REU: Radular Variability in the Herbivorous Gastropods Lacuna

REU：草食性腹足动物的径向变异性缺陷

• 批准号: 9009070
• 负责人: Dianna Padilla
• 金额: $ 2.2万
• 依托单位: University of Wisconsin-Madison
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-08-01 至 1992-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9009070&HistoricalAwards=false
• 关键词: REU; Radular; Variability; Herbivorous; Gastropods

The genus Lacuna is an herbivorous gastropod that uses its radula (a ribbon-like structure covered with variably-shaped "teeth") to scrape algae. This genus displays an unusual level of morphological variability in radular teeth, and Dr. Dianna Padilla proposes an exploratory research project aimed at establishing the causes of this variability. During a year of research planning, Dr. Padilla will use enzyme electrophoresis to establish species identities and evolutionary relationships. Controlled growth experiments using different food types will reveal the degree to which radular morphology varies within a brood, and the degree to which the physical nature of food items produces different radular variations. The proposed research will find a wide audience among developmental and evolutionary biologists, systematists, and ecologists. The various possible sources of morphological variation are factors in diverse research areas, but only a few studies such as Dr. Padilla's actually assess their relative contributions.

Lacuna属是一种草食性腹足动物， 齿舌（一种带状结构，覆盖着形状各异的 “牙齿”）刮藻类。 这一属显示出不同寻常的水平 齿舌的形态变异性， 帕迪利亚提出了一个探索性的研究项目，旨在 确定这种变化的原因。 在一年的 研究计划，帕迪利亚博士将使用酶电泳， 建立物种身份和进化关系。 使用不同食物类型的受控生长实验将 揭示了齿舌形态在一定程度上的变化， 育雏，以及食物的物理性质 产生不同的齿舌变化。 拟议中的研究将在以下方面找到广泛的受众： 发展和进化生物学家，系统论者， 生态学家 形态学的各种可能来源 变异是不同研究领域的因素，但只有少数 像帕迪利亚博士这样的研究实际上评估了他们的亲属 捐款.