Spread of introgressed insect-resistance genes in wild populations of Brassica juncea: a simulated in-vivo approach

doi:10.1007/s11248-012-9679-y

	Spread of introgressed insect-resistance genes in wild populations of Brassica juncea: a simulated in-vivo approach
	Liu, Yongbo 1; Wei, Wei 2; Ma, Keping2 ; Darmency, Henri 1
	2013
发表期刊	TRANSGENIC RESEARCH
ISSN	0962-8819
卷号	22 期号:4 页码:747-756
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.
关键词	Insect-resistance Seed production Invasiveness potential Replacement series Simulated herbivory Wild brown mustard
学科领域	Biochemical Research Methods ; Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology
DOI	10.1007/s11248-012-9679-y
收录类别	SCI
语种	英语
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)
WOS记录号	WOS:000321919200007
出版者	SPRINGER
文献子类	Article
出版地	DORDRECHT
资助机构	CNOUS ; National Natural Science Foundation of China (NSFC)(National Natural Science Foundation of China (NSFC))
作者邮箱	Liu, Yongbo/H-3984-2015 ; , Weiwei/B-2681-2008
引用统计	被引频次：18[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	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.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China 2.Inst Natl Rech Agron, INRA, UMR1347, F-21065 Dijon, France 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, 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.

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