六倍体ドジョウの成長低下

• 堀江 晋

  Graduate School of Fisheries Sciences, Hokkaido University

• 谷浦 興

  Kobe City Municipality

• 海野 徹也

  Graduate School of Biosphere Sciences, Hiroshima University

• 中川 平介

  Graduate School of Biosphere Sciences, Hiroshima University

• 荒井 克俊

  Graduate School of Fisheries Sciences, Hokkaido University

書誌事項

タイトル別名

• Retarded Growth of Hexaploid Loaches

抄録

In the lach Misgurnus anguillicaudatus, hexaploid individuals were produced by chromosome manipulation to inhibit the second polar body release after the fertilization of diploid eggs from natural tetraploid female by sperm from tetraploid male. Eggs of mature hexaploid (6n) female were fertilized by sperm of diploid (2n), tetraploid (4n) and hexaploid (6n) males, respectively, to produce tetraploid (6n female×2n male), pentaploid (6n×4n) and hexaploid (6n×6n) progeny. Each group was reared in a separate tank until the age of 1 year old and then long-term communal rearing experiments from the age of 1 year old to 3 years and 2 months old were carried out to compare performance of tetraploid, pentaploid and hexaploid loaches under a laboratory condition. At the end of experiments, significantly retarded growth was observed in hexaploid loaches and they exhibited about half body weight of counterpart tetraploid and pentaploid loaches. Hexaploid loaches also showed significantly lower body length/head length proportion than other polyploids.

収録刊行物

• 水産増殖

  水産増殖 52 (3), 279-286, 2004

  日本水産増殖学会

キーワード

• Hexaploid
• Polyploid
• Loach
• Growth

詳細情報

• CRID: 1390001204717157504
• NII論文ID: 10013653795
• NII書誌ID: AN00124667
• DOI: 10.11233/aquaculturesci1953.52.279
• ISSN: 21850194
• ISSN: 03714217
• HANDLE: 2115/35211
• NDL書誌ID: 7115833
• Web Site: https://agriknowledge.affrc.go.jp/RN/2010701527
• Web Site: http://id.ndl.go.jp/bib/7115833
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7115833
• 本文言語コード: en
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可