• Animal cells and systems
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• 제12권4호
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• pp.231-240
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• 2008

The gorgonian coral Anthoplexaura dimorpha Kukenthal, 1908(Gorgonacea: Octocorallia) is abundant in Jejudo Islands, Korea. To investigate the sexual reproduction of this species, we surveyed the morphology and cycle of gametogenesis. 5-6cm long fragments from 3-7 randomly chosen colonies were collected monthly at a depth of 12-24m in the water surrounding Munseom from August 2003 to August 2005. This species was gonochoric with sex ratio of 1.86:1(female to male), and had one annual reproductive cycle affected by elevation of seawater temperature. Oogenesis was longer than spermatogenesis as 12 months in female and 6 months in male. The planulae were not observed from the field survey and histological sections, which suggested broadcast spawning for the reproductive mode in this species. The possible spawning events may occur after the seawater temperature attain to the annual peak in September.

• Animal Systematics, Evolution and Diversity
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• 제24권3호
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• pp.327-332
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• 2008

Soft coral Dendronephthya gigantea (Verrill, 1864) is a conspicuous species dominating shallow sea waters of Jejudo Island, Korea. Recently its whole mitochondrial genome sequencing was completed by us and the sequence information provided an opportunity to test the age of Octocorallia and time of evolutionary separation between some representative orders of the subclass Octocorallia. Molecular phylogenetic analyses based on 13 mitochondrial protein encoding genes revealed a polyphyletic relationship among octocorallians representing two orders (Alcyonacea and Gorgonacea) and four families (Alcyoniidae, Nephtheidae, Briareidae, and Gorgoniidae). Estimates of divergence times among octocorallians indicate that the first splitting might occur around end of or after Cretaceous period (50-79 million years ago (Ma)). The age is relatively young compared to the long history of stony sea corals (>240 Ma). Taken together our result suggests a possible relatively recent radiating evolution at least in the order Alcyonacea and Gorgonacea. Molecular dating and phylogenetic analysis based on much broader taxon sampling and many genes might give an insight into this interesting hypothesis.

• Animal Systematics, Evolution and Diversity
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• 제21권2호
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• pp.171-191
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• 2005

필리핀 보홀섬에서 채집된 뿔산호류에 공생하는 요각류 4신종을 기재하였다. 이들은 검물벼룩목(Cyclopolda)에 속하는 Acanthomolgus longiunguifer, A. geminus 및 Paramolgus incidentus, 그리고 대롱입요각목 (Siphonosto-matoida)에 속하는 Humescheres boholensis로서, 후자는 신속에 속한다.

• 한국동물학회지
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• 제23권1호
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• pp.25-40
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• 1980

著者는 한국산 八放珊瑚類의 계통분류학적 연구를 하기 위하여 1965년부터 1978년까지 제주도의 濟州, 爲美里, 林島, 西歸浦, 烏島, 門島, 虛島, 橫干島와 해운대의 尾浦등 9個 地域으로부터 채집한 標本들을 同定, 分類한 결과 다음과 같은 측뾰족산호科에 속하는 7屬 14種의 韓國未記錄種이 밝혀졌다. Bebryce indica, B. thomsoni, B. brocki, Calicogorgia granulosa, Filigella mitsukuri, Muricella abnormalis, Paracis pustulata, P. ijimai, Plexauroides reticulata, P. praelonga, P. rigida, P. complexa, Villogorgia alterans 및 V. antillarum.

• Animal cells and systems
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• 제1권1호
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• pp.43-52
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• 1997

Systematic relationship of 13 species representing seven orders of anthozoans, and one hydrozoan as an outgroup, were investigated. Distance and parsimony methods were used to analyze nucleotide sequence data obtained from the 18S rDNA. The inferred phylogeny indicates that two orders, Ceriantharia and Antipatharia within subclass Ceriantipatharia, are not closely related to each other. Instead, the former appears to be the most ancestral group among anthozoans but the latter is more closely related to order Actiniaria within subclass Zoantharia. The result also indicates that the actiniarian may not be a monophyletic group, because Epiactis Japonica is related more to order Scleractinia. Subclass Octocorallia appears to be a monophyletic group, within which order Pennatulacea diversed at first, and then orders Alcyonacea and Gorgonacea diversed later.

• 한국동물학회지
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• 제24권2호
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• pp.99-115
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• 1981

著者는 한국산 八放珊瑚類의 계통분류학적 연구를 하기 위하여 1965년부터 1978susRK지 동해의 울릉도 (苧洞, 道洞, 沙洞)와 남해의 尾浦, 海金剛, 鴻島, 황천도, 濟州, 爲美里, 林島, 地歸島, 西歸浦, 鳥島, 門島, 虛島등 15개 지역으로부터 채집된 標本들을 同定分類한 결과 다음과 같은 全軸類에 속하는 3科 7屬 15種을 얻었다. 이들은 모두 韓國 未記錄種이었으며 다음과 같다. Anthoplexaura dimorpha, Euplexaura anastomosans, E. abietina, E. crassa, E. recta, Ellisella maculata, E. rubra, E. limbaughi, Verrucella umbraculum, V. stellata, Primnoa reseda pacifica, Callogorgia pseudoflabellum, Plumarella spinosa, P. rigida 및 P. adharens.