatory region is a promoter. 25. The method of claim 22, wherein said regulatory region is a broadly expressing promoter. 26. The method of claim 16, wherein said plant tissue is dicotyledonous. 27. The method of claim 26, wherein said plant tissue is a member of the genus Anacardium, Arachis, Azadirachta, Brassica, Cannabis, Carthamus, Corylus, Crambe, Cucurbita, Glycine, Gossypium, Helianthus, Jatropha, Juglans, Linum, Olea, Papaver, Persea, Prunus, Ricinus, Sesamum, Simmondsia, or Vitis. 28. The method of claim 16, wherein said plant tissue is monocotyledonous. 29. The method of claim 28, wherein said plant tissue is a member of the genus Cocos, Elaeis, Oryza, or Zea. 30. The method of claim 16, wherein said tissue is seed tissue. 31. A plant cell comprising an exogenous nucleic acid comprising a nucleotide sequence encoding a polypeptide having 80 percent or greater sequence identity to the amino acid sequence set forth in SEQ ID NO:136, said polypeptide having tryptophan/tyrosine permease activity, wherein a tissue of a plant produced from said plant cell has a difference in the level of oil as compared to the corresponding level in tissue of a control plant that does not comprise said nucleic acid. 32. The plant cell of claim 31, wherein said sequence identity is 85 percent or greater. 33. The plant cell of claim 32, wherein said sequence identity is 90 percent or greater. 34. The plant cell of claim 32, wherein said sequence identity is 95 percent or greater. 35. The plant cell of claim 31, wherein said nucleotide sequence encodes a polypeptide comprising the amino acid sequence set forth in SEQ ID NO:136. 36. The plant cell of claim 31, wherein said difference is an increase in the level of oil. 37. The plant cell of claim 31, wherein said exogenous nucleic acid is operably linked to a regulatory region. 38. The plant cell of claim 37, wherein said regulatory region is a tissue-preferential regulatory region. 39. The plant cell of claim 38, wherein said tissue-preferential regulatory region is a promoter. 40. The plant cell of claim 37, wherein said regulatory region is a broadly expressing promoter. 41. The plant cell of claim 31, wherein said plant is a dicot. 42. The plant cell of claim 41, wherein said plant is a member of the genus Anacardium, Arachis, Azadirachta, Brassica, Cannabis, Carthamus, Corylus, Crambe, Cucurbita, Glycine, Gossypium, Helianthus, Jatropha, Juglans, Linum, Olea, Papaver, Persea, Prunus, Ricinus, Sesamum, Simmondsia, or Vitis. 43. The plant cell of claim 31, wherein said plant is a monocot. 44. The plant cell of claim 43, wherein said plant is a member of the genus Cocos, Elaeis, Oryza, or Zea. 45. The plant cell of claim 31, wherein said tissue is seed tissue. 46. A transgenic plant comprising the plant cell of claim 31. 47. Progeny of the plant of claim 46, wherein said progeny has a difference in the level of oil as compared to the level of oil in a corresponding control plant that does not comprise said exogenous nucleic acid. 48. Seed from a transgenic plant according to claim 46. 49. Vegetative tissue from a transgenic plant according to claim 46. 50. A food product comprising seed or vegetative tissue from a transgenic plant according to claim 46. 51. A feed product comprising seed or vegetative tissue from a transgenic plant according to claim 46. 52. A method of making oil, said method comprising extracting oil from the seed of claim 48. 53. A method of modulating the level of oil in a plant, said method comprising: a) introducing into a plant cell an isolated nucleic acid comprising a nucleotide sequence encoding a polypeptide having 80 percent or greater sequence identity to the amino acid sequence set forth in SEQ ID NO: 136 to generate stably transformed plant cells, said polypeptide having tryptophan/tyrosine permease activity; andb) selecting at least one plant from a population of plants derived from said transformed plant cells that has a difference in the level of oil in a tissue of said selected plant as compared to the corresponding level of oil in tissue of a control plant that does not comprise said nucleic acid. 54. The method of claim 53, wherein said difference is an increase in the level of oil. 55. The method of claim 53, wherein said polypeptide has the amino acid sequence set forth in SEQ ID NO:136.
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