Transformation of maize using microprojectile bombardment: An update and perspective |
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Authors: | W. J. Gordon-Kamm T. M. Spencer J. V. O’Brien W. G. Start R. J. Daines T. R. Adams M. L. Mangano S. A. Chambers S. J. Zachwieja N. G. Willetts W. R. Adams Jr. C. J. Mackey R. W. Krueger A. P. Kausch P. G. Lemaux |
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Affiliation: | (1) Discovery Research, DEKALB Plant Genetics, Eastern Point Road, 06340 Groton, Connecticut |
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Abstract: | Summary Using microprojectile bombardment of maize suspension cultures and bialaphos selection, transformed embryogenic calli have been recovered in numerous independent experiments. Fertile transgenic plants have been regenerated from several transformed callus lines. Stable inheritance and expression ofbar and functional activity of the enzyme phosphinothricin acetyl transferase were observed in three subsequent generations of transformed plants. Evidence to date indicates that the transformation process and the presence of the foreign gene per se do not detrimentally influence either plant vigor or fertility. This represents a practical method for introducing foreign genes into maize, which may be applicable to other monocot species. Presented in the Session-in-Depth Genetic Transformation and Genetic Analysis Using Microprojectile Bombardment at the Annual Meeting of the Tissue Culture Association, Houston, Texas, June 10–13, 1990. |
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Keywords: | microprojectile bombardment bialaphos bar maize transformation |
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