{"_buckets": {"deposit": "83c4e260-784e-4c45-a627-661f5c85622b"}, "_deposit": {"created_by": 21, "id": "4699", "owners": [21], "pid": {"revision_id": 0, "type": "depid", "value": "4699"}, "status": "published"}, "_oai": {"id": "oai:ir.soken.ac.jp:00004699", "sets": ["345", "283"]}, "author_link": ["3119", "3031", "1638", "3118", "346"], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2011", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "8", "bibliographicPageStart": "e1002203", "bibliographicVolumeNumber": "7", "bibliographic_titles": [{"bibliographic_title": "PLoS Genetics"}, {"bibliographic_title": "PLoS Genetics", "bibliographic_titleLang": "en"}]}]}, "item_10001_creator_3": {"attribute_name": "著者別名", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "寺井, 洋平"}], "nameIdentifiers": [{"nameIdentifier": "3031", "nameIdentifierScheme": "WEKO"}, {"nameIdentifier": "1000030432016", "nameIdentifierScheme": "NRID", "nameIdentifierURI": " "}, {"nameIdentifier": "30432016 ", "nameIdentifierScheme": "e-Rad", "nameIdentifierURI": "https://kaken.nii.ac.jp/ja/search/?qm=30432016 "}]}]}, "item_10001_description_19": {"attribute_name": "フォーマット", "attribute_value_mlt": [{"subitem_description": "application/pdf", "subitem_description_type": "Other"}]}, "item_10001_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "The endemic cichlid fishes in Lake Victoria are a model system for speciation through adaptive radiation. Although the evolution of the sex-determination system may also play a role in speciation, little is known about the sex-determination system of Lake Victoria cichlids. To understand the evolution of the sex-determination system in these fish, we performed cytogenetic analysis in 11 cichlid species from Lake Victoria. B chromosomes, which are present in addition to standard chromosomes, were found at a high prevalence rate (85%) in these cichlids. In one species, B chromosomes were female-specific. Cross-breeding using females with and without the B chromosomes demonstrated that the presence of the B chromosomes leads to a female-biased sex ratio in this species. Although B chromosomes were believed to be selfish genetic elements with little effect on phenotype and to lack protein-coding genes, the present study provides evidence that B chromosomes have a functional effect on female sex determination. FISH analysis using a BAC clone containing B chromosome DNA suggested that the B chromosomes are derived from sex chromosomes. Determination of the nucleotide sequences of this clone (104.5 kb) revealed the presence of several protein-coding genes in the B chromosome, suggesting that B chromosomes have the potential to contain functional genes. Because some sex chromosomes in amphibians and arthropods are thought to be derived from B chromosomes, the B chromosomes in Lake Victoria cichlids may represent an evolutionary transition toward the generation of sex chromosomes.", "subitem_description_type": "Abstract"}]}, "item_10001_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "Public Library of Science"}]}, "item_10001_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_name": [{"subitem_relation_name_text": "10.1371/journal.pgen.1002203"}], "subitem_relation_type": "isIdenticalTo", "subitem_relation_type_id": {"subitem_relation_type_id_text": "https://doi.org/10.1371/journal.pgen.1002203 ", "subitem_relation_type_select": "DOI"}}]}, "item_10001_relation_17": {"attribute_name": "関連サイト", "attribute_value_mlt": [{"subitem_relation_name": [{"subitem_relation_name_text": "Copyright"}], "subitem_relation_type_id": {"subitem_relation_type_id_text": "http://www.plos.org/open-access/", "subitem_relation_type_select": "URI"}}]}, "item_10001_rights_15": {"attribute_name": "権利", "attribute_value_mlt": [{"subitem_rights": "© 2011 Yoshida et al."}]}, "item_10001_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "1553-7390", "subitem_source_identifier_type": "ISSN"}]}, "item_10001_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_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "YOSHIDA, Kohta "}], "nameIdentifiers": [{"nameIdentifier": "3118", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "TERAI, Yohey"}], "nameIdentifiers": [{"nameIdentifier": "1638", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "WATANABE, Masakatsu"}], "nameIdentifiers": [{"nameIdentifier": "346", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "et, al."}], "nameIdentifiers": [{"nameIdentifier": "3119", "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": "2014-06-25"}], "displaytype": "simple", "download_preview_message": "", "file_order": 0, "filename": "fetchObject1.pdf", "filesize": [{"value": "1.9 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_11", "mimetype": "application/pdf", "size": 1900000.0, "url": {"label": "fetchObject1", "url": "https://ir.soken.ac.jp/record/4699/files/fetchObject1.pdf"}, "version_id": "79d1ce03-7f7a-4098-b648-fde70e2e03e1"}]}, "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": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "B Chromosomes Have a Functional Effect on Female Sex Determination in Lake Victoria Cichlid Fishes", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "B Chromosomes Have a Functional Effect on Female Sex Determination in Lake Victoria Cichlid Fishes"}, {"subitem_title": "B Chromosomes Have a Functional Effect on Female Sex Determination in Lake Victoria Cichlid Fishes", "subitem_title_language": "en"}]}, "item_type_id": "10001", "owner": "21", "path": ["109", "283", "344", "345"], "permalink_uri": "https://ir.soken.ac.jp/records/4699", "pubdate": {"attribute_name": "公開日", "attribute_value": "2014-06-25"}, "publish_date": "2014-06-25", "publish_status": "0", "recid": "4699", "relation": {}, "relation_version_is_last": true, "title": ["B Chromosomes Have a Functional Effect on Female Sex Determination in Lake Victoria Cichlid Fishes"], "weko_shared_id": 21}