NSF Postdoctoral Fellowship in Biology FY 2014

2014 财年 NSF 生物学博士后奖学金

• 批准号: 1401862
• 负责人: Mary Duryea
• 金额: $ 18.89万
• 依托单位: Duryea Mary C
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-09-01 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1401862&HistoricalAwards=false
• 关键词: NSF; Postdoctoral; Fellowship; Biology; FY

NSF Postdoctoral Fellowships in Biology combine research and training components to prepare young scientists for careers in biology and provide them an opportunity to establish international collaborations and take advantage of research facilities and opportunities abroad. Forging strong international collaborations is mutually beneficial to the U.S. and the foreign hosts. This fellowship to M. Catherine Duryea supports research and training on how molecular variation in female reproductive proteins plays out in reproductive success in nature. Color modifications in the blue-winged damselfly make it a unique experimental organism in which existing knowledge from the genetics of the fruit fly model system can be used to reveal how genetics and ecology combine to define populations and evolution. The host institution is Lund University in Sweden and the sponsoring scientist is Prof. Erik Svensson. Educational outreach involves local schools in Lund.In many organisms, reproductive proteins show signatures of rapid evolution and high levels of intraspecific variation, suggesting that an intersexual arms race, i.e., sexual conflict, is driving the evolution of these genes. However, very little is known about the ecological pressures that result in this genetic variation. This project investigates intraspecific variation in reproductive proteins in female damselflies. This system is ideal for such studies because females have three different body colors that are related to the rate of male harassment and can be used to infer the degree of conflict between the sexes. Through a combination of field and lab experiments this project identifies female reproductive proteins that are involved in mating, characterizes intraspecific variation in reproductive proteins, and investigates if there is any genomic signature of correlational selection among reproductive proteins and female color morph genes.

NSF生物学博士后研究金结合了研究和培训组成部分，以准备年轻的科学家从事生物学职业，并为他们提供了建立国际合作并利用国外研究设施和机会的机会。 建立强大的国际合作对美国和外国主持人互惠互利。 与凯瑟琳·杜里亚（M. Catherine Duryea）的奖学金支持有关女性生殖蛋白分子变异如何在自然界生殖成功中发挥作用的研究和培训。 蓝翅的豆腐中的颜色修饰使其成为一种独特的实验生物，其中从果蝇模型系统的遗传学中进行的现有知识可用于揭示遗传学和生态学如何结合以定义种群和进化。 东道国是瑞典的隆德大学，赞助科学家是埃里克·斯文森（Erik Svensson）教授。教育外展活动涉及隆德的当地学校。在许多生物体中，生殖蛋白显示出快速进化和高水平的种内变异的签名，这表明两性武器种族，即性冲突，正在推动这些基因的进化。但是，对于导致这种遗传变异的生态压力知之甚少。该项目研究了雌性大坝自我的生殖蛋白的种内变异。该系统是此类研究的理想选择，因为女性具有与男性骚扰率有关的三种不同的身体颜色，并且可用于推断性别之间的冲突程度。通过现场和实验实验的结合，该项目确定了与交配有关的女性生殖蛋白，表征了生殖蛋白的种内变异，并研究了是否存在生殖蛋白中生殖蛋白中摩洛联选择的基因组学特征和女性颜色变形基因。