{"created":"2023-06-20T16:50:42.804949+00:00","id":23274,"links":{},"metadata":{"_buckets":{"deposit":"c83ae003-eb1a-46aa-9b75-a967c536e976"},"_deposit":{"created_by":3,"id":"23274","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"23274"},"status":"published"},"_oai":{"id":"oai:kindai.repo.nii.ac.jp:00023274","sets":["14:2667:4819"]},"author_link":["43017"],"control_number":"23274","item_8_biblio_info_21":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2021","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"6","bibliographicPageStart":"1","bibliographic_titles":[{"bibliographic_title":"科学研究費助成事業研究成果報告書 (2021)"}]}]},"item_8_description_25":{"attribute_name":"リンクURL","attribute_value_mlt":[{"subitem_description":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19K06229/","subitem_description_type":"Other"}]},"item_8_description_33":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"研究成果の概要（和文）：軟骨魚類の中ではサンプルの確保が比較的容易なアカエイは、子宮内にて胎仔を育む卵胎生型の繁殖様式を持つ。子宮内の胎仔は、母胎由来のエストロゲンに曝された状況で、自らの性を決定/分化させる。しかし胎仔の生殖腺の性分化過程の実態に関しては、全く明らかにされていない。そこで本研究では、発達段階の異なる子宮内のアカエイ胎仔を用いて生殖腺/生殖輸管の性分化過程を組織学的手法により解析した。その結果、鰭が伸長し体盤が形成される直前の発達段階にある胎仔(全長2cm程度)の生殖腺において、生殖細胞の局在に性差が見られ、形態的な性分化過程を明らかにする事ができた。\n研究成果の概要（英文）： The red stingray (Hemitrygon akajei), relatively easy to collect among cartilaginous fishes, have an ovoviviparous reproductive system. In this stingray, the gonadal sex determination and differentiation of the embryo exposed to maternal estrogen have occurred in the uterus. In this study, we investigated the process of gonadal sex differentiation of red stingray embryos. Histological observations revealed that morphological sex difference of the gonads occurs in the embryo, which is about 2cm in total length. These findings help to understand the reproduction of cartilaginous fish.","subitem_description_type":"Abstract"}]},"item_8_description_36":{"attribute_name":"内容記述","attribute_value_mlt":[{"subitem_description":"研究種目：基盤研究(C); 研究期間：2019～2021; 課題番号：19K06229; 研究分野：魚類生殖生理学; 科研費の分化・細目：","subitem_description_type":"Other"}]},"item_8_description_37":{"attribute_name":"資源タイプ(WEKO2)","attribute_value_mlt":[{"subitem_description":"Research Paper","subitem_description_type":"Other"}]},"item_8_description_41":{"attribute_name":"フォーマット","attribute_value_mlt":[{"subitem_description":"application/pdf","subitem_description_type":"Other"}]},"item_8_publisher_14":{"attribute_name":"出版者 名前","attribute_value_mlt":[{"subitem_publisher":"近畿大学"}]},"item_8_text_10":{"attribute_name":"著者 役割","attribute_value_mlt":[{"subitem_text_value":"研究代表者"}]},"item_8_text_7":{"attribute_name":"著者(英)","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Kobayashi, Yasuhisa"}]},"item_8_text_8":{"attribute_name":"著者 所属","attribute_value_mlt":[{"subitem_text_value":"近畿大学農学部; 准教授"}]},"item_8_text_9":{"attribute_name":"著者所属(翻訳)","attribute_value_mlt":[{"subitem_text_value":"Kindai University"}]},"item_8_version_type_12":{"attribute_name":"版","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_be7fb7dd8ff6fe43","subitem_version_type":"NA"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"小林, 靖尚"},{"creatorName":"コバヤシ, ヤスヒサ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{},{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2022-12-05"}],"displaytype":"detail","filename":"19K06229seika.pdf","filesize":[{"value":"3.2 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"19K06229seika.pdf","url":"https://kindai.repo.nii.ac.jp/record/23274/files/19K06229seika.pdf"},"version_id":"ed6b920c-6bf1-461c-b920-90d75a4fdab8"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"アカエイ","subitem_subject_scheme":"Other"},{"subitem_subject":"軟骨魚類","subitem_subject_scheme":"Other"},{"subitem_subject":"性分化","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"research report","resourceuri":"http://purl.org/coar/resource_type/c_18ws"}]},"item_title":"アカエイの生殖腺形成に関する組織生理学的解析から迫る軟骨魚類の子宮内性分化","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"アカエイの生殖腺形成に関する組織生理学的解析から迫る軟骨魚類の子宮内性分化","subitem_title_language":"ja"},{"subitem_title":"Histological observation of gonadal sex differentiation in the cartilaginous fish, the red stingray (Hemitrygon akajei).","subitem_title_language":"en"}]},"item_type_id":"8","owner":"3","path":["4819"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2022-12-05"},"publish_date":"2022-12-05","publish_status":"0","recid":"23274","relation_version_is_last":true,"title":["アカエイの生殖腺形成に関する組織生理学的解析から迫る軟骨魚類の子宮内性分化"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-08-01T07:51:52.667078+00:00"}