Crop-to-wild gene flow, introgression and possible fitness effects of transgenes.
Crop-to-wild gene flow, introgression and possible fitness effects of transgenes.
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DOI：
10.1051/ebr:2003001
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发表时间：
2003-01-01
期刊：
影响因子：
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通讯作者：
Chevre, Anne-Marie
中科院分区：
文献类型：
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作者：
Jenczewski, Eric;Ronfort, Joelle;Chevre, Anne-Marie
在过去的十年里，与转基因作物的开发和栽培有关的作物到野生基因的流动受到密切关注。在本文中，我们回顾了作物/野生同域和重叠开花物候，花粉和种子传播，杂交和渐渗的障碍，种间杂种的进化和命运，他们的健身，和潜在的成本转基因的关键例子。我们特别关注作物及其野生亲缘植物之间的进化和分歧可能会干扰这些连续步骤的方式。我们的评论表明，作物到杂草的基因流是高度特异性的，作物基因扩散肯定是很难完全排除。因此，未来的研究方向应侧重于转基因对自然群落的长期建立和影响。
Crop-to-wild gene flow has received close attention over the past ten years in connection with the development and cultivation of transgenic crops. In this paper, we review key examples of crop/wild sympatry and overlapping flowering phenology, pollen and seed dispersal, the barriers to hybridisation and introgression, the evolution and fate of interspecific hybrids, their fitness, and the potential cost of transgenes. We pay particular attention to ways in which the evolution and divergence between crops and their wild relatives may interfere with these successive steps. Our review suggests that crop-to-weed gene flow is highly idiosyncratic and that crop gene dispersion will certainly be very difficult to preclude totally. Future directions for research should thus focus on the long-term establishment and effects of transgenes on natural communities.