論文 - 富永　篤

Spontaneous oral chytridiomycosis in wild bullfrog tadpoles in Japan.

Kadekaru S, Tamukai K, Tominaga A, Goka K, Une Y

The Journal of veterinary medical science ( JAPANESE SOCIETY OF VETERINARY SCIENCE )  78 ( 4 ) 573 - 7   2016年05月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

　概要を見る

<i>Batrachochytrium dendrobatidis</i> (Bd) infects Anuran larvae (tadpole) mouthparts and causes oral chytridiomycosis, which can be diagnosed in tadpoles by detecting mouthparts deformities. However, oral chytridiomycosis may or may not be observable, depending on species, tadpole stage and season, and has never been reported in Japan. We aimed to observe oral chytridiomycosis characteristics in bullfrog (<i>Lithobates catesbeiana</i>) tadpoles, determine associated pathologic features and investigate the usability of bullfrog tadpoles in Japanese Bd field surveys. Wild-captured bullfrog tadpole mouthparts were examined macroscopically, histopathologically and by molecular biological examination. Macroscopic lesions were observed in 21 of 59 tadpole mouthparts. Lesions were most frequently located in the lower jaw sheaths and were mainly recognized by partial depigmentation (11 tadpoles; some were completely depigmented) and thinning of the pigmented layer (10 tadpoles). Partial defects of the tips and blunt cutting edges of the jaw sheaths were observed with severe jaw sheath depigmentation. Whitened tooth rows were observed in 7 tadpoles. Histologically, the stratified epithelium (pigmented epithelium) showed partial or diffuse hypopigmentation or pigment loss. Irregular stratified epithelium thickening with hyperkeratosis or parakeratosis was observed in the jaw sheaths. Bd infection was confirmed in 20 of 21 tadpoles presenting jaw sheath deformities, by histopathological examination and/or nested polymerase chain reaction. Depigmentation and thinning of the pigmented layers of jaw sheaths were associated with Bd infection. Thus, diagnosis of Bd infection by macroscopic observation of bullfrog tadpole mouthparts is feasible. This is the first report of oral chytridiomycosis in wild bullfrog tadpoles in Japan.

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Origin and genetic uniformity of introduced population of Cynops pyrrhogaster (Amphibia: Urodela) on Hachijojima Island

Tominaga, A., Meyer-Rochow, V. B., Okamoto, T., Kuriyama, T., Nishikawa, K., Matsui, M.

Current Herpetology ( Herpetological Society of Japan )  35 ( 1 ) 64 - 68   2016年02月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

　概要を見る

Using mitochondrial DNA sequences, we surveyed genetic features of 12 individuals of Cynops pyrrhogaster introduced into Hachijojima Island, in order to estimate their possible origin in the main islands of Japan. The phylogenetic analysis revealed that the 12 examined newts of the introduced population display no genetic diversity and share characteristics with the conspecific population of Shikoku and thus belong to the WESTERN Clade proposed by earlier studies. Our results suggest that the Hachijojima population, having experienced a drastic founder effect, stems from very few individuals from the Shikoku District approximately 650 km to the west.

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リュウキュウカジカガエルの変態サイズ、野外、飼育下での成長速度

仲宗根貴道，田場美沙基，清澤昇太，富永篤

AKAMATA ( 沖縄両生爬虫類研究会 )  25   1 - 4   2015年06月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

Phylogeny and Differentiation of Wide-Ranging Ryukyu Kajika Frog Buergeria japonica (Amphibia: Rhacophoridae): Geographic Genetic Pattern Not Simply Explained by Vicariance Through Strait Formation.

Tominaga A, Matsui M, Eto K, Ota H

Zoological science ( Zoological Science )  32 ( 3 ) 240 - 7   2015年06月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

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Predicting the potential distribution of the amphibian pathogen Batrachochytrium dendrobatidis in East and Southeast Asia.

Moriguchi S, Tominaga A, Irwin KJ, Freake MJ, Suzuki K, Goka K

Diseases of aquatic organisms ( Diseases of Aquatic Organisms )  113 ( 3 ) 177 - 85   2015年04月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

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Occurrence and Evolutionary History of Two <i>Cynops pyrrhogaster</i> Lineages on the Izu Peninsula

TOMINAGA ATSUSHI, MATSUI MASAFUMI, KOKURYO YASUHIRO

Current Herpetology ( The Herpetological Society of Japan )  34 ( 1 ) 19 - 27   2015年 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

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We investigated phylogenetic positions of Cynops pyrrhogaster from nine localities in the central and southern parts of the Izu Peninsula using the mitochondrial cyt b gene. We revealed that the central and the southern populations are phylogenetically remote. The central Izu lineage belongs to the CENTRAL clade occurring from Chubu through Kinki to Chugoku districts, whereas the southern Izu populations form a lineage sister to the NORTHERN clade, which is distributed in Tohoku and Kanto districts. Genetic differentiation between the southern Izu lineage and the NORTHERN clade is relatively large with the uncorrected p-distance of 3. 4%, which suggests their divergence at 3. 31 MYA. This estimation indicates their genetic differentiation prior to 1. 0 MYA, when the Izu Peninsula was formed through collision of a paleo-oceanic island with Honshu. These results indicate that the ancestor of the southern Izu lineage diverged from the NORTHERN clade somewhere in northern Honshu and then invaded the Izu Peninsula newly formed by collision and settled there. The central Izu lineage thereafter also invaded the peninsula, confining the range of the preceding southern Izu lineage to its current range.

