RUI: Hormonal and Morphological Variation

RUI：激素和形态变化

• 批准号: 9506781
• 负责人: Nancy Staub
• 金额: $ 14.32万
• 依托单位: Gonzaga University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-08-01 至 2000-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9506781&HistoricalAwards=false
• 关键词: RUI; Hormonal; Morphological; Variation

9506781 Staub One of the intriguing questions in evolutionary biology is how do new traits arise. In several species of the salamander genus Aneides, females express features that typically are expressed only in males. Dr. Staub's research goal is to examine the hormonal basis for the normal expression of these traits in females. She will use both a comparative and experimental approach to investigate the relationship between hormonal and morphological variation. In the proposed project, differences between species and between males and females in jaw muscle sensitivity to male sex hormones (androgens) will be examined. In addition, hormone levels will be analyzed to determine seasonal patterns of androgens and estrogens. Results will be analyzed in an evolutionary framework with the goal of understanding how hormonal variation can explain the profound shape variation expressed within this salamander group. The significance of the proposed project is that it will provide information on the role of androgens in the development of female traits, a role that has remained relatively unexplored. ***

[506781]在进化生物学中，一个有趣的问题是新特征是如何产生的。在蝾螈属的一些物种中，雌性表现出通常只在雄性中表现出来的特征。斯托布博士的研究目标是研究这些特征在女性中正常表达的激素基础。她将使用比较和实验两种方法来研究激素和形态变化之间的关系。在拟议的项目中，将研究不同物种之间以及雄性和雌性之间颌骨肌肉对雄性性激素（雄激素）敏感性的差异。此外，还将分析激素水平，以确定雄激素和雌激素的季节性模式。结果将在进化框架中进行分析，目的是了解激素变化如何解释这种蝾螈群体中表达的深刻形状变化。拟议项目的意义在于，它将提供关于雄激素在女性特征发展中的作用的信息，这一作用相对而言尚未被探索。＊＊＊