Fitness of hybrids between rapeseed (Brassica napus) and wild Brassica rapa in natural habitats
Allainguillaume, J.; Alexander, M.; Bullock, J. M.; Saunders, M.; Allender, C. J.; King, G.; Ford, C. S.; Wilkinson, M. J.. 2006 Fitness of hybrids between rapeseed (Brassica napus) and wild Brassica rapa in natural habitats. Molecular Ecology, 15. 1175-1184. 10.1111/j.1365-294X.2006.02856.x
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Official URL: http://www.blackwell-synergy.com/doi/abs/10.1111/j...
Abstract/Summary
Fitness of hybrids between genetically modified (GM) crops and wild relatives influences the likelihood of ecological harm. We measured fitness components in spontaneous (non-GM) rapeseed × Brassica rapa hybrids in natural populations. The F1 hybrids yielded 46.9% seed output of B. rapa, were 16.9% as effective as males on B. rapa and exhibited increased self-pollination. Assuming 100% GM rapeseed cultivation, we conservatively predict < 7000 second-generation transgenic hybrids annually in the United Kingdom (i.e. 20% of F1 hybrids). Conversely, whilst reduced hybrid fitness improves feasibility of bio-containment, stage projection matrices suggests broad scope for some transgenes to offset this effect by enhancing fitness
| Item Type: | Article |
|---|---|
| Identification Number/DOI: | 10.1111/j.1365-294X.2006.02856.x |
| Programmes: | CEH Programmes up to 2009 > Biodiversity |
| Groups/Sections (CEH only): | _ Population & Conservation Ecology |
| Format Availability: | Electronic, Print |
| Additional Keywords: | Brassica napus, Brassica rapa, fitness, gene flow, genetically modified crops, wild relatives |
| NORA Subject Terms: | Botany Ecology and Environment |
| ID Code: | 239 |
| Deposited On: | 03 Jul 2007 14:21 |
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