U.S.-Canada Colloborative Research: Dissecting behavioral isolation in nature: mate choice and the among-population divergence of signal traits and mate preferences

美国-加拿大合作研究：剖析自然界的行为隔离：配偶选择以及信号特征和配偶偏好的群体差异

• 批准号: 1132807
• 负责人: Kelly Dyer
• 金额: $ 4.96万
• 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: 2011
• 资助国家: 美国
• 起止时间: 2011-09-15 至 2014-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1132807&HistoricalAwards=false
• 关键词: U.S.; Canada; Colloborative; Research; Dissecting

In this international collaborative project researchers from U.S. and Canada will perform experiments to study the role of cuticular hydrocarbons (CHC) in species recognition and the maintenance of boundaries between two closely related species of mushroom-feeding flies, Drosophila subquinaria and Drosophila recens. Male contact pheromones consist of a suite of CHCs, and preliminary data suggests that these differ between the two species. Three specific aims will be pursued to test the hypothesis that male CHCs are the key signal traits that are used by females during mate choice and that underlie species discrimination, and that these traits and the female preferences for them have diverged among populations in response to reinforcing selection generated by the presence of the other species. The results of these studies will lay the groundwork for a long-term collaborative research program that will shed light on how behaviors diverge to generate reproductive isolation and ultimately speciation.Knowledge of the male signals and female preferences will inform hypotheses about whether the genetic basis of within vs. between species female discrimination is the same, and how simple vs. complex we expect these traits to be at the genetic level. The genetic basis of female discrimination and evolutionary genomics of species differentiation in these fly species might be more generally applicable to an understanding of the behavior, ecology, and genetics of reproductive isolation. The data resources will be made available to the community. This project will provide the opportunity to develop a long-term collaboration between early career researchers in the U.S. and Canada and will involve training of students in both laboratories, including women and ethnic minorities. Involvement of junior researchers, especially from groups underrepresented in science, in collaborative international activities is a major goal of OISE.

在这项国际合作项目中，来自美国和加拿大的研究人员将进行实验，以研究表皮碳氢化合物（CHC）在物种识别中的作用，并维持两种密切相关的蘑菇喂养蝇，果蝇亚果蝇和果蝇之间的边界之间的界限。 男性接触信息素由CHC组成，初步数据表明两种物种之间的不同。 将追求三个特定的目标，以检验男性CHC是女性在伴侣选择过程中使用的关键信号特征，并且是物种歧视的基础，并且这些特征和对女性的偏好在人群之间存在分歧，以应对其他物种的存在产生的增强选择。 这些研究的结果将为一项长期协作研究计划奠定基础，该计划将阐明行为如何产生生殖隔离并最终形成。男性信号和女性偏好的知识为假设提供了关于物种内部vs的遗传基础的假设，而女性歧视之间的遗传基础是相同的，我们期望这些遗传特征是遗传特征的水平。 这些蝇物种中物种分化的女性歧视和进化基因组学的遗传基础可能更普遍地适用于对生殖隔离的行为，生态和遗传学的理解。 数据资源将提供给社区。 该项目将提供一个机会，以建立美国和加拿大早期职业研究人员之间的长期合作，并将涉及对包括妇女和少数民族在内的两个实验室的学生进行培训。 初级研究人员的参与，尤其是来自科学领域的人数不足的团体，是OISE的主要目标。