Gene flow from genetically modified herbicide-resistant rapeseed to cruciferous weeds

文献类型： 外文期刊

第一作者： Zhao Xiangxiang

作者： Zhao Xiangxiang;Xia Qiuxia;Lu Dalei;Lu Weiping;Qi Cunkou;Pu Huiming;Liu Geshan;Zhao Jian;Wang Youping

作者机构：

关键词： herbicide-resistant rapeseed;cruciferous weeds;aniline blue fluorescence;interspecific hybridization;sexual compatibility;gene flow

期刊名称：PROGRESS IN NATURAL SCIENCE （ 影响因子：0.704； 五年影响因子：0.688 ）

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收录情况： SCI

摘要： The sexual compatibility between genetically modified (GM) glyphosate-resistant rapeseed variety Q3 (Brassica napus L. ) and 5 cruciferous weeds is studied through the observation of fluorescence microscopy and cross-fertility after manual pollination. The results indicated that Q3 (as male) was highly incompatible with Thlaspi arvense L., Capsella bursa-pastoris (L.) Medic, Cardamine hirsuta L. and Rorippa palustris (L.) Besser (as female). Fluorescence microscopic observation showed that growing of pollen tubes terminated on the stigma surface or at the upper 1/3 part of the style. However, B. juncea X Q3 was compatible, and the compatibility index was 1.65. Under the neighboring growth and natural pollination conditions, the rates of gene flow from Q3 to T. arvense, C. bursa-pastoris, C. hirsute and R . palustris were all 0, while it was 0. 86 % for B . juncea . These results indicate that there is difference in the rate of gene flow between GM rapeseed and cruciferous wild weeds, and frequency of gene flow is highly correlated with sexual compatibility.

分类号： N1

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