{"created":"2021-03-01T06:43:20.852342+00:00","id":25392,"links":{},"metadata":{"_buckets":{"deposit":"8f137e49-46d9-4912-b386-a841a7fcce3c"},"_deposit":{"id":"25392","owners":[],"pid":{"revision_id":0,"type":"depid","value":"25392"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00025392","sets":["27:2466:2467:2543","9:504:2469:2544"]},"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"秩父地域におけるヒノキ林のアイソザイム変異"}]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1998","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"9","bibliographicPageStart":"1","bibliographicVolumeNumber":"99","bibliographic_titles":[{"bibliographic_title":"東京大学農学部演習林報告"}]}]},"item_4_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"ヒノキ林遺伝子組成と遺伝構造解明するために，秩父地域の5か所の天然林（トウバク沢I，トウバク沢II，豆焼沢，ヒダナ沢I，ヒダナ沢II）と5か所の人工林（小鹿野，吉田，浦山，トウバク沢，要倉沢）を調査した。分析は8酵素種10遺伝子座のアイソザイム遺伝子について，平板ポリアクリルアミドゲル垂直電気泳動法を行った。その結果，天然林では全遺伝変異の95.4％が集団内に存在しており，集団間の遺伝的隔りは小さかった。その中で，豆焼沢集団は他の四集団と多少異なる遺伝子組成を有し，隔離された小集団の遺伝的特徴を示したことから，ヒノキ天然林の遺伝的多様性を保持する上で重要な遺伝子プールであると考えられた。また，5か所の人工林では林分間の遺伝変異は認められず，また林分内の遺伝的多様性（平均ヘテロ性接合体率の期待値）は天然林の集団内とほとんど違わなかった。またこれらの人工林には天然林と余り変わらない遺伝的多様性が保有されていることが示唆された。さらに，人工林の遺伝的構成は天然林と異なり，ヘテロ接合体過剰であることが示された。これは，人工林造成過程において何らかの選抜などにより，自殖に起因するホモ個体が消滅してきたことによるものと推察される。","subitem_description_type":"Abstract"},{"subitem_description":"The genetic diversity and structure of hinoki were investigated in natural forests and plantations in Chichibu district by using 10 allozyme loci in 8 enzyme systems as marker genes. The analysis of gene composition and genetic structure, both intrastand and interstand, showed that in natural forests, 95.4% of the total genetic variation was maintained intrastand. It is shown that Chichibu natural forests possess great genetic variability. The analysis of estimated average heterozygosities revealed that plantations possess as large an intrastand genetic diversity as natural forests. But only 1.7% of genetic variation (GST) was attributable to genetic differences interstand, much less than the 4.6% in natural forests. Notably, plantations possessed less genetic variation interstand than the natural forests. The estimated average multilocus heterozygote deficit (FIS) reached -0.091, which deviated significantly from the expected value under panmixia that was fitted in natural forests. This reconfirmed that some procedures during afforestation gave rise to a reduction of homozygotes and resulted in an excess of heterozygotes.","subitem_description_type":"Abstract"}]},"item_4_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"54446","nameIdentifierScheme":"WEKO"}],"names":[{"name":"湯, 定欽"}]},{"nameIdentifiers":[{"nameIdentifier":"54447","nameIdentifierScheme":"WEKO"}],"names":[{"name":"沈, 海龍"}]},{"nameIdentifiers":[{"nameIdentifier":"54448","nameIdentifierScheme":"WEKO"}],"names":[{"name":"井出, 雄二"}]}]},"item_4_publisher_20":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東京大学大学院農学生命科学研究科附属演習林"}]},"item_4_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00162451","subitem_source_identifier_type":"NCID"}]},"item_4_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"03716007","subitem_source_identifier_type":"ISSN"}]},"item_4_subject_15":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"610","subitem_subject_scheme":"NDC"}]},"item_4_text_21":{"attribute_name":"出版者別名","attribute_value_mlt":[{"subitem_text_value":"The Tokyo University Forests"}]},"item_4_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学大学院農学生命科学研究科"},{"subitem_text_value":"中国東北林業大学"},{"subitem_text_value":"東京大学農学部附属演習林千葉演習林"},{"subitem_text_value":"Graduate School of Agriculture and Life Sciences, The University of Tokyo"},{"subitem_text_value":"Northeast Forestry University, China"},{"subitem_text_value":"University Forest in Chiba, Faculty of Agriculture, The University of Tokyo"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"TANG, Ding-Qin"}],"nameIdentifiers":[{"nameIdentifier":"54443","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"SHEN, Hailong"}],"nameIdentifiers":[{"nameIdentifier":"54444","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"IDE, Yuji"}],"nameIdentifiers":[{"nameIdentifier":"54445","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-06-09"}],"displaytype":"detail","filename":"esrh099001.pdf","filesize":[{"value":"724.1 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"esrh099001.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/25392/files/esrh099001.pdf"},"version_id":"66e72cd4-2821-460e-a582-07f6227f4686"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"アイソザイム","subitem_subject_scheme":"Other"},{"subitem_subject":"ヒノキ（Chamaecyparis obtusa）","subitem_subject_scheme":"Other"},{"subitem_subject":"遺伝的多様性","subitem_subject_scheme":"Other"},{"subitem_subject":"遺伝構造","subitem_subject_scheme":"Other"},{"subitem_subject":"Allozyme","subitem_subject_scheme":"Other"},{"subitem_subject":"Chamaecyparis obtusa","subitem_subject_scheme":"Other"},{"subitem_subject":"Genetic diversity","subitem_subject_scheme":"Other"},{"subitem_subject":"Genetic structure","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"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":"Genetic Diversity and Structure of Hinoki (Chamaecyparis obtusa) in Chichibu District","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Genetic Diversity and Structure of Hinoki (Chamaecyparis obtusa) in Chichibu District"}]},"item_type_id":"4","owner":"1","path":["2544","2543"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-09-03"},"publish_date":"2014-09-03","publish_status":"0","recid":"25392","relation_version_is_last":true,"title":["Genetic Diversity and Structure of Hinoki (Chamaecyparis obtusa) in Chichibu District"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-19T04:03:40.040046+00:00"}