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Modelling the outcrossing between genetically modified and conventional maize with equation discovery

Aneta Ivanovska, Ljupčo Todorovski, Marko Debeljak and Sašo Džeroski

Ecological Modelling, 2009, vol. 220, issue 8, 1063-1072

Abstract: Many studies explore the feasibility of co-existence between genetically modified (GM) and conventional (non-GM) crops. An important research topic in these studies is the process of outcrossing, i.e., the process of gene flow via pollen flow from GM to non-GM crops. In this paper, we address a new modelling approach to define the environmentally driven processes of outcrossing for maize from existing empirical datasets. In particular, we use equation discovery methodology that combines background knowledge and empirical data from several studies. We induce models that predict the degree of outcrossing rate between the donor (GM) and the recipient (non-GM) maize field from the distance between the fields and the local wind characteristics (speed, direction and duration). This results in highly accurate models, for which both variables (distance and wind) are essential and of roughly equal importance.

Keywords: Genetically modified crops; Outcrossing; Equation discovery; Background knowledge (search for similar items in EconPapers)
Date: 2009
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecomod:v:220:y:2009:i:8:p:1063-1072

DOI: 10.1016/j.ecolmodel.2009.01.035

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