Mapping distribution of cysts of recent dinoflagellate and Cochlodinium polykrikoides using next-generation sequencing and morphological approaches in South Sea, Korea

DC Field Value Language
dc.contributor.author 정승원 -
dc.contributor.author 김현정 -
dc.contributor.author 이택견 -
dc.date.accessioned 2020-07-15T10:32:19Z -
dc.date.available 2020-07-15T10:32:19Z -
dc.date.created 2020-02-11 -
dc.date.issued 2018-10-29 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/22946 -
dc.description.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 (111– 4,087 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.oflagellate cysts can be highly abundant (111– 4,087 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. -
dc.description.uri 1 -
dc.language English -
dc.publisher PICES -
dc.relation.isPartOf PICES -
dc.title Mapping distribution of cysts of recent dinoflagellate and Cochlodinium polykrikoides using next-generation sequencing and morphological approaches in South Sea, Korea -
dc.type Conference -
dc.citation.conferencePlace JA -
dc.citation.endPage 200 -
dc.citation.startPage 200 -
dc.citation.title PICES -
dc.contributor.alternativeName 정승원 -
dc.contributor.alternativeName 김현정 -
dc.contributor.alternativeName 이택견 -
dc.identifier.bibliographicCitation PICES, pp.200 -
dc.description.journalClass 1 -
Appears in Collections:
South Sea Research Institute > Library of Marine Samples > 2. Conference Papers
South Sea Research Institute > Risk Assessment Research Center > 2. Conference Papers
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