Mapping distribution of cysts of recent dinoflagellate and Cochlodinium polykrikoides using next-generation sequencing and morphological approaches in South Sea, Korea
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Title
- Mapping distribution of cysts of recent dinoflagellate and Cochlodinium polykrikoides using next-generation sequencing and morphological approaches in South Sea, Korea
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Author(s)
- Jung, Seung Won; Kang, Donhyug; Kim, Hyun-Jung; Shin, Hyeon Ho; Park, Joon Sang; Park, So Yun; Lee, Taek-Kyun
- KIOST Author(s)
- Jung, Seung Won(정승원); Kang, Don Hyug(강돈혁); Kim, Hyun-Jung(김현정); Park, Joon Sang(박준상); Lee, Taek Kyun(이택견)
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Alternative Author(s)
- 정승원; 강돈혁; 김현정; 신현호; 박준상; 박소윤; 이택견
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Publication Year
- 2018-05-03
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Abstract
- The total dinoflagellate cyst community and the cysts of Cochlodinium polykrikoides in the surface sediments of South Sea (Tongyeong coast), South Korea, were analysed using next-generation sequencing (NGS) and morphological approaches. Dinoflagellate cysts can be highly abundant (1114,087 cysts g(-1) dry weight) and have diverse species composition. A total of 35 taxa of dinoflagellate cysts representing 16 genera, 21 species (including four unconfirmed species), and 14 complex species were identified by NGS analysis. Cysts of Scrippsiella spp (mostly Scrippsiella trochoidea) were the most dominant and Polykrikos schwartzii, Pentapharsodinium dalei, Ensiculifera carinata, and Alexandrium catenella/tamarense were common. Thus, a combination of NGS and morphological analysis is effective for studying the cyst communities present in a given environment. Although C. polykrikoides developed massive blooms during 2013-2014, microscopy revealed low density of their cysts, whereas no cysts were detected by NGS. However, the vegetative C. polykrikoides not appeared during 2015-2017 in spite of the observation of C. polykrikoides cysts. This suggests that the C. polykrikoides blooms were not due to development of their cysts but to other factors such as currents transporting them to a marine environment suitable for their growth.
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ISSN
- 2045-2322
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/2105
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DOI
- 10.1038/s41598-018-25345-4
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Bibliographic Citation
- SCIENTIFIC REPORTS, v.8, 2018
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Publisher
- NATURE PUBLISHING GROUP
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Subject
- COASTAL WATERS; ENVIRONMENTAL DNA; RESTING CYSTS; RED TIDES; DINOPHYCEAE; SCRIPPSIELLA; PHYLOGENY; COMMUNITY; SEDIMENTS; MARGALEF
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Type
- Article
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Language
- English
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Document Type
- Article
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