Spread of introgressed insect-resistance genes in wild populations of Brassica juncea: a simulated in-vivo approach
文献类型：期刊论文
| 作者 | Liu, Yongbo3; Wei, Wei1; Ma, Keping1 ; Darmency, Henri3
|
| 刊名 | TRANSGENIC RESEARCH
 |
| 出版日期 | 2013 |
| 卷号 | 22期号:4页码:747-756 |
| 关键词 | Insect-resistance Seed production Invasiveness potential Replacement series Simulated herbivory Wild brown mustard |
| ISSN号 | 0962-8819 |
| DOI | 10.1007/s11248-012-9679-y |
| 文献子类 | Article |
| 英文摘要 | Introgression between transgenic, insect-resistant crops and their wild relatives could lead to a progressive increase of the frequency of resistant plants in wild populations. However, few studies help predict the impact on the population dynamics. To simulate the performance of introgressed insect-resistant plants of wild Brassica juncea, independently from the interspecific hybridization cost, healthy plants were cultivated in pure and mixed stands with damaged plants through cutting leaves in field experiments over two field seasons. As expected, resistant (healthy) plants held a competitive advantage when in competition with susceptible (damaged) plants. Individual biomass and seed production of both types of plants decreased as the percentage of resistant plants increased, so that the relative advantage of resistant plants increased. The combined effects of defoliation and competition on the individual performance of B. juncea were additive. Replacement series experiments confirmed this trend but did not show different seed output in pure stand of susceptible versus resistant plots. The total vegetative and reproductive production of mixed populations was not significantly different of that of pure populations. These results suggest that if a transgene for insect-resistance were to colonize wild populations, high herbivory of susceptible plant and low resource availability would facilitate the spread of resistant individuals. However, at the population level, the shift from an insect-susceptible to a predominantly resistant population would not result in exacerbated habitat colonization. |
| 学科主题 | Biochemical Research Methods ; Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology |
| 出版地 | DORDRECHT |
| WOS关键词 | INTRASPECIFIC COMPETITION ; ANTAGONISTIC INTERACTIONS ; OILSEED RAPE ; B-RAPA ; HERBIVORY ; NAPUS ; HYBRIDS ; TRANSGENES ; RELATIVES ; FITNESS |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000321919200007 |
| 出版者 | SPRINGER |
| 资助机构 | CNOUS ; National Natural Science Foundation of China (NSFC)(National Natural Science Foundation of China (NSFC)) |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/27919]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Inst Natl Rech Agron, INRA, UMR1347, F-21065 Dijon, France 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Yongbo,Wei, Wei,Ma, Keping,et al. Spread of introgressed insect-resistance genes in wild populations of Brassica juncea: a simulated in-vivo approach[J]. TRANSGENIC RESEARCH,2013,22(4):747-756. |
| APA | Liu, Yongbo,Wei, Wei,Ma, Keping,&Darmency, Henri.(2013).Spread of introgressed insect-resistance genes in wild populations of Brassica juncea: a simulated in-vivo approach.TRANSGENIC RESEARCH,22(4),747-756. |
| MLA | Liu, Yongbo,et al."Spread of introgressed insect-resistance genes in wild populations of Brassica juncea: a simulated in-vivo approach".TRANSGENIC RESEARCH 22.4(2013):747-756. |
入库方式： OAI收割
来源：植物研究所
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