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| 1 | Assessment on alien herbicide-resistant gene flow among crucifers by sexual compatibility显示文摘Cross-pollination and high cross-compatibility are frequently found in many cruciferous plants, which im-plies that there might be potential risk of alien gene flow among crucifers. In this work, the alien glyphosate-resistant gene flow between GM (Genetically modified) rapeseed vari-ety Q3 (Brassica napus) and 6 varieties from 5 cruciferous species was assessed by sexual compatibility through aniline blue fluorescence observation, manual cross, mentor pollina-tion with the mixture pollen and DNA identification. The results indicated that the compatibility indices of two B. napus varieties, B. juncea var. multiceps Tsen et Lee and Chinese cabbage (B. chinensis) (as female) with Q3 (as male) were 16.15, 12.77, 2.345 and 0.85, respectively. F1 plants were examined by PCR and all of these samples were confirmed as positive. Crossing between Orychophragmus violaceus, Des-curainia sophia (as female) and Q3 (as male) expressed high cross-incompatibility. Fluorescence microscope observation indicated that growing of pollen tube terminated at the upper 1/3 part of the style of O. violaceus and on the stigma surface of D. sophia. The mentor plants were further analyzed by PCR and all were shown to be negative. Under the neighboring growth and natural pollination conditions, the rates of gene flow to two B. napus varieties were 2.3278% and 2.1487%, respectively, B. juncea var. multiceps Tsen et Lee and Chinese cabbage were 1.0157% and 0.9236%, re-spectively. No gene flow was observed in O. violaceus and D. sophia. Frequency of gene flow was highly correlated with sexual compatibility. Due to possible alien gene flow among crucifers, special consideration and care should be taken to grow GM rapeseed. | ZHAO Xiangxiang LU Weiping QI Cunkou PU Huiming XIA Qiuxia LU Dalei LIU Geshan WANG Youping | 2005 | Chinese Science Bulletin2005，50，15： | 6 |
| 2 | Development and molecular analysis of a novel acetohydroxyacid synthase rapeseed mutant with high resistance to sulfonylurea herbicides显示文摘With the increasing promotion of simplified rapeseed cultivation in recent years,the development of cultivars with high resistance to herbicides is urgently needed.We previously developed M342,which shows sulfonylurea herbicide resistance,by targeting acetohydroxyacid synthase(AHAS),a key enzyme in branched-chain amino acid synthesis.In the present study,we used a progeny line derived from M342 for an additional round of ethyl methane sulfonate mutagenesis,yielding the novel mutant DS3,which harbored two mutations in AHAS genes and showed high sulfonylurea resistance.One mutation was the substitution Trp574 Leu,as in M342,according to Arabidopsis protein sequencing.The other site was a newly recognized substitution,Pro197 Leu.A KASP marker targeting Pro197 Leu was developed and reliably predicted the response to sulfonylurea herbicides in the F2 population.The combination of Trp574 Leu and Pro197 Leu in DS3 produced a synergistic effect that greatly increased herbicide resistance.Analysis of the protein structures of AHAS1 and AHAS3 in wild-type and single-gene mutant plants revealed three-dimensional protein conformational changes that could account for differences in herbicide resistance characteristics including toxicity tolerance,AHAS enzyme activity,and AHAS gene expression. | Yue Guo Changle Liu Weihua Long Jianqin Gao Jiefu Zhang Song Chen Huiming Pu Maolong Hu | 2022 | The Crop Journal2022，10，1： | 3 |
| 3 | Gene flow from genetically modified herbicide-resistant rapeseed to cruciferous weeds显示文摘性相容性在之间遗传上修改了(美国通用汽车公司)glyphosate 抵抗的油菜籽变化 Q3 (Brassica 马来麝 L.) 和 5 棵饰有十字架的杂草通过荧光显微镜学的观察被学习并且在用手的授粉以后跨富饶。结果显示了那 Q3 (同样男性) 与 Thlaspi arvense L. 高度不兼容, Capsella bursa-pastoris (L.) 苜蓿, Cardamine hirsuta L。并且 Rorippa palustris (L.) Besser (作为女性) 。荧光显微镜的观察显示出那成长在耻辱表面上或在风格的上面的 1/3 部分终止的花粉试管。然而, B。juncea x Q3 是兼容的,并且相容性索引是 1.65。在附近的生长和自然授粉条件下面,基因的率从 Q3 流动到 T。arvense, C。bursa-pastoris, C。多毛并且 R。palustris 都是 0,当它为 B 是 0.86% 时。juncea。这些结果显示处于在美国通用汽车公司油菜籽之间的基因流动的率有差别,基因流动的饰有十字架的野杂草。 | ZHAO Xiangxiang XIA Oiuxia LU Dalei LU Weiping QI Cunkou PU Huiming LIU Geshan ZHAO Jian WANG Youping | 2006 | Progress in Natural Science:Materials International2006，16，9： | 3 |
| 4 | Profile and distribu- tion of soluble and insoluble phenolics in Chinese rapeseed (Brassica napus) 显示文摘 | LIU Qin WU Li PU Huiming | 2012 | Food Chem2012，135，： | 1 |
| 5 | Gene flow from transgenic oilseed rape (Brassica napus L.) to cruciferous weeds under mentor pollen inducement显示文摘The alien gene flow between genetically modified glyphosate-resistant rapeseed variety Q3 (Brassica napus L.) and four cruciferous weeds was studied under mentor pollen inducement. The results showed that when Thlaspi arvense L., Capsella bursa-pastoris (L.) Medic, Cardamine hirsuta L. and Rorippa palustris (L.) Besser were pollinated with mentor pollen, the mixed Q3 and the weed, pollen grains aggregated largely and germinated quickly, and the numbers of pollen tubes penetrating into the style and the ovary were greatly increased as compared with corresponding self-pollination groups. Twenty four to forty eight hours after pollination, several pollen tubes were observed to penetrate into the ovule via micropyle in each mentor combination. However, when the mentor progenies were analyzed by PCR, all of them showed negative for the Q3 herbicide-resistant gene. Collectively, these results indicated that crossing between T. arvense, C. bursa-pastoris, C. hirsuta, R. palustris (as female) and Q3 (as male) was highly incompatible and the herbicide-resistant gene could not flow from Q3 to these four weeds. | Zhao Xiangxiang Luo Yuming Lu Weiping Qi Cunkou Pu Huiming Wang Youping | 2007 | Progress in Natural Science:Materials International2007，17，11： | 0 |
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