Phenotypic Plasticity in the Invasion of Crofton Weed (Eupatorium adenophorum) in China

	Phenotypic Plasticity in the Invasion of Crofton Weed (Eupatorium adenophorum) in China
	Zhao, Yujie ; Yang, Xuejun ; Xi, Xinqiang ; Gao, Xianming ; Sun, Shucun
刊名	WEED SCIENCE
	2012
卷号	60 期号:3 页码:431-439
关键词	Adaptation Ageratina adenophora (Spreng.) functional trait invasive species ISSR phenotypic plasticity rapid evolution
ISSN号	0043-1745
通讯作者	Gao, XM (reprint author), Chinese Acad Sci, State Key Lab Vegetat & Environm Change, Inst Bot, Beijing 100093, Peoples R China.
产权排序	3
英文摘要	Phenotypic plasticity and rapid evolution are two important strategies by which invasive species adapt to a wide range of environments and consequently are closely associated with plant invasion. To test their importance in invasion success of Crofton weed, we examined the phenotypic response and genetic variation of the weed by conducting a field investigation, common garden experiments, and intersimple sequence repeat (ISSR) marker analysis on 16 populations in China. Molecular markers revealed low genetic variation among and within the sampled populations. There were significant differences in leaf area (LA), specific leaf area (SLA), and seed number (SN) among field populations, and plasticity index (Ply) for LA, SLA, and SN were 0.62, 0.46 and 0.85, respectively. Regression analyses revealed a significant quadratic effect of latitude of population origin on LA, SLA, and SN based on field data but not on traits in the common garden experiments (greenhouse and open air). Plants from different populations showed similar reaction norms across the two common gardens for functional traits. LA, SLA, aboveground biomass, plant height at harvest, first flowering day, and life span were higher in the greenhouse than in the open-air garden, whereas SN was lower. Growth conditions (greenhouse vs. open air) and the interactions between growth condition and population origin significantly affect plant traits. The combined evidence suggests high phenotypic plasticity but low genetically based variation for functional traits of Crofton weed in the invaded range. Therefore, we suggest that phenotypic plasticity is the primary strategy for Crofton weed as an aggressive invader that can adapt to diverse environments in China.
学科主题	Agriculture; Plant Sciences
收录类别	SCI
资助信息	National Basic Research Program (973 Project) [2009CB119200]
语种	英语
WOS记录号	WOS:000307137300017
公开日期	2013-07-03
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/23817]
专题	成都生物研究所_生态研究
推荐引用方式 GB/T 7714	Zhao, Yujie,Yang, Xuejun,Xi, Xinqiang,et al. Phenotypic Plasticity in the Invasion of Crofton Weed (Eupatorium adenophorum) in China[J]. WEED SCIENCE,2012,60(3):431-439.
APA	Zhao, Yujie,Yang, Xuejun,Xi, Xinqiang,Gao, Xianming,&Sun, Shucun.(2012).Phenotypic Plasticity in the Invasion of Crofton Weed (Eupatorium adenophorum) in China.WEED SCIENCE,60(3),431-439.
MLA	Zhao, Yujie,et al."Phenotypic Plasticity in the Invasion of Crofton Weed (Eupatorium adenophorum) in China".WEED SCIENCE 60.3(2012):431-439.