The impact of hybrids between genetically modified crop plants and their related species: introgression and weediness
作者:
H. DARMENCY,
期刊:
Molecular Ecology
(WILEY Available online 1994)
卷期:
Volume 3,
issue 1
页码: 37-40
ISSN:0962-1083
年代: 1994
DOI:10.1111/j.1365-294X.1994.tb00040.x
出版商: Blackwell Publishing Ltd
关键词: hybridization;introgression;risk assessment;transgenic crops;weeds
数据来源: WILEY
摘要:
AbstractAssessing the impact of hybrids between transgenic plants and nontarget wild species involves answering several questions such as: (i) what are the hybridization and introgression rates; (ii) what is the behaviour of a transgene in a wild population; and (iii) what will be the consequences of the expression of a transgene in a wild population? These issues are discussed using results from experiments on oilseed rape and wild related Brassiceae. Evidence is given of large variations in the estimates of cross‐fertilization probabilities. The first stage of introgression into wild populations is demonstrated to occur spontaneously through back‐crossing. Population analysis may also be valuable to detect traces of past introgression. Data from the literature on weed biology, and especially herbicide resistance, are used to illustrate the behaviour of a new gene in weed populations. The need for computer models simulating the introgression process is stres
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