Genetic engineering to improve quality, productivity and value of crops
AuthorsAbhaya M. Dandekar
Hilgardia 54(4):49-56. DOI:10.3733/ca.v054n04p49. July 2000.
Over the next 25 years, we believe that the most significant changes in crops will come about by applying genetic engineering tools. Crops may be bioengineered to produce modified kinds of starch, oils and high-value proteins for better nutrition, medical diagnostics and industrial uses. For example, walnuts and peanuts containing healthier oils, along with oxidative stability, could become available to consumers. Seedless vegetables and other fruits should appear in the marketplace within 10 years. Oil-producing seed crops may be modified to create specialty oils for a variety of nonfood products such as detergents, lubricants, inks and dyes. Feed seeds engineered to produce higher concentrations of sulfur-containing amino acids could improve wool growth in sheep. Plants could be modified to deliver oral vaccines that prevent diseases such as hepatitis and influenza. Strawberries are being targeted by genetic engineering to extend their shelf life, and within 25 years fields may be planted with varieties that allow farmers to control the timing of fruit production. Although currently controversial, we believe genetic engineering will prove to be invaluable to the future improvement of agricultural systems. To enhance the competitiveness of California agriculture, government, university scientists and industry must work together to ensure the application of genetic engineering tools to improve crops.
Chrispeels MJ, Sadava DE. Human population growth: Lessons from demography. In: Plants, Genes, and Agriculture.. 1994. Boston, MA: Jones and Bartlett. 13. 24.
Ficcadenti N, Sesili S, Pandolfini T, et al. Genetic engineering of parthenocarpic fruit development in tomato. Molec Breeding. 1999. 5:463-70. https://doi.org/10.1023/A:1009665409959
Forkmann G. Flavonoids as flower pigments: The formation of the natural spectrum and its extension by genetic engineering. Plant Breeding. 1991. 106:1-26. https://doi.org/10.1111/j.1439-0523.1991.tb00474.x
Kao T-H, McCubbin G. How floweting plants discriminate between self and nonself pollen to prevent inbreeding. Proceeding of the National Academy of Sciences USA. 1996. 93:12059-65. https://doi.org/10.1073/pnas.93.22.12059
Kapusta J, Modelska A, Figlerowicz M, et al. A plant derived edible vaccine against hepatitis B virus. FASEB J. 1999. 13:1796-9. PubMed PMID: 10506582
Koltunow AM, Brennan P, Bond JE, Barker SJ. Evaluation of genes to reduce seed size in Arabidopsis and tobacco and their application to citrus. Molec Breeding. 1998. 4:235-51. https://doi.org/10.1023/A:1009610819338
Koomneef M, Alonso-Blanco C, Peeters AJM, Soppe W. Genetic control of flowering time in Arabidopsis. Annual Rev. Plant Physiol and Plant Molec Biol. 1998. 49:345-70. https://doi.org/10.1146/annurev.arplant.49.1.345
Maliyakal JE, Greg K. Metabolic pathway engineering in cotton: Biosynthesis of polyhydroxybutyrate in fiber cells. Proceedings of the National Academy of Sciences USA. 1996. 93:12768-73. https://doi.org/10.1073/pnas.93.23.12768
McCormick AA, Kumagai MH, Hanley K, et al. Rapid production of specific vaccines for lymphoma by expression of the tumor-derived single chain Fv epitopes in tobacco plants. Proceedings of the National Academy of Sciences USA. 1999. 96:703-8. https://doi.org/10.1073/pnas.96.2.703
Meyer P, Heidmann I, Forkmann G, Saedler H. A new petunia flower colour generated by transformation of a mutant with a maize gene. Nature. 1987. 330:677-8. https://doi.org/10.1038/330677a0 PubMed PMID: 3683587
Napoli C, Lemieux C, Jorgensen R. Introduction of a chimeric chalcone synthase gene into petunia results in reversible co-suppression of homologous genes in trans. The Plant Cell. 1990. 2:279-89. https://doi.org/10.2307/3869076
Ori N, Juarez MT, Jackson D, et al. I eaf senescence is delayed in tobacco plants expressing the maize homeobox gene knotted 1 under the control of a senescence-activated promoter. The Piant Cell. 1999. 11:1073-80.
Pnueli L, Carmel-Goren L, Hareven D, et al. The self-pruning gene of tomato regulates vegetative to reproductive switching of sympodial meristems and is the orthology of CEN and TFL1. Development. 1998. 125:1979-89. PubMed PMID: 9570763
Rainer F, Juergen D, Ulrich C, et al. Towards molecular farming in the future: Moving from diagnostic protein and antibody production in microbes to plants. Biotech Appl Biochem. 1999. 30:101-8.
Rotino GL, Perri E, Zottini M, et al. Genetic engineering of parthenocarpic plants. Nat Biotech. 1997. 151:398-401.
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