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トラフグ生殖腺の性分化過程と性比
https://fra.repo.nii.ac.jp/records/2003196
https://fra.repo.nii.ac.jp/records/20031961bbdce0c-f5f0-439f-b5d1-30cc197446d5
| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2024-04-25 | |||||
| タイトル | ||||||
| タイトル | トラフグ生殖腺の性分化過程と性比 | |||||
| 言語 | ja | |||||
| タイトル | ||||||
| タイトル | Gonadal Development, Sexual Differentiation and Sex Ratio of Tiger Puffer, Takifugu rubripes | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | tiger puffer; gonadal development; sexual differentiation; sex ratio | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | departmental bulletin paper | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
鈴木, 伸洋
× 鈴木, 伸洋× 岡田, 一宏× 神谷, 直明 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The differentiation of gonads into ovaries and testes in juvenile tiger puffer. Takifugu rubripes was investigated histologically. Paired primodial gonads were found on the dorsal peritoneal wall beneath the mesonephric ducts of a 2 day old, 3.49 mm in total length (TL). In almost all specimens at 20 days old range 7.21- 9.18 mm TL, the gonads had a small number of germ cells buried within numerous somatic cells. These germ cells began to develop at 40 days old range 18.92-20.67 mm TL when the gonads migrated to the anterior part of abdominal cavity. Sex differentiation of gonads occurred at 50 days old range 22.02-29.05 mm TL. At this stage, the gonads of ovarian nature characterized by prominent clusters of interstital tissue was confirmed. In specimens at 80 days old range 58.26-77.33 mm TL, metamorphosis to a demersal juvenile stage occurred and in the ovarian lamella-like structure with clusters of oogonia clear differentiation into the meiotic stage occurred within the ovary. Inside the testis stromal cells began to diffuse to form interstital tissue surrounding future seminal lobule anlage. The beginning of meiosis in the testes did not occur until 102 days after hatching. Gonadal sex ratio was investigated histologically using fish cultured in the laboratory and specimens caught from coastal waters of the Seto Inland Sea. No histological features of intersexuality were detected and the sex ratio was 1:1. The period of sexual differentiation of gonads corresponded to the change from a pelagic larval to a fully demersal stage in this species. | |||||
| 言語 | en | |||||
| bibliographic_information |
ja : 南西海区水産研究所研究報告 en : Bulletin of Nansei National Fisheries Research Instituite 巻 29, p. 39-48, ページ数 10, 発行日 1996-03 |
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| 出版者 | ||||||
| 出版者 | 南西海区水産研究所 | |||||
| 言語 | ja | |||||
| 出版者 | ||||||
| 出版者 | Nansei National Fisheries Research Instituite | |||||
| 言語 | en | |||||
| item_10002_source_id_9 | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 0388-841X | |||||
| item_10002_source_id_11 | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN00181988 | |||||
| 情報源 | ||||||
| 識別子タイプ | Local | |||||
| 関連識別子 | nnf_k_29_39 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://agriknowledge.affrc.go.jp/RN/2010541831 | |||||
| 言語 | ja | |||||
| 関連名称 | 日本農学文献記事索引(agriknowledge) | |||||
