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Suzuki G, Kadota T, Yatsuya K, Muko S, Arakaki S, Kiyomoto S, Yoshimura T. Occasional loss of fecundity in peripheral coral populations. Ecol Res 2020. [DOI: 10.1111/1440-1703.12177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Go Suzuki
- Seikai National Fisheries Research Institute Nagasaki Japan
| | - Tatsuru Kadota
- Seikai National Fisheries Research Institute Nagasaki Japan
| | | | - Soyoka Muko
- Graduate School of Fisheries Science and Environmental Studies Nagasaki University Nagasaki Japan
| | - Seiji Arakaki
- Amakusa Marine Biological Laboratory Kyushu University Kumamoto Japan
| | - Setuo Kiyomoto
- Seikai National Fisheries Research Institute Nagasaki Japan
| | - Taku Yoshimura
- Seikai National Fisheries Research Institute Nagasaki Japan
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Chow S, Konishi K, Mekuchi M, Tamaki Y, Nohara K, Takagi M, Niwa K, Teramoto W, Manabe H, Kurogi H, Suzuki S, Ando D, Tadao Jinbo, Kiyomoto M, Hirose M, Shimomura M, Kurashima A, Ishikawa T, Kiyomoto S. DNA barcoding and morphological analyses revealed validity of Diadema clarki Ikeda, 1939 (Echinodermata, Echinoidea, Diadematidae). Zookeys 2016:1-16. [PMID: 27199601 PMCID: PMC4857035 DOI: 10.3897/zookeys.585.8161] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 03/31/2016] [Indexed: 11/17/2022] Open
Abstract
A long-spined sea urchin Diadema-sp reported from Japanese waters was genetically distinct from all known Diadema species, but it remained undescribed. Extensive field surveys in Japan with molecular identification performed in the present study determined five phenotypes (I to V) in Diadema-sp according to the presence and/or shape of a white streak and blue iridophore lines in the naked space of the interambulacral area. All phenotypes were distinct from Diademasetosum (Leske, 1778) and Diademasavignyi (Audouin, 1829), of which a major type (I) corresponded to Diademaclarki Ikeda, 1939 that was questioned and synonymized with Diademasetosum by Mortensen (1940). The holotype of Diademaclarki has not been found, but three unlabeled dried tests of Diadema were found among Ikeda’s original collection held in the Kitakyushu Museum of Natural History and Human History, Fukuoka, Japan. A short mtDNA COI fragment (ca. 350bp) was amplified from one of the tests, and the nucleotide sequence determined (275bp) was nearly identical with that of Diadema-sp. Arrangements of the primary tubercles on the coronal plates in Diadema-sp and the museum specimen also conformed with Diademaclarki, indicating that Diadema-sp is identical to Diademaclarki and a valid species. Narrow latitudinal distribution (31°N to 35°N) of Diademaclarki in Japan was observed, where it co-existed with abundant Diademasetosum and rare Diademasavignyi. No Diademaclarki was found in the southern islands in Japan, such as Satsunan Islands to Ryukyu Islands and Ogasawara Island, where Diademasetosum and Diademasavignyi were commonly observed.
