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Assessment by microsatellite analysis of genetic diversity and population structure of Enhalus acoroides from the coast of Khanh Hoa Province, Vietnam

Acta Oceanologica Sinica volume 38, pages 144–150 (2019)Cite this article

Abstract

Seagrass beds degraded significantly since the last century on both, global and local scale. The seagrass species Enhalus acoroides (Linnaeus f.) Royle is a common species found in almost all marine ecosystems including bays, lagoons and around offshore islands in tropical regions of the West Pacific. It was shown that genetic diversity is an essential indicator of the conditions of ecosystems. In the present study, microsatellite markers were used to assess the genetic diversity and population structure of six distinct seagrass beds along the coast of the Khanh Hoa Province, Vietnam. The results indicate that the genetic diversity of the populations in the open sea is higher than in the lagoon. Seagrass beds occurring in disturbed sites show reduced genetic diversity. The fixing index value (FST) depicts a relatively high genetic structure among populations. Structure analysis clusters the populations into open sea and lagoon populations and cluster analysis and AMOVA indicate a significant difference between the two groups. There are low but non-significant positive correlations between geographic and genetic distances. The different habitats of the open sea and the lagoon are probably responsible for forming two groups.

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Acknowledgements

We express our gratitude to the staff of the Institute of Oceanography, Vietnam, and the Institute of Botany, Leibniz University Hannover, Germany, for providing the necessary facilities to carry out this work. We are deeply indebted to T Debener and M Linde for giving technical advices and access to equipment for the analysis.

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Authors and Affiliations

  1. Department of Marine Botany, Institute of Oceanography, Vietnam Academy of Science and Technology, Nha Trang, 650000, Vietnam

    Xuan-Vy Nguyen

  2. Graduate University of Science and Technology, Ha Noi, 100000, Vietnam

    Xuan-Vy Nguyen

  3. Institute of Botany, Leibniz University Hannover, Hannover, 30419, Germany

    Papenbrock Jutta

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  1. Xuan-Vy Nguyen
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  2. Papenbrock Jutta
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Correspondence to Xuan-Vy Nguyen.

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Foundation item: The NAFOSTED under contract No. 106-NN.02-2014.04; the Umbrella of JSPS Core-to-core Program, B. Asia-Africa Science Platforms.

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Nguyen, XV., Jutta, P. Assessment by microsatellite analysis of genetic diversity and population structure of Enhalus acoroides from the coast of Khanh Hoa Province, Vietnam. Acta Oceanol. Sin. 38, 144–150 (2019). https://doi.org/10.1007/s13131-019-1381-y

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