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Characterization of fifteen microsatellite markers for the Japanese fire-bellied newt, Cynops pyrrhogaster

Tominaga, A., Matsui, M., Yoshikawa, N., Hayano, A., Inoue-Murayama, M.

Conservation Genetics Resources ( Springer )  6   405 - 407   2014年06月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

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Batrachochytrium dendrobatidis prevalence and haplotypes in domestic and imported pet amphibians in Japan

Tamukai, K., Une, Y., Tominaga, A., Suzuki, K., Goka, K.

Diseases of Aquatic Organisms ( Inter-Research )  109   165 - 175   2014年05月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

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Genetic diversity and differentiation of the Ryukyu endemic frog Babina holsti as revealed by mitochondrial DNA

Tominaga, A., Matsui, M., Nakata, K.

Zoological Science ( Zoological Society of Japan )  31 ( 2 ) 64 - 70   2014年02月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

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リュウキュウカジカガエルの卵の発生速度

田場美沙基，竹中践，富永篤

AKAMATA ( 沖縄両生爬虫類研究会 )  24   5 - 8   2013年12月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

沖縄の低学力問題に対応するための中学校理科教員の授業力向上をめざした悉皆研修型科学教師教育

吉田安規良, 杉尾幸司, 柄木良友, 岩切宏友, 照屋俊明, 富永　篤

科学教育研究 ( 日本科学教育学会 )  37 ( 2 ) 168 - 170   2013年06月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

Phylogeny and historical demography of Cynops pyrrhogaster (Amphibia: Urodela): taxonomic relationships and distributional changes associated with climatic oscillations

Tominaga, A., Matsui, M., Yoshikawa, N., Nishikawa, K., Hayashi, T., Misawa, Y., Tanabe, S., Ota, H.

Molecular Phylogenetics and Evolution ( Elsevier )  66   654 - 667   2013年03月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

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Haplotypes of Batrachochytrium dendrobatidis on the hellbender Cryptobranchus alleganiensis are identical to global strains

Tominaga, A., Irwin, K. J., Freake, M. J., Suzuki, K., Goka, K.

Diseases of Aquatic Organisms ( Inter-Research )  102   182 - 186   2013年02月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

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Phylogeny and biogeography of the Anderson’s crocodile newt, Echinotriton andersoni (Amphibia: Caudata), as revealed by mitochondrial DNA sequences

Honda, M., Matsui, M., Tominaga, A., Ota, H., Tanaka, S.

Molecular Phylogenetics and Evolution ( Elsevier )  65   642 - 653   2012年11月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

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Molecular phylogeny and biogeography of caecilians from Southeast Asia (Amphibia, Gymnophiona, Ichthyophiidae), with special reference to high cryptic species diversity in Sundaland

Nishikawa. K., Matsui, M., Yong,H-S., Ahmad, N., Yambun, P., Belabut, D. M., Sudin, A., Hamidy, A., Orlov, N. L., Ota, H., Yoshikawa, N., Tominaga, A., Shimada, T.

Molecular Phylogenetics and Evolution ( Elsevier )  63   714 - 723   2012年06月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

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ウシガエルによるオキナワアオガエルのオス４個体の捕食例

富永篤

AKAMATA ( 沖縄両生爬虫類研究会 )  22   1 - 4   2011年04月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

渡嘉敷島のイボイモリ（両生綱: 有尾目）の分布について

富永篤，本多正尚，太田英利

AKAMATA ( 沖縄両生爬虫類研究会 )  23   12 - 14   2011年04月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

沖縄島におけるシリケンイモリの夏季から秋季産卵の観察例

富永篤，山越悠貴

AKAMATA ( 沖縄両生爬虫類研究会 )  22   9 - 11   2011年04月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

沖縄島および奄美大島産イボイモリ（両生綱：有尾目）の胃内容について

本多正尚，八畑謙介，富永篤，太田英利

AKAMATA ( 沖縄両生爬虫類研究会 )  22   5 - 8   2011年04月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

Treatment of Spontaneous Chytridiomycosis in Captive Amphibians Using Itraconazole

Tamukai, K., Une, Y., Tominaga, A., Suzuki, K., Goka, K.

Journal of Veterinary Medical Science ( The Japenese Society of Veterinary Science )  73 ( 2 ) 155 - 159   2011年02月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

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