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，它使用其辐射（带有可变形状“牙齿”的带状结构）来刮藻。 该属显示了根部牙齿中形态变异性的异常水平，戴安娜·帕迪拉（Dianna Padilla）博士提出了一个探索性研究项目，旨在确定这种变异性的原因。 在研究一年的研究计划中，Padilla博士将使用酶电泳来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基部形态在育雏内变化的程度，以及食物的物理性质产生不同的根部变化的程度。 拟议的研究将在发展和进化生物学家，系统主义者和生态学家中找到广泛的受众。 形态变化的各种可能来源是不同研究领域的因素，但只有少数研究（例如Padilla博士）实际上评估了它们的相对贡献。