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以转基因抗除草剂油菜 Q3和 HCN- 19为花粉供体材料 ,油菜近缘作物为花粉受体材料 ,在自然授粉条件下研究甘蓝型油菜与芸薹属近缘作物间的基因漂移频率。结果表明 ,油菜对芸薹属 6个种甘蓝、黑芥、埃芥、芥菜型油菜、白菜型油菜和甘蓝型油菜的基因漂移率分别为 0、0 .0 2 4 %～ 0 .2 4 3%、 0 .0 2 8%～ 0 .0 92 %、 0 .10 9%～ 0 .95 1%、 0 .4 79%～ 0 .879%、 1.2 5 2 %～2 .191%。且基因漂移频率受多种因素影响 ,其中与杂交亲和性、花期同步率、种植面积等高度相关。通过花粉将抗除草剂基因漂移给近缘作物 ,油菜是需要特别关注的作物
Transgenic herbicide resistant rapeseed Q3 and HCN-19 were used as pollen donor materials. Rapeseed (RVA) -related crops were pollen receptor materials. The frequency of genetic drift between rapeseed and Brassica crops was studied under natural pollination conditions. The results showed that the genetic drift rates of Brassica oleracea to six Brassica oleracea, Brassica, Mustard, Mustard, Brassica juncea, Brassica campestris and Brassica napus were 0,0. 024% -0.224 %, 0.022% ~0.092%, 0.109% ~0.95%, 0.499% ~ 0.889%, 1.2% ~ 5.219%. And the frequency of gene drift is affected by many factors, which are highly correlated with the hybridization compatibility, flowering synchronization rate, planting area and so on. Rapeseed is a crop that needs special attention because of the resistance of herbicide-tolerant genes to the related crops through pollen