{"_buckets": {"deposit": "2bd79c6f-04ad-43a9-8eba-c7e87d2b2561"}, "_deposit": {"id": "11840", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "11840"}, "status": "published"}, "_oai": {"id": "oai:soar-ir.repo.nii.ac.jp:00011840", "sets": ["1170"]}, "author_link": ["36267", "36268", "36269", "36270"], "item_1628147817048": {"attribute_name": "出版タイプ", "attribute_value_mlt": [{"subitem_version_resource": "http://purl.org/coar/version/c_970fb48d4fbd8a85", "subitem_version_type": "VoR"}]}, "item_6_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2009-05", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "3", "bibliographicPageEnd": "196", "bibliographicPageStart": "191", "bibliographicVolumeNumber": "26", "bibliographic_titles": [{"bibliographic_title": "ZOOLOGICAL SCIENCE"}]}]}, "item_6_description_20": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "Depending on fitness consequences, hybridization may rescue inbred populations; generate premating barriers, reproductive interference, or hybrid species; or extinguish a species. However, the fitness of hybrids is unpredictable without direct quantification of their performance in fitness components across multiple generations. The land snails Bradybaena pellucida and B. similaris, which are indigenous and non-indigenous in Japan, respectively, copulate with each other simultaneously and reciprocally. However, only B. pellucida produces hybrids, because it ends mating by removing the penis before transferring a spermatophore, while B. similaris inseminates B. pellucida. To evaluate the strength of an intrinsic postzygotic barrier against the hybrids produced by B. pellucida, we conducted breeding experiments in the laboratory and measured six life-history traits: (1) growth rate, (2) body weight at maturity, (3) number of days to first oviposition after being permitted to mate, (4) clutch size, (5) fecundity, and (6) hatchability. We also calculated the relative intrinsic fitness based on five of these trait values (excluding clutch size). F(1) hybrids exhibited heterosis in growth rate, body weight at maturity and relative intrinsic fitness. F(2) hybrids also showed heterosis in body weight at maturity. Nevertheless, the F(2) hybrids produced significantly fewer progeny than the mid-point value of the parental species. Thus, the F(2) hybrids exhibited weak out-breeding depression in reproduction, offsetting their vigor in body size. These results indicate that only a weak postzygotic barrier, contrasting with strong F(1) heterosis, has evolved during genetic divergence of the two sibling species in allopatry.", "subitem_description_type": "Abstract"}]}, "item_6_description_30": {"attribute_name": "資源タイプ（コンテンツの種類）", "attribute_value_mlt": [{"subitem_description": "Article", "subitem_description_type": "Other"}]}, "item_6_description_5": {"attribute_name": "引用", "attribute_value_mlt": [{"subitem_description": "ZOOLOGICAL SCIENCE. 26(3):191-196 (2009)", "subitem_description_type": "Other"}]}, "item_6_link_3": {"attribute_name": "信州大学研究者総覧へのリンク", "attribute_value_mlt": [{"subitem_link_text": "Asami, Takahiro", "subitem_link_url": "http://soar-rd.shinshu-u.ac.jp/profile/ja.uenpOakh.html"}]}, "item_6_link_67": {"attribute_name": "WoS", "attribute_value_mlt": [{"subitem_link_text": "Web of Science", "subitem_link_url": "http://gateway.isiknowledge.com/gateway/Gateway.cgi?\u0026GWVersion=2\u0026SrcAuth=ShinshuUniv\u0026SrcApp=ShinshuUniv\u0026DestLinkType=FullRecord\u0026DestApp=WOS\u0026KeyUT=000265265700003"}]}, "item_6_publisher_4": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "ZOOLOGICAL SOC JAPAN"}]}, "item_6_relation_47": {"attribute_name": "PubMed", "attribute_value_mlt": [{"subitem_relation_name": [{"subitem_relation_name_text": "19341339"}], "subitem_relation_type_id": {"subitem_relation_type_id_text": "http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?CMD=search\u0026DB=pubmed\u0026term=19341339", "subitem_relation_type_select": "PMID"}}]}, "item_6_relation_48": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_name": [{"subitem_relation_name_text": "10.2108/zsj.26.191"}], "subitem_relation_type_id": {"subitem_relation_type_id_text": "https://doi.org/10.2108/zsj.26.191", "subitem_relation_type_select": "DOI"}}]}, "item_6_rights_62": {"attribute_name": "権利", "attribute_value_mlt": [{"subitem_rights": "Copyright © 2009 Zoological Society of Japan"}]}, "item_6_select_64": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_6_source_id_35": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0289-0003", "subitem_source_identifier_type": "ISSN"}]}, "item_6_source_id_39": {"attribute_name": "NII ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0289-0003", "subitem_source_identifier_type": "ISSN"}]}, "item_6_source_id_40": {"attribute_name": "書誌レコードID", "attribute_value_mlt": [{"subitem_source_identifier": "AA10545874", "subitem_source_identifier_type": "NCID"}]}, "item_6_text_69": {"attribute_name": "wosonly