And it has a long history; the genetics of many tree species have been purposefully modified for more than 5,000 years. In Genetically Modified Forests, the authors trace the history of tree improvement, helping the reader to understand both human effect on tree genetics and the real and imagined concerns of genetic engineering. Dr Rowland Burdon has been a researcher with Scion since 1964. William J. Libby was a professor at the University of California-Berkeley from 1961 until 1994.
