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Publication Type J
Authors Jiang, K; Xu, NN; Tsang, PKE; Chen, XY
Author Full Name Jiang, Kai; Xu, Na-Na; Tsang, Po Keung Eric; Chen, Xiao-Yong
Title Genetic variation in populations of the threatened seagrass Halophila beccarii (Hydrocharitaceae)
Source BIOCHEMICAL SYSTEMATICS AND ECOLOGY
Language English
Document Type Article
Author Keywords Microsatellites; Genetic diversity; Genetic differentiation; Seagrass; Halophila beccarii
Keywords Plus POSIDONIA-OCEANICA; DIVERSITY; DIFFERENTIATION; G(ST); CLONALITY; SOFTWARE; NUMBER; OVALIS; PLANT; BEDS
Abstract Halophila beccarii (Hydrocharitaceae), a small monoecious seagrass, has been listed as a threatened species. In this study, a total of 106 samples were collected from four Chinese populations located at the northern limit of its distribution range. Using six polymorphic microsatellites, we found low genetic variation in this species, in which the mean number of alleles per locus was 2.8, and 16 multi-locus genotypes were revealed. In the four populations, the mean number of alleles per locus ranged from 1.2 to 2, one to eight genotypes were found, and clonal diversity ranged from 0 to 0.23; observed and expected heterozygosity ranged from 0.17 to 0.40 and from 0.09 to 0.24, respectively. Strong genetic differentiation was found among the populations, and the standardized fixation index (F-ST) was 0.787. Species traits (i.e., clonal growth) and bottleneck effects due to drastic population fluctuation may contribute to the observed low genetic variation. (C) 2013 Elsevier Ltd. All rights reserved.
Author Address [Jiang, Kai; Xu, Na-Na; Chen, Xiao-Yong] East China Normal Univ, Shanghai Key Lab Urban Ecol Proc & Ecorestorat, Sch Resources & Environm Sci, Shanghai 200241, Peoples R China; [Xu, Na-Na] Zhejiang Univ, Zhoushan Ocean Res Ctr Zhoushan, Zhoushan 316021, Peoples R China; [Tsang, Po Keung Eric] Hong Kong Inst Educ, Dept Sci & Environm Studies, Hong Kong, Hong Kong, Peoples R China
Reprint Address Chen, XY (reprint author), East China Normal Univ, Shanghai Key Lab Urban Ecol Proc & Ecorestorat, Sch Resources & Environm Sci, Shanghai 200241, Peoples R China.
E-mail Address xychen@des.ecnu.edu.cn
Funding Agency and Grant Number National High-tech Research and Development Program [2007AA09Z432];
Funding Text We thank the anonymous reviewer for the constructive comments and suggestions, and Min Liu, Xin Tong, Junguo Zhang and the crew of the Management Station of Hepu Dugong National Natural Reserves for their helps in sample collection. This work was supported by the National High-tech Research and Development Program (2007AA09Z432) and
Cited Reference Count 54
Times Cited 5
Total Times Cited Count (WoS, BCI, and CSCD) 5
Publisher PERGAMON-ELSEVIER SCIENCE LTD
Publisher City OXFORD
Publisher Address THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
ISSN 0305-1978
29-Character Source Abbreviation BIOCHEM SYST ECOL
ISO Source Abbreviation Biochem. Syst. Ecol.
Publication Date APR
Year Published 2014
Volume 53
Beginning Page 29
Ending Page 35
Digital Object Identifier (DOI) 10.1016/j.bse.2013.12.004
Page Count 7
Web of Science Category Biochemistry & Molecular Biology; Ecology; Evolutionary Biology
Subject Category Biochemistry & Molecular Biology; Environmental Sciences & Ecology; Evolutionary Biology
Document Delivery Number AG0IN
Unique Article Identifier WOS:000335099300005
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