間隙性貝形虫類(甲殻類)における性選択と進化(2009年度日本動物分類学会シンポジウム)

• 田中 隼人

  静岡大学創造科学技術大学院

書誌事項

タイトル別名

• Sexual selection and evolution of interstitial Ostracoda (Crustacea)(PROCEEDINGS, JSSZ SYMPOSIUM, 2009)
• 間隙性貝形虫類(甲殻類)における性選択と進化
• カンゲキセイ カイケイチュウルイ コウカクルイ ニ オケル セイ センタク ト シンカ

抄録

Reproductive isolation and evolution of copulatory organ in eleven interstitial species of the genus Parapolycope (Ostracoda, Myodocopida) were discussed. The shapes of male ejaculatory duct are divided into the three types i.e., a helical tube type (Type H), a curved short tube type (Type S), and tapering long tube type (Type L). And the correlation between the shapes of copulatory organs in both sexes is recognized as, what we call, the "lock and key". After copulation, the female genital openings of Parapolycope sp. 2 are often blocked by a rod-shape structure. The rod-shaped structure is thought as a part of the male copulatory duct. The phylogenetic relationships of several Parapolycope species were estimated by the mitochondrial COT gene sequences. According to this, the extremely long type of copulatory duct must have evolved gradually from the short curved tube type. As a hypothesis to explain the development of the extremely long type of ejaculatory duct, the concept of an "evolutionary arms race" would be applicable.

収録刊行物

• タクサ：日本動物分類学会誌

  タクサ：日本動物分類学会誌 28 (0), 17-22, 2010

  日本動物分類学会

キーワード

• Ostracoda
• interstitial environment
• sexual selection
• copulatory organ
• lock and key
• mating plug
• evolutionary arms race

詳細情報

• CRID: 1390001204714229632
• NII論文ID: 110008511463
• NII書誌ID: AN1056362X
• DOI: 10.19004/taxa.28.0_17
• ISSN: 21897298
• ISSN: 13422367
• NDL書誌ID: 10584357
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10584357
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可