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“下异鳃腹足类（软体动物：腹足纲）谱系”的代表性成员中收集DNA序列数据。 这些分子数据将与数据相结合，一些以前收集的，从形态学研究，涉及内部解剖，扫描电子显微镜（SEM）显示的超微结构特征，和组织学信息，以及外部和外壳的特点。 这些生物体包括几个“原始”群体，它们之间的关系仍然没有得到解决。 阐明它们之间的关系也将有助于阐明蛞蝓和陆生蜗牛的起源。 揭示的关系将有助于理解这些动物的化石记录。 这项研究将有助于我们了解一个惊人的无脊椎动物门的生物多样性。 许多成员是海洋生物，但其他人已经过渡到陆地和淡水生活。 总的来说，腹足类或蜗牛，蛞蝓及其亲属对人类生活非常重要，因为有些是重要的食物来源，而另一些则是人类和家畜的寄生虫。