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Dangerous Liaisons

Dangerous Liaisons?: When Cultivated Plants Mate with their Wild Relatives
Norman Carl Ellstrand
Baltimore : Johns Hopkins University Press, 2003
SB123.57 .E44 2003

With the advent of genetic engineering, "designer" crops might interbreed with natural populations. Could such romances lead to the evolution of "superweeds," as some have suggested? Haven't crops reproduced with wild plants in the past? Has such gene swapping occurred without consequences? And if consequences have indeed occurred, what lessons can be gleaned for engineered crops?

In Dangerous Liaisons? geneticist Norman C. Ellstrand examines these and other questions. He begins with basic information about the natural hybridization process. He then describes what we now know about hybridization between the world's most important crops - such as wheat, rice, maize, and soybeans - and their wild relatives. Such hybridization, Ellstrand explains, is not rare, and it has occasionally produced a substantial impact. In some cases, the result was problematic weeds. In others, crop genes have diluted natural diversity to the point that wild populations of certain rare species were absorbed into the gene pool of the more common crop bringing the wild species to the brink of extinction.

Ellstrand concludes with a look to the future. Will engineered crops pose a greater threat than traditional crops? If so, can gene flow and hybridization be managed to control the escape of engineered genes? This book will appeal to academics, policy makers, students, and all with an interest in environmental issues.

Quoted from dustjacket.