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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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