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Affiliation(s)
- Seinen Chow
- National Research Institute of Fisheries Science, 2-12-4 Fukuura, Yokohama, Kanagawa 236-8648, Japan
| | - Kooichi Konishi
- National Research Institute of Fisheries Science, 2-12-4 Fukuura, Yokohama, Kanagawa 236-8648, Japan
| | - Miyuki Mekuchi
- National Research Institute of Fisheries Science, 2-12-4 Fukuura, Yokohama, Kanagawa 236-8648, Japan
| | - Yasuji Tamaki
- National Research Institute of Fisheries Science, 2-12-4 Fukuura, Yokohama, Kanagawa 236-8648, Japan
| | - Kenji Nohara
- Tokai University, Shizuoka, Shizuoka 424-8610, Japan
| | | | - Kentaro Niwa
- Yokosuka Laboratory, National Research Institute of Fisheries Science, Kanagawa 238-0316, Japan
| | - Wataru Teramoto
- Yokosuka Laboratory, National Research Institute of Fisheries Science, Kanagawa 238-0316, Japan
| | - Hisaya Manabe
- Yokosuka Laboratory, National Research Institute of Fisheries Science, Kanagawa 238-0316, Japan
| | - Hiroaki Kurogi
- Yokosuka Laboratory, National Research Institute of Fisheries Science, Kanagawa 238-0316, Japan
| | - Shigenori Suzuki
- Minami-Izu Laboratory, National Research Institute of Aquaculture, Shizuoka 415-0156, Japan
| | - Daisuke Ando
- Minami-Izu Laboratory, National Research Institute of Aquaculture, Shizuoka 415-0156, Japan
| | - Tadao Jinbo
- Shibushi Laboratory, National Research Institute of Aquaculture, Kagoshima 899-7101, Japan
| | - Masato Kiyomoto
- Marine and Coastal Research Center, Ochanomizu University, Tateyama, Chiba 294-0301, Japan
| | - Mamiko Hirose
- Marine and Coastal Research Center, Ochanomizu University, Tateyama, Chiba 294-0301, Japan
| | - Michitaka Shimomura
- Kitakyushu Museum of Natural History and Human History, Kitakyushu, Fukuoka 805-0071, Japan
| | | | | | - Setuo Kiyomoto
- Seikai National Fisheries Research Institute, Nagasaki, Nagasaki 851-2213, Japan
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Chow S, Kajigaya Y, Kurogi H, Niwa K, Shibuno T, Nanami A, Kiyomoto S. On the fourth Diadema species (Diadema-sp) from Japan. PLoS One 2014; 9:e102376. [PMID: 25054386 PMCID: PMC4108327 DOI: 10.1371/journal.pone.0102376] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 06/17/2014] [Indexed: 11/18/2022] Open
Abstract
Four long-spined sea urchin species in the genus Diadema are known to occur around the Japanese Archipelago. Three species (D. savignyi, D. setosum, and D. paucispinum) are widely distributed in the Indo-Pacific Ocean. The fourth species was detected by DNA analysis among samples originally collected as D. savignyi or D. setosum in Japan and the Marshall Islands and tentatively designated as Diadema -sp, remaining an undescribed species. We analyzed nucleotide sequences of the cytochrome oxidase I (COI) gene in the “D. savignyi-like” samples, and found all 17 individuals collected in the mainland of Japan (Sagami Bay and Kyushu) to be Diadema-sp, but all nine in the Ryukyu Archipelago (Okinawa and Ishigaki Islands) to be D. savignyi, with large nucleotide sequence difference between them (11.0%±1.7 SE). Diadema-sp and D. savignyi shared Y-shaped blue lines of iridophores along the interambulacrals, but individuals of Diadema-sp typically exhibited a conspicuous white streak at the fork of the Y-shaped blue iridophore lines, while this feature was absent in D. savignyi. Also, the central axis of the Y-shaped blue lines of iridophores was approximately twice as long as the V-component in D. savignyi whereas it was of similar length in Diadema-sp. Two parallel lines were observed to constitute the central axis of the Y-shaped blue lines in both species, but these were considerably narrower in Diadema-sp. Despite marked morphological and genetic differences, it appears that Diadema-sp has been mis-identified as D. savignyi for more than half a century.
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Affiliation(s)
- Seinen Chow
- National Research Institute of Fisheries Science, Yokohama, Kanagawa, Japan
- * E-mail:
| | - Yoshikazu Kajigaya
- Yokosuka Laboratory, National Research Institute of Aquaculture, Yokosuka, Kanagawa, Japan
| | - Hiroaki Kurogi
- Yokosuka Laboratory, National Research Institute of Aquaculture, Yokosuka, Kanagawa, Japan
| | - Kentaro Niwa
- Yokosuka Laboratory, National Research Institute of Aquaculture, Yokosuka, Kanagawa, Japan
| | - Takuro Shibuno
- Yokosuka Laboratory, National Research Institute of Aquaculture, Yokosuka, Kanagawa, Japan
| | - Atsushi Nanami
- Ishigaki Laboratory, Seikai National Fisheries Research Institute, Ishigaki, Okinawa, Japan
| | - Setuo Kiyomoto
- Seikai National Fisheries Research Institute, Nagasaki, Nagasaki, Japan
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