Moyes C L, Lilley J M, Casais C A, Cole S G, Haeger P D, Dale P J
John Innes Centre, Colney Lane, Norwich, NR4 7UH, UK.
Mol Ecol. 2002 Jan;11(1):103-12. doi: 10.1046/j.0962-1083.2001.01416.x.
One concern over growing herbicide-tolerant crops is that herbicide-tolerance genes may be transferred into the weeds they are designed to control. Brassica napus (oilseed rape) has a number of wild relatives that cause weed problems and the most widespread of these is Sinapis arvensis (charlock). Sinapis arvensis seed was collected from 102 populations across the UK, within and outside B. napus-growing areas. These populations were tested for sexual compatibility with B. napus and it was found that none of them hybridized readily in the glasshouse. In contrast to previous studies, we have found that hybrids can be formed naturally with S. arvensis as the maternal parent. Six diverse B. napus cultivars (Capricorn, Drakkar, Falcon, Galaxy, Hobson and Regent) were tested for their compatibility with S. arvensis but no cultivar hybridized readily in the glasshouse. We were unable to detect gene transfer from B. napus to S. arvensis in the field, confirming the extremely low probability of hybridization predicted from the glasshouse work.
对耐除草剂作物不断增加的一个担忧是，耐除草剂基因可能会转移到它们旨在控制的杂草中。甘蓝型油菜有许多会引发杂草问题的野生近缘种，其中分布最广的是野芥。从英国甘蓝型油菜种植区内外的102个种群中收集了野芥种子。对这些种群与甘蓝型油菜的性亲和性进行了测试，结果发现它们在温室中均不易杂交。与之前的研究不同，我们发现可以以野芥为母本自然形成杂种。测试了六个不同的甘蓝型油菜品种（摩羯座、德拉卡、猎鹰、银河、霍布森和摄政王）与野芥的亲和性，但没有一个品种在温室中容易杂交。我们在田间未能检测到从甘蓝型油菜到野芥的基因转移，这证实了温室实验预测的杂交概率极低。
