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논문 기본 정보

자료유형
학술저널
저자정보
Potvin, Eric (Division of Polar Ocean Environment, Korea Polar Research Institute) Jeong, Hae Jin (School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University) Kang, Nam Seon (School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University) Noh, Jae Hoon (Marine Resources Research Department, KIOST) Yang, Eun Jin (Division of Polar Ocean Environment, Korea Polar Research Institute)
저널정보
한국조류학회(藻類) Algae Algae 제30권 제3호
발행연도
2015.1
수록면
183 - 195 (13page)

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초록· 키워드

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The dinoflagellate genus Pelagodinium is genetically classified in distinct sub-clades and subgroups. However, it is difficult to determine whether this genetic diversity represents intra- or interspecific divergence within the genus since only the morphology of the type strain of the genus Pelagodinium, Pelagodinium bei, is available. An isolate associated with the genus Pelagodinium from Shiwha Bay, Korea, was recently cultured. This isolate was clustered with 3 to 4 strains from the Atlantic Ocean, Mediterranean Sea, and Indian Ocean. This cluster was distinct from the subgroup more closely associated with P. bei. The morphology of the isolate was analyzed using optical and scanning electron microscopy and was almost identical to that of P. bei except that this isolate had two series of amphiesmal vesicles (AVs) in the cingulum, unlike P. bei that has one series. When the pigment compositions of the isolate and P. bei were analyzed using high-performance liquid chromatography, these two strains had peridinin as a major accessory pigment and their pigment compositions were almost identical. In addition, the swimming behaviors of these two strains were very similar. The reexamination of the type culture of P. bei revealed two series in the cingulum as for the isolate. The new findings on the number of series of AVs in the cingulum, the pigment composition, and the swimming behaviors suggest that P. bei and the isolate are conspecific despite their genetic divergence. This study provides a basis to further understand the molecular classification within Pelagodinium combining genetic, morphological, pigment, and behavioral data.

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