Zur Evolution der Larvenformen der Bivalvia (Mollusca): Ein high-tech-mikromorphologischer Vergleich

双壳纲（软体动物）幼虫形态的进化：高科技微形态比较

• 批准号: 34384108
• 负责人: Professor Dr. Gerhard Haszprunar
• 金额: --
• 依托单位: Zoologische Staatssammlung München
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/34384108?language=en
• 关键词: Zur; Evolution; der; Larvenformen; Bivalvia

The comparative-ontogenetic data on various molluscan groups, which have been generated by application of a broad methodology within the foregoing projects, should be widened concerning the protobranch Bivalvia. The remaining main topic is the clarification of the status of the pericalymma larva of the Protobranchia. Representatives of the respective taxa (mainly Nuculidae) will be collected alive and their larva will be bred. The various stages will be investigated by several high-tech morphological (light- and electron microscopy, computer-aided 3D-reconstruction, fluorescence labeling) methods. Objectives are: (1) Show the myo- und (2) in parts also neurogenesis of the different larval types by fluorescent dyes coupled with Confocal-Laser- Scanning-Microscopy (CLSM). Provide SEM/TEM-data on the (3) prototroch and on larval (4) sensory and (5) excretory organs and compare them with homologous structures in other molluscan classes. (6) Summarize the data to provide an evolutionary phylogeny (evo-devo) of Bivalvia and beyond. The main objectives have direct consequences for the bivalvian phylogeny and for a new framework about the origin and evolutionary history of the phylum Mollusca.

应在前述项目中应用广泛的方法生成的各种软体动物基团的比较基因遗传学数据。其余的主要主题是阐明Protobranchia的cerical虫幼虫的状态。各个分类单元的代表（主要是Nuculidae）将被活跃地收集，并将繁殖其幼虫。各个阶段将通过几种高科技形态学（光和电子显微镜，计算机辅助3D重建，荧光标记）方法进行研究。目的是：（1）通过荧光染料与共聚焦 - 激光扫描 - 显微镜（CLSM）相结合的荧光染料（CLSM），在各个部分中显示了不同幼虫类型的神经发生。在（3）原始和幼虫（4）感觉和（5）排泄器官上提供SEM/TEM-DATA，并将其与其他软体动物类别的同源结构进行比较。 （6）总结数据以提供Bivalvia及以后的进化系统发育（EVO-DEVO）。主要目标对Bivalvian的系统发育有直接的后果，以及关于门lus虫的起源和进化历史的新框架。