Dissertation Research: Evolutionary Genetics of Selective Preference and Gamete Competition in Drosophila

论文研究：果蝇选择偏好和配子竞争的进化遗传学

基本信息

批准号：
9902167
负责人：
Daniel Promislow
金额：
$ 0.8万
依托单位：
University of Georgia Research Foundation Inc
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1999
资助国家：
美国
起止时间：
1999-06-01 至 2001-05-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9902167&HistoricalAwards=false
关键词：
Dissertation Research Evolutionary Genetics Selective

项目摘要

Abstract9902167Sexual selection, the selective force that results from competition between males for access to mates, has received increasing attention in recent years. Researchers have uncovered a startling array of biological traits that males have evolved to enhance their success in obtaining mates. This study seeks to examine how females might influence the process of sexual selection, and in particular, the way in which sperm from multiple males compete within a female's reproductive tract in the fruit fly, Drosophila melanogaster. The first component of this study will examine how patterns of sperm competition vary among different female genotypes. The second component will look at the relationship between how attractive a male is and the ability of his sperm to compete with other males' sperm. The final component will determine whether males with experimentally reduced attractiveness have reduced sperm competitive ability, due to facultative responses in the female.While the male role in sexual selection has been examined extensively, far less is known of the female role. Typically, females have been considered as passive participants whose preferences and other reproductive behaviors vary little. In order to more fully understand reproductive decisions in general, we need to add a more complete understanding of the female perspective to what we already know about the mating decisions of males.

近年来，摘要9902167SEXALESSELES是男性竞争竞争竞争的选择性力量，近年来受到了越来越多的关注。研究人员发现了一系列令人震惊的生物学特征，这些生物学特征已经发展为增强其在获得伴侣方面的成功。这项研究旨在研究女性如何影响性选择过程，尤其是多个男性的精子在女性果蝇中果蝇果蝇中的生殖道中竞争的方式。这项研究的第一个组成部分将研究精子竞争模式在不同女性基因型之间的变化。第二个组成部分将研究男性的吸引力与精子与其他雄性精子竞争的能力之间的关系。最终的组成部分将确定由于女性的兼性反应，雄性是否具有实验性降低的吸引力降低了精子竞争能力。虽然已经对男性在性选择中的作用进行了广泛的研究，但对女性角色的了解却少得多。通常，女性被认为是被动参与者，他们的偏好和其他生殖行为差异很小。为了更充分理解生殖决策，我们需要将对女性的观点更完整地了解我们已经知道的男性交配决定。