Coexistence and ecological biosafety of two GM crops in Europe

The three-year, EU-funded project SIGMEA combined skills from many disciplines to examine the biological, environmental, agronomic, economic and legal issues that determine whether GM and non-GM crops can feasibly be grown in the same agricultural landscape. Its conclusions differed for the two crops that have been most widely studied.

Map of field patterning in a study of cross pollination - provided by Enric Mele, SpainSIGMEA reported mainly on coexistence, but also on ecological biosafety. Coexistence refers to the need to separate, in the food production chain, different types of crop, such as those that have been developed with or without genetic modification. While zero impurity of one type of crop in another is impossible to guarantee, the EU had set a threshold of 0.9% GM content for produce that can be labelled as GM-free.

Co-existence with GM crops in European Agriculture

SIGMEA logoThe EU project SIGMEA is examining the feasibility of growing GM and other crops together in the agricultural landscapes of Europe. A central part of the project - Workpackage 2 or WP2 - collates and analyses experimental studies on geneflow by seed and pollen, but also considers field experiments on the ecological impacts of GM cropping. WP2 has over 20 partners who are sharing and analysing definitive data on over 100 field experiments, making the SIGMEA database the most comprehensive of its type. The agroecology group at SCRI co-ordinates this unique synthesis of biology and agronomy. Contact: Geoff Squire

Syndicate content