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Please use this identifier to cite or link to this item: http://hdl.handle.net/11019/566

Title: Assessing the Impact of Pollen-mediated Gene Flow from GM Herbicide Tolerant Brassica Napus into Common Wild Relatives in Ireland
Authors: Collier, Marcus J.
Mullins, Ewen
Keywords: GM crops
Environmental impact
Brassica napus (oilseed rape)
DNA transfer
Pollen-mediated gene flow
Biodiversity
Issue Date: 30-Apr-2012
Publisher: Royal Irish Academy
Citation: Marcus J. Collier and Ewen Mullins. (2012). Assessing the impact of pollen-mediated gene flow from GM herbicide tolerant Brassica Napus into common wild relatives in Ireland. Biology and Environment: Proceedings of the Royal Irish Academy, 112B, 257-266. DOI:
Series/Report no.: Biology and Environment: Proceedings of the Royal Irish Academy;vol 112B
Abstract: Although now we have had many years of research completed on assessing the potential environmental impact of GM crops, concern remains over their potential impact on biodiversity in the rural landscape. In particular, issues have arisen in regards to the modification of crops with traits that could introgress into sexually compatible wild relatives. In contrast to wheat, barley, potato and maize, Brassica napus (oilseed rape) is the only commercial crop grown in Ireland at present with the potential to successfully transfer its DNA, via pollen-mediated gene flow, into inter-related weed species. This review details the species in question and by examining the relevant literature that relates to Irish agronomic conditions, demonstrates that gene flow is likely to occur, especially to an earlier used cultivar, Brassica rapa. However, the critical factor remains not that GM traits will flow from the commercial source but what might the consequences of said gene flow events be. This review indicates that the conferred trait in question (in this case, herbicide tolerance) can only impact on weed diversity in the presence of selecting herbicide action. In the absence of the herbicide, the GM traits will be lost from the wild species over time and will not confer any selective advantage that could facilitate population growth.
Description: peer-reviewed
This research was funded by the Irish Environmental Protection Agency (ERTDI 2006-B-MS-46 and 2007-B-DS-1-S1) and Teagasc, the Irish Agriculture and Food Development Authority.
URI: http://hdl.handle.net/11019/566
http://dx.doi.org/10.3318/BIOE.2012.12
ISSN: 0791-7945
Appears in Collections:Crop Science

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