Clonal diversity and structure of the invasive aquatic plant Eichhornia crassipes in China

doi:10.1016/j.aquabot.2007.06.002

CORC > 武汉植物园 > 中国科学院武汉植物园

	Clonal diversity and structure of the invasive aquatic plant Eichhornia crassipes in China
	Zhang, Quan G.; Ren, Ming X.
刊名	AQUATIC BOTANY
	2007-10-01
卷号	87 期号:3 页码:242-246
关键词	Eichhornia crassipes biological invasion clonal diversity clonal structure random amplified polymorphic DNA (RAPD)
ISSN号	0304-3770
DOI	10.1016/j.aquabot.2007.06.002
英文摘要	The information on diversity and spatial distribution of clones of an invasive clonal plant is crucial for the understanding of its clonal structure and invasive history. In this paper, random amplified polymorphic DNA (RAPD) markers were used to explore the clonal diversity and clonal structure of Eichhornia crassipes (Mart.) Solms in natural populations, and their possible effects on the plant success as an invader are also discussed. Five populations covering the entire distribution area in China were studied, sampling 43 individuals per population at an interval of I m in a sampling plot. Twelve RAPD primers produced 69 reproducible bands, with 22 being polymorphic. Only five RAPD phenotypes (clones) were detected in these five populations, but each population consisted of at least three clones, contrary to the traditional expectations that E. crassipes populations should be monoclonal. The diversity of clones within populations is thought to be mainly resulted from multiple introductions by humans. The evenness of distribution of clones varied slightly and most clones were widespread, suggesting clonal growth is the predominant mode of regeneration in all the populations. A single clone dominated each population and this clone might be the first one introduced into China or the genotype with a higher phenotypic plasticity, which could survive and reproduce via clonal growth in various habitats. The clones in each population were highly intermixed, especially in river populations, suggesting this species has a guerilla clonal structure which can be facilitated by water current. (c) 2007 Elsevier B.V. All rights reserved.
WOS研究方向	Plant Sciences ; Marine & Freshwater Biology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000249874900009
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/1128]
专题	中国科学院武汉植物园
通讯作者	Ren, Ming X.
作者单位	1.Beijing Normal Univ, Coll Life Sci, Inst Ecol, Minist Educ Key Lab Biodiver Sci & Ecol Engn, Beijing 100875, Peoples R China 2.Chinese Acad Sci, Wuhan Bot Garden, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Quan G.,Ren, Ming X.. Clonal diversity and structure of the invasive aquatic plant Eichhornia crassipes in China[J]. AQUATIC BOTANY,2007,87(3):242-246.
APA	Zhang, Quan G.,&Ren, Ming X..(2007).Clonal diversity and structure of the invasive aquatic plant Eichhornia crassipes in China.AQUATIC BOTANY,87(3),242-246.
MLA	Zhang, Quan G.,et al."Clonal diversity and structure of the invasive aquatic plant Eichhornia crassipes in China".AQUATIC BOTANY 87.3(2007):242-246.