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首页> 外文期刊>Crop and Pasture Science >Risks of gene flow from transgenic herbicide-resistant canola (Brassica napus) to weedy relatives in southern Australian cropping systems
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Risks of gene flow from transgenic herbicide-resistant canola (Brassica napus) to weedy relatives in southern Australian cropping systems

机译：在澳大利亚南部种植系统中，从抗除草剂的低芥酸菜籽（甘蓝型油菜）到杂草近缘的基因流的风险

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摘要

It is likely that transgenic canola expressing genes encoding resistance to glyphosate and glufosinate ammonium will be introduced into the Australian cropping system in the next few years. One risk associated with the introduction of such cultivars is the release of herbicide resistance genes into weedy relatives of canola. This review examines the currently available experimental information regarding the possibility of gene flow from canola to weedy relatives. Three species are identified as having the potential to outcross with canola, Brassica juncea, B. rapa, and Raphanus raphanistrum. Two of these species are not yet widespread weeds of the southern Australian cropping zone. In contrast, R. raphanistrum is already a major weed in Australia with existing resistance to ALS-inhibiting herbicides. Information is urgently needed to determine whether successful hybrids between B. napus and R. raphanistrum can be produced under Australian conditions. Major deficiencies in the existing information are identified in relation to some other important weed species within the southern Australian cropping zone. Further studies are required to determine the out-crossing potential of canola to B. tournefortii, Diplotaxis tenuifolia, Sisymbrium officinale, and S. orientale if transgenic canola is to be safely and responsibly introduced into Australia.
机译：表达编码草甘膦和草铵膦铵盐抗性的基因的转基因双低油菜籽可能会在未来几年引入澳大利亚种植系统。与这种栽培种的引入有关的一种风险是将除草剂抗性基因释放到低芥酸菜子的杂草近缘种中。这篇评论检查了有关从油菜向杂草近缘基因流动的可能性的当前可用实验信息。鉴定出三个物种有可能与双低油菜籽，芥菜，B。rapa和Raphanus raphanistrum杂交。这些物种中的两个尚未成为澳大利亚南部种植区的杂草。相反，R。raphanistrum已经是澳大利亚的主要杂草，对ALS抑制性除草剂已有抗性。迫切需要信息来确定在澳大利亚的条件下是否可以成功生产甘蓝型油菜和油菜R. raphanistrum之间的成功杂交。在澳大利亚南部种植区内，与其他一些重要杂草物种相关的现有信息存在重大缺陷。如果要将转基因双低油菜籽安全地引入澳大利亚，需要进一步的研究以确定双低油菜籽对双歧双歧杆菌，Diplotaxis tenuifolia，厚皮西番莲和东方沙门氏菌的交叉潜力。

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  • 来源
    《Crop and Pasture Science》 |1999年第2期|p.115-128|共14页
  • 作者

    Mary A. RiegerAC Chris PrestonA and Stephen B. PowlesB;

  • 作者单位

    ACooperative Research Centre for Weed Management Systems, Department of Crop Protection,The University of Adelaide Waite Campus, Glen Osmond, SA 5064, Australia.B Plant Science Group, University of Western Australia, Nedlands, WA 6907, Australia.C Corresponding author.;

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