Establishment and optimization of a regionally applicable maize gene-flow model
文献类型: 外文期刊
作者: Hu, Ning 2 ; Hu, Jichao 2 ; Jiang, Xiaodong 2 ; Lu, Zongzhi 3 ; Peng, Yufa 4 ; Chen, Wanlong 2 ; Yao, Kemin 2 ; Zhang, Mi 1 ;
作者机构: 1.Nanjing Agr Univ, Coll Agr, Nanjing 210095, Jiangsu, Peoples R China
2.Nanjing Univ Informat Sci & Technol, Coll Appl Meteorol, Jiangsu Key Lab Agr Meteorol, Nanjing 210044, Jiangsu, Peoples R China
3.Jilin Acad Agr Sci, Inst Plant Protect, Gongzhuling 136100, Jilin, Peoples R China
4.Chinese Acad Agr Sci, Inst Plant Protect, Beijing 100193, Peoples R China
5.Jilin Acad Agr Sci, Biotechnol Res Ctr, Changchun 130124, Jilin, Peoples R China
关键词: Maize;Gene-flow model;Threshold value;Maximum threshold distance
期刊名称:TRANSGENIC RESEARCH ( 影响因子:2.788; 五年影响因子:2.377 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: Because of the rapid development of transgenic maize, the potential effect of transgene flow on seed purity has become a major concern in public and scientific communities. Setting a proper isolation distance in field experiments and seed production is a possible solution to meet seed-quality standards and ensure adventitious contamination of products is below a specific threshold. By using a Gaussian plume model as basis and data recorded by meteorological stations as input, we have established a simple regionally applicable maize gene-flow model for prediction of the maximum threshold distances (MTD) at which gene-flow frequency is equal to or lower than a threshold value of 1 or 0.1 % (MTD1%, MTD0.1%). After optimization of the model variables, simulated outcrossing rate was a good fit to data obtained from field experiments (y = 1.156x, R (2) = 0.8913, n = 30, P < P (0.01)). In the process of model calibration, it was found that only 15.82 % of the total amount of the pollen released by each plant participated in the dispersal process. The variable "a" for genetic pollen competitiveness between donor and recipient was introduced into our model, for the "Zinuo18" and "Su608" used, "a" was 17.47. Finally, the model was successfully used in the spring maize-growing region of Northeast China. The range of MTD1% and MTD0.1% in this region varied from 10 m to 49 m and from 17 m to 125 m, respectively
- 相关文献
作者其他论文 更多>>
-
Divergent chemical compositions of soil organic matter size fractions under long-term amendments across a climate gradient
作者:Song, Fanbo;Wang, Yidong;Hu, Ning;Lou, Yilai;Zhang, Huimin;Li, Dongchu;Zhu, Ping;Gao, Hongjun;Zhang, Shuiqing
关键词:N-containing compounds; Organo-mineral association; Particulate organic matter; Py-GC/MS; Soil organic matter chemistry
-
Expression of Cry1Ab/2Aj Protein in Genetically Engineered Maize Plants and Its Transfer in the Arthropod Food Web
作者:Chen, Yi;Xue, Jiabao;Zhang, Nan;Ma, Shulin;Guo, Anping;Liu, Biao;Peng, Yufa;Chen, Yi;Meissle, Michael;Xue, Jiabao;Zhang, Nan;Ma, Shulin;Yang, Yan;Xue, Jiabao;Zhang, Nan;Ma, Shulin;Yang, Yan;Liu, Biao;Song, Xinyuan;Yang, Yan;Li, Yunhe;Li, Yunhe
关键词:surrogate species; environmental risk assessment; transgenic maize; ELISA; non-target arthropods
-
Target site mutations and cytochrome P450s-involved metabolism confer resistance to nicosulfuron in green foxtail (Setaria viridis)
作者:Huang, Zhaofeng;Huang, Hongjuan;Li, Wenyu;Cao, Yi;Wei, Shouhui;Lu, Zongzhi
关键词:Nicosulfuron resistance; Acetolactate synthase (ALS); Setaria viridis; Metabolism; Cross resistance; Mutation
-
Post-agricultural restoration of soil organic carbon pools across a climate gradient
作者:Wang, Yidong;Xue, Dongmei;Kuzyakov, Yakov;Wang, Zhong-Liang;Wang, Yidong;Xue, Dongmei;Wang, Zhong-Liang;Hu, Ning;Lou, Yilai;Zhang, Qingzhong;Zhang, Limin;Zhu, Ping;Gao, Hongjun;Zhang, Shuiqing;Zhang, Huimin;Li, Dongchu;Song, Zhaoliang;Kurganova, Irina;Kuzyakov, Yakov;Kuzyakov, Yakov
关键词:Natural vegetation restoration; Particulate organic matter; Physical and biochemical protection; Soil organic matter fractionation; Land use
-
Consumption of Bt Maize Pollen Containing Cry1Ie Does Not Negatively Affect Propylea japonica (Thunberg) (Coleoptera: Coccinellidae)
作者:Yin, Xinming;Li, Yonghui;Liu, Yanmin;Romeis, Joerg;Chen, Xiuping;Geng, Lili;Peng, Yufa;Li, Yunhe;Romeis, Joerg;Song, Xinyuan
关键词:Bt maize;Cry1Ie;non-target effects;ladybirds;environmental risk assessment
-
Ingestion of Bt corn pollen containing Cry1Ab/2Aj or Cry1Ac does not harm Propylea japonica larvae
作者:Liu, Qingsong;Wang, Yanan;Chen, Xiuping;Romeis, Joerg;Li, Yunhe;Peng, Yufa;Song, Xinyuan;Romeis, Joerg
关键词:
-
Changes in H2O2 content and antioxidant enzyme gene expression during the somatic embryogenesis of Larix leptolepis
作者:Zhang, Shou-gong;Yang, Wen-hua;Wei, Hua-li;Qi, Li-wang;Han, Su-ying;Zhang, Ming
关键词:Somatic embryogenesis;Hydrogen peroxide;Catalase;Superoxide dismutase;Ascorbate peroxidase;L. leptolepis