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  1. 040 理学部
  2. 0401 学術論文

Fitness Consequences of Reciprocally Asymmetric Hybridization Between Simultaneous Hermaphrodites

http://hdl.handle.net/10091/15955
090ffc1e-ec41-4430-b1e3-c051791250e4
名前 / ファイル ライセンス アクション
Fitness_Consequences_Reciprocally_Asymmetric_Hybridization.pdf Fitness_Consequences_Reciprocally_Asymmetric_Hybridization.pdf (311.6 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2012-09-11
タイトル
言語 en
タイトル Fitness Consequences of Reciprocally Asymmetric Hybridization Between Simultaneous Hermaphrodites
言語
言語 eng
キーワード
主題Scheme Other
主題 PULMONATE BRADYBAENA-SIMILARIS
キーワード
主題Scheme Other
主題 HELIX-ASPERSA MULLER
キーワード
主題Scheme Other
主題 LAND-SNAIL
キーワード
主題Scheme Other
主題 MATING-BEHAVIOR
キーワード
主題Scheme Other
主題 REPRODUCTIVE COMPATIBILITY
キーワード
主題Scheme Other
主題 PHYSA-ACUTA
キーワード
主題Scheme Other
主題 DIVERGENCE
キーワード
主題Scheme Other
主題 POPULATION
キーワード
主題Scheme Other
主題 SPECIATION
キーワード
主題Scheme Other
主題 GASTROPODA
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
著者 Wiwegweaw, Amporn

× Wiwegweaw, Amporn

WEKO 36267

Wiwegweaw, Amporn

Search repository
Seki, Keiichi

× Seki, Keiichi

WEKO 36268

Seki, Keiichi

Search repository
Utsuno, Hiroki

× Utsuno, Hiroki

WEKO 36269

Utsuno, Hiroki

Search repository
Asami, Takahiro

× Asami, Takahiro

WEKO 36270

Asami, Takahiro

Search repository
信州大学研究者総覧へのリンク
氏名 Asami, Takahiro
URL http://soar-rd.shinshu-u.ac.jp/profile/ja.uenpOakh.html
出版者
出版者 ZOOLOGICAL SOC JAPAN
引用
内容記述タイプ Other
内容記述 ZOOLOGICAL SCIENCE. 26(3):191-196 (2009)
書誌情報 ZOOLOGICAL SCIENCE

巻 26, 号 3, p. 191-196, 発行日 2009-05
抄録
内容記述タイプ Abstract
内容記述 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.
資源タイプ(コンテンツの種類)
内容記述タイプ Other
内容記述 Article
ISSN
収録物識別子タイプ ISSN
収録物識別子 0289-0003
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA10545874
PubMed
関連識別子
識別子タイプ PMID
関連識別子 http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?CMD=search&DB=pubmed&term=19341339
関連名称
関連名称 19341339
DOI
関連識別子
識別子タイプ DOI
関連識別子 https://doi.org/10.2108/zsj.26.191
関連名称
関連名称 10.2108/zsj.26.191
権利
権利情報 Copyright © 2009 Zoological Society of Japan
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
WoS
表示名 Web of Science
URL http://gateway.isiknowledge.com/gateway/Gateway.cgi?&GWVersion=2&SrcAuth=ShinshuUniv&SrcApp=ShinshuUniv&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000265265700003
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