Explosive speciation and preservation of ancestral taxa in the interstitial Ostracoda (Crustacea)

间质介形类（甲壳类）祖先类群的爆炸性形成和保存

• 批准号: 19370034
• 负责人: TSUKAGOSHI Akira
• 金额: $ 11.48万
• 依托单位: Shizuoka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19370034/
• 关键词: 種分化; 間隙生成物; 間隙生物; 生物多様性; 貝形虫類; 甲殻類; 間隙性生物; 進化; 分類学的多様性; 分子系統; 種多様性; 生物地理

More than 80 species of interstitial Ostracoda were recognized from the intertidal zone of Japan, including 10 species that were described as new. The analysis of DNA suggested that interstitial ostracods were derived in parallel from multiple surface dwelling taxa that are phylogenetically apart from one another, and that some evolutionary trends are recognizable for the adaptation to interstitial environments. Most interstitial ostracods are much smaller than surface dwelling ones, and this is achieved by reducing the growth ratio between molts.

在日本潮间带发现的介形类有80余种，其中10种为新种。DNA的分析表明，介形类是平行来自多个表面居住的类群，这些类群在遗传学上彼此分离，并且一些进化趋势是可识别的，以适应间隙环境。大多数间质介形虫比表面栖息的介形虫小得多，这是通过降低蜕皮之间的生长比率来实现的。

项目成果

Taxonomy and ecology of two new interstitial Ostracoda (Podocopida : Cytheroidea) from Shimoda, central Japan.

日本中部下田的两种新间质介形类（Podocopida：Cytheroidea）的分类学和生态学。

• 发表时间: 2008
• 期刊: Species Diversity 13
• 作者: Watanabe;S.;Tsukagoshi A.;Higashi;R.
• 通讯作者: R.

Segmental Structures Recognized in Male Copulatory Organs of Cytheroid Ostracoda

细胞介形类雄性交配器官的节段结构

• 发表时间: 2009
• 作者: Nakao;Y.;Tsukagoshi;A.
• 通讯作者: A.

Reproductive isolation in species of the interstitial genus Parapolycope (Myodocopa : Cladocopina)

间质副多科属物种的生殖隔离（Myodocopa：Cladocopina）

• 发表时间: 2009
• 作者: Tanaka;H.;Tsukagoshi;A.
• 通讯作者: A.

Brackish-water ostracodes as environmental indicators from the Obitsu River Estuary, central Japan-with a discussion on the population dynamics of Angulictyherura miii-

日本中部带津河口的咸水介形类作为环境指标——并讨论了 Angulictyherura miii 的种群动态——

• 发表时间: 2009
• 作者: Nakao;Y.;Tsukagoshi;A.
• 通讯作者: A.

日本産淡水生貝形虫類の間隙環境への適応の可能性

日本淡水介形类适应孔隙环境的可能性

• 发表时间: 2009
• 作者: 田中利明;喜多村直実;須田隼人・塚越哲
• 通讯作者: 須田隼人・塚越哲