chapter  14
16 Pages

Molecular Approaches for Transgene Containment and Their Potential Applications in Horticultural Crops

Horticultural crops were the ‰rst commercialized transgenic plants in the United States. From 1994 to 1995, Flavr Savr tomato, Endless Summer tomato, and virus-resistant squash were marketed.1,2 A tomato paste (puree) produced from a transgenic processing tomato was the best-selling paste in 1999 and 2000 in the United Kingdom. Despite these early commercial successes, the number of transgenic horticultural crops currently marketed in the United States is very small, limited to papayas, sweetcorn, squash, and carnations.1,2 Also, the economic impact of transgenic horticultural crops is minimal. Except papaya, transgenic horticultural crops have had very small market shares.3,4 The well-known estimate that 70% of food products in U.S. supermarkets contain transgenic crop ingredients is due to the widespread use of transgenic corn, canola, and soybean products in virtually all processed foods.1