Relationships Between the Main Clades of Gastropoda: A Combined Morphological and Molecular Analysis of "Lower Heterobranchs" (Mollusca)

腹足纲主要进化枝之间的关系：“低等异分支”（软体动物）的形态学和分子联合分析

• 批准号: 9509324
• 负责人: Rudiger Bieler
• 金额: $ 20万
• 依托单位: Field Museum of Natural History
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-01-15 至 1999-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9509324&HistoricalAwards=false
• 关键词: Relationships; Between; Main; Clades; Gastropoda

9509324 BIELER This award will support collection of DNA sequence data from representative members of "lower heterobranch gastropod (Mollusca: Gastropoda) lineages. These molecular data will be combined with data, some previously collected, from morphological studies involving internal anatomy, ultrastructural features revealed by scanning electron microscopy (SEM), and histological information, as well as external and shell characteristics. These organisms include several "primitive" groups for which the relationships remain unresolved. Elucidation of their relationships will also shed light on the origins of slugs and land snails. The relationships revealed will be of use in trying to understand the fossil record of these animals. This study will contribute to our knowledge of the biodiversity of an amazing phylum of invertebrate animals. Many of the members are marine, but others have made transitions to life on land and in fresh water. Collectively, gastropods or snails, slugs and their relatives are of much importance to human life, as some are an important food source and others harbor parasites of both humans and domestic animals.

9509324 BIELER 该奖项将支持从“低等异分支腹足动物（软体动物：腹足纲）谱系”的代表成员中收集 DNA 序列数据。这些分子数据将与之前收集的一些数据相结合，这些数据来自涉及内部解剖学、超微结构特征的形态学研究，揭示了扫描电子显微镜（SEM）和组织学信息，以及外部和外壳特征这些生物体包括几个尚未解决关系的“原始”群体。阐明它们的关系也将有助于了解蛞蝓和陆地蜗牛的起源。这项研究将有助于我们了解这些动物的化石记录。许多成员是海洋动物，但其他动物已经过渡到陆地和淡水生活，腹足动物或蜗牛、蛞蝓及其近亲对人类非常重要。生命，因为有些是重要的食物来源，而另一些则含有人类和家畜的寄生虫。