authkey", "attribute_value_mlt": [{"subitem_text_value": "heterosis; outbreeding depression; reproductive isolation; postzygotic isolation; Pulmonata; Gastropoda"}]}, "item_6_text_70": {"attribute_name": "wosonly keywords", "attribute_value_mlt": [{"subitem_text_value": "PULMONATE BRADYBAENA-SIMILARIS; HELIX-ASPERSA MULLER; LAND-SNAIL; MATING-BEHAVIOR; REPRODUCTIVE COMPATIBILITY; PHYSA-ACUTA; DIVERGENCE; POPULATION; SPECIATION; GASTROPODA"}]}, "item_6_textarea_68": {"attribute_name": "wosonly abstract", "attribute_value_mlt": [{"subitem_textarea_value": "Depending on fitness consequences, hybridization may rescue inbred populations; generate premating barriers, reproductive interference, or hybrid species; or extinguish a species. However, the fitness of hybrids is unpredictable without direct quantification of their performance in fitness components across multiple generations. The land snails Bradybaena pellucida and B. similaris, which are indigenous and non-indigenous in Japan, respectively, copulate with each other simultaneously and reciprocally. However, only B. pellucida produces hybrids, because it ends mating by removing the penis before transferring a spermatophore, while B. similaris inseminates B. pellucida. To evaluate the strength of an intrinsic postzygotic barrier against the hybrids produced by B. pellucida, we conducted breeding experiments in the laboratory and measured six life-history traits: (1) growth rate, (2) body weight at maturity, (3) number of days to first oviposition after being permitted to mate, (4) clutch size, (5) fecundity, and (6) hatchability. We also calculated the relative intrinsic fitness based on five of these trait values (excluding clutch size). F(1) hybrids exhibited heterosis in growth rate, body weight at maturity and relative intrinsic fitness. F(2) hybrids also showed heterosis in body weight at maturity. Nevertheless, the F(2) hybrids produced significantly fewer progeny than the mid-point value of the parental species. Thus, the F(2) hybrids exhibited weak out-breeding depression in reproduction, offsetting their vigor in body size. These results indicate that only a weak postzygotic barrier, contrasting with strong F(1) heterosis, has evolved during genetic divergence of the two sibling species in allopatry."}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Wiwegweaw,  Amporn"}], "nameIdentifiers": [{"nameIdentifier": "36267", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Seki,  Keiichi"}], "nameIdentifiers": [{"nameIdentifier": "36268", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Utsuno,  Hiroki"}], "nameIdentifiers": [{"nameIdentifier": "36269", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Asami,  Takahiro"}], "nameIdentifiers": [{"nameIdentifier": "36270", "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": "2015-09-28"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "Fitness_Consequences_Reciprocally_Asymmetric_Hybridization.pdf", "filesize": [{"value": "311.6 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_note", "mimetype": "application/pdf", "size": 311600.0, "url": {"label": "Fitness_Consequences_Reciprocally_Asymmetric_Hybridization.pdf", "url": "https://soar-ir.repo.nii.ac.jp/record/11840/files/Fitness_Consequences_Reciprocally_Asymmetric_Hybridization.pdf"}, "version_id": "419aaa53-ec41-47d8-b8ce-4e60d5a19271"}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "PULMONATE BRADYBAENA-SIMILARIS", "subitem_subject_scheme": "Other"}, {"subitem_subject": "HELIX-ASPERSA MULLER", "subitem_subject_scheme": "Other"}, {"subitem_subject": "LAND-SNAIL", "subitem_subject_scheme": "Other"}, {"subitem_subject": "MATING-BEHAVIOR", "subitem_subject_scheme": "Other"}, {"subitem_subject": "REPRODUCTIVE COMPATIBILITY", "subitem_subject_scheme": "Other"}, {"subitem_subject": "PHYSA-ACUTA", "subitem_subject_scheme": "Other"}, {"subitem_subject": "DIVERGENCE", "subitem_subject_scheme": "Other"}, {"subitem_subject": "POPULATION", "subitem_subject_scheme": "Other"}, {"subitem_subject": "SPECIATION", "subitem_subject_scheme": "Other"}, {"subitem_subject": "GASTROPODA", "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": "journal article", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Fitness Consequences of Reciprocally Asymmetric Hybridization Between Simultaneous Hermaphrodites", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Fitness Consequences of Reciprocally Asymmetric Hybridization Between Simultaneous Hermaphrodites", "subitem_title_language": "en"}]}, "item_type_id": "6", "owner": "1", "path": ["1170"], "permalink_uri": "http://hdl.handle.net/10091/15955", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2012-09-11"}, "publish_date": "2012-09-11", "publish_status": "0", "recid": "11840", "relation": {}, "relation_version_is_last": true, "title": ["Fitness Consequences of Reciprocally Asymmetric Hybridization Between Simultaneous Hermaphrodites"], "weko_shared_id": -1}