{"created":"2024-10-03T01:27:28.621533+00:00","id":2010923,"links":{},"metadata":{"_buckets":{"deposit":"fbdadfe4-cb4b-4ccb-944f-8e1cfdf5315f"},"_deposit":{"created_by":10,"id":"2010923","owners":[10],"pid":{"revision_id":0,"type":"depid","value":"2010923"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02010923","sets":["1:8:1724310831613"]},"author_link":["1088","1089"],"item_10002_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2015-03","bibliographicIssueDateType":"Issued"},"bibliographicNumberOfPages":"27","bibliographicPageEnd":"47","bibliographicPageStart":"21","bibliographicVolumeNumber":"39","bibliographic_titles":[{"bibliographic_title":"水産総合研究センター研究報告","bibliographic_titleLang":"ja"},{"bibliographic_title":"Bulletin of  Fisheries Research Agency","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"We examined the genetic structure of Japanese chum salmon populations using 20 allozyme markers. A total of 2,447 individuals from 35 populations of Hokkaido and northern Honshu was used to estimate mean allelic richness, observed (HO) and expected (HE) heterozygosities, a neighbor-joining (N-J) phylogeny, average pairwise FST values, and to conduct analysis of molecular variance (AMOVA). Some of these parameters were compared with the average number of alleles (A), mean effective number of alleles (Ae), and HE calculated based on allelic frequency data from microsatellite DNA marker analysis of Japanese chum salmon. In our allozyme study, HO and HE values of chum salmon populations in Honshu (HO, 0.200; HE, 0.199) were larger than those of Hokkaido (HO, 0.186; HE, 0.190). In contrast, the A, Ae, and HE values calculated with the reported microsatellite data were larger in the populations of Hokkaido (A, 27.5; Ae, 15.7; HE, 0.917) than those of Honshu (A, 24.2; Ae, 14.2; HE, 0.908). Both the N-J tree and AMOVA analysis with the allozyme data suggested seven regional groups, five in Hokkaido and two in Honshu. Furthermore, FST estimates demonstrated genetic differentiation between Hokkaido and Honshu regions (0.014-0.034). Similar genetic population structure was suggested by the N-J tree and FST estimates with the microsatellite data. The historical genetic characteristics or the remnants of past population structure in Japanese chum salmon remain intact, despite the hatchery program operating more than 120 years.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"日本系サケ（Oncorhynchus keta）個体群の遺伝構造を明らかにするために，アロザイム20遺伝子座を用いて日本系サケ35河川個体群（2,447個体）を分析した。各個体群のアレリックリッチネスおよびへテロ接合度の観察値と期待値の平均をそれぞれ計算し，その遺伝的変異性を調べるとともに，近隣結合法による系統樹の作成，分子分散分析による地理的階層性の推定，pairwise FSTによる遺伝的分化の推定等を行った。また過去に行われた日本系サケのマイクロサテライト分析で示された遺伝子頻度データを使用し，各個体群でのアリル数の平均，有効対立遺伝子数の平均，およびへテロ接合度の期待値の平均をそれぞれ求めるとともに，日本系サケのマイクロサテライト分析の既存データである系統樹およびpairwise FSTを引用して，アロザイム分析の結果と比較した。その結果，日本系サケの遺伝的変異性は，アロザイム分析では本州地域で高い値を示したが，マイクロサテライト分析では北海道地域の方が高い値を示した。一方，アロザイム分析のデータから，日本系サケの遺伝的個体群構造は北海道５地域（オホーツク，北海道日本海，根室，えりも以東，えりも以西），本州２地域（本州太平洋，本州日本海）の 7 地域個体群に分かれること，これらの地域個体群間では遺伝的分化が生じており，特に北海道地域と本州地域で大きいことなどが明らかとなり，マイクロサテライト分析による結果と一致した。以上のことより，日本系サケ個体群では過去120年以上にわたりふ化放流事業をおこなっているものの，その基本的な遺伝的枠組みは維持されているものと推察された。","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"水産総合研究センター","subitem_publisher_language":"ja"}]},"item_10002_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"fra_k_39_21","subitem_relation_type_select":"Local"}}]},"item_10002_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"日本農学文献記事索引（AgriKnowledge）"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://agriknowledge.affrc.go.jp/RN/2010892090","subitem_relation_type_select":"URI"}}]},"item_10002_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11589591","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1346-9894","subitem_source_identifier_type":"PISSN"}]},"item_10002_version_type_20":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNameIdentifiers":[],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Sato, Shunpei","creatorNameLang":"en"},{"creatorName":"佐藤, 俊平","creatorNameLang":"ja"},{"creatorName":"サトウ, シュンペイ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"Sato","familyNameLang":"en"},{"familyName":"佐藤","familyNameLang":"ja"},{"familyName":"サトウ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Shunpei","givenNameLang":"en"},{"givenName":"俊平","givenNameLang":"ja"},{"givenName":"シュンペイ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"1089","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"70425461","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=70425461"}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Urawa, Shigehiko","creatorNameLang":"en"},{"creatorName":"浦和, 茂彦","creatorNameLang":"ja"},{"creatorName":"ウラワ, シゲヒコ","creatorNameLang":"ja-Kana"}],"familyNames":[{"familyName":"Urawa","familyNameLang":"en"},{"familyName":"浦和","familyNameLang":"ja"},{"familyName":"ウラワ","familyNameLang":"ja-Kana"}],"givenNames":[{"givenName":"Shigehiko","givenNameLang":"en"},{"givenName":"茂彦","givenNameLang":"ja"},{"givenName":"シゲヒコ","givenNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"1088","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"60425460","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=60425460"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2024-10-02"}],"filename":"fra_k_39_21.pdf","filesize":[{"value":"1.5 MB"}],"format":"application/pdf","licensetype":"license_0","mimetype":"application/pdf","url":{"url":"https://fra.repo.nii.ac.jp/record/2010923/files/fra_k_39_21.pdf"},"version_id":"269665ae-f3b1-4d80-9a51-bd2b77b3f22c"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"chum salmon; genetic structure; genetic differentiation; allozyme; previous microsatellite data","subitem_subject_language":"en","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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"日本系サケの遺伝的個体群構造","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"日本系サケの遺伝的個体群構造","subitem_title_language":"ja"},{"subitem_title":"Genetic structure of chum salmon populations in Japan","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"10","path":["1724310831613"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-10-02"},"publish_date":"2024-10-02","publish_status":"0","recid":"2010923","relation_version_is_last":true,"title":["日本系サケの遺伝的個体群構造"],"weko_creator_id":"10","weko_shared_id":-1},"updated":"2025-03-31T01:11:10.345043+00:00"}