• 제목/요약/키워드: Batillipes

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한국산 해양 완보류의 분류학적 연구 I. Batillipes 속 (이완보 강: Batillipedidae 과) (Taxonomic Study of Marine Tardigrades from Korea I. Genus Batillipes (Heterotardigrada: Batillipediae))

  • 노현수;민봉희;장천영
    • Animal Systematics, Evolution and Diversity
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    • 제15권1호
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    • pp.107-118
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    • 1999
  • 1995년 2월부터 1998년 11월까지 한국 해안의 조간대와 조하대의 모래틈이나 부식질틈에서 채집된 Batillipes 속 해양완보류를 조사한 결과, 29개 지점에서 출현한 8종을 동정.분류하였다. 이 가운데 1종(B. rotundiculus n. sp.)은 신종, 5종(B. pennaki Marcus, B. similis Schulz, B. tridentatus Pollock, B. crassipes Tchesunov and Mokievsky, B. philippinensis Chang and Rho)은 한국 미기록종이었다. 신종을 기재하였고, 5종의 한국 미기록종에 대하여는 삽화와 함께 간략히 고찰하였으며, 한국산 Batillipes 속에 대한 종검색표를 작성하였다.

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Batillipes속 (이완보강, Batillipedidae과)의 해양 완보류 2신종 (Two New Marine Tardigrades of Genus Batillipes (Heterotardigrada: Batillipedidae) from Korea)

  • 장천영;노현수
    • Animal Systematics, Evolution and Diversity
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    • 제13권2호
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    • pp.93-102
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    • 1997
  • 조간대와 수심 20m 미만의 조하대 모래틈에서 채집한 해양 완보류 2신종 - Batillipes longispinosus n. sp., B. orientalis n. sp. - 을 기재한다. 이들 2신종은 미성숙 개체와 성체 모두에서 몸통 뒷부분에 돌기가 없으며 머리에 난 여러 돌기들이 길다는 점, 제 4다리위에 긴돌기를 가진다는 점에서 특징적이다. B. longispinosus n. sp.는 Batillipes 속에 기록된 21종 중에서 B. tubernatis Pollock과 가장 유사하나 4번째 다리에 긴 돌기를 가지는 점에서 다르다. 또한 B. orientalis n. sp. 는 몸 측면 돌기를 가진다는 점에서 B. roscoffensis Kristensen와 닮았으나 머리의 모양과 4번째 다리에 긴 돌기를 가지는 점에서 뚜렷하게 구별된다.

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Partial Mitochondrial Gene Arrangements Support a Close Relationship between Tardigrada and Arthropoda

  • Ryu, Shi Hyun;Lee, Ji Min;Jang, Kuem-Hee;Choi, Eun Hwa;Park, Shin Ju;Chang, Cheon Young;Kim, Won;Hwang, Ui Wook
    • Molecules and Cells
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    • 제24권3호
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    • pp.351-357
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    • 2007
  • Regions (about 3.7-3.8 kb) of the mitochondrial genomes (rrnL-cox1) of two tardigrades, a heterotardigrade, Batillipes pennaki, and a eutardigrade, Pseudobiotus spinifer, were sequenced and characterized. The gene order in Batillipes was $\underline{rrnL}-\underline{V}-\underline{rrnS}-\underline{Q}-\underline{I}$-M-nad2-W-$\underline{C}-\underline{Y}$-cox1, and in Pseudobiotus it was $\underline{rrnL}-\underline{V}-\underline{rrnS}-\underline{Q}$-M-nad2-W-$\underline{C}-\underline{Y}$-cox1. With the exception of the trnI gene, the two tardigrade regions have the same gene content and order. Their gene orders are strikingly similar to that of the chelicerate Limulus polyphemus (rrnL-V-rrnS-CR-I-Q-M-nad2-W-C-Y-cox1), which is considered to be ancestral for arthropods. Although the tardigrades do not have a distinct control region (CR) within this segment, the trnI gene in Pseudobiotus is located between rrnL-trnL1 and trnL2-nad1, and the trnI gene in Batillipes is located between trnQ and trnM. In addition, the 106-bp region between trnQ and trnM in Batillipes not only contains two plausible trnI genes with opposite orientations, but also exhibits some CR-like characteristics. The mitochondrial gene arrangements of 183 other protostomes were compared. 60 (52.2%) of the 115 arthropods examined have the M-nad2-W-C-Y-cox1 arrangement, and 88 (76.5%) the M-nad2-W arrangement, as found in the tardigrades. In contrast, no such arrangement was seen in the 70 non-arthropod protostomes studied. These are the first non-sequence molecular data that support the close relationship of tardigrades and arthropods.

Two New Marine Tardigrades from Palawan Island, the Philippines

  • 창천영;노현수
    • Animal cells and systems
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    • 제1권3호
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    • pp.419-423
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    • 1997
  • Two new marine tardigrades, florarctus kwoni n. sp. and Batillipes philippinensis n. sp. belonging to Halechiniscidae and Batillipedidae, respectively, are described on the basis of the specimens sieved from sublittoral coral sands and shell gravels of Palawan Island, the Philippines. florarctus kwoni n. sp. is characterized by the rocket-shaped aliform expansion, with the distal margin of posterior ala flattened. Batillipes philippinensis n. sp. closely resembles B. similis Schulz, 1955 and B. annulatus De Zio, 1962. However, it is clearly discernible from the former by the shape of lateral body projection between leg III and leg IV, and the relative length of cirrus E and the spine on leg IV, and from the latter by the shape of the lateral body projection and the clavar shape. This is the first report of the marine tardigrades from the Philippines.

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