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Expression of Foreign Genes in Transgenic Yellow-Poplar Plants

Genetic improvement of yellow-poplar (Liriodendron tulipifera) by traditional breeding strategies has been a slow process because, like all forest trees, it has a long generation time. Genetic engineering by recombinant DNA technology has the potential to accelerate the introduction of new traits into forest trees. Certain considerations, however, should be taken into account when designing strategies to produce transgenic trees: (1) few tree species currently can be regenerated from protoplasts, (2) chimeras cannot be easily eliminated, as with herbaceous plants, by sexual transmission of the transformed genotype, and (3) large-scale production of transgenic trees will be accomplished most efficiently by somatic embryogenesis.

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Author(s): H. Dayton Wilde, Richard B. Meagher, Scott A. Merkle

Publication: Tree Improvement and Genetics - Southern Forest Tree Improvement Conference - 1991

Section: Poster Abstracts