Dissertation Research: Population Structure and Genetic Variation of the Yellow Fever Mosquito (Aedes aegypti) in Southeast Arizona

9801453埃及伊蚊，一种黄热病蚊子，也是登革热出血热的传播媒介，在被假定消灭了五十年后，在亚利桑那州东南部重新出现。拟议的研究将使用分子标记来检查该蚊子种群及其邻近种群的遗传结构，以确定确定这种入侵的遗传和/或历史因素。目前还不清楚埃及伊蚊是否最近重新在图森地区定居，或者它是否一直以非常低的频率存在，因为最近的条件已经成熟，人口扩张。如果是前者，得到的遗传数据将对入侵生物学领域有价值。在后一种情况下，关于从少数个体恢复种群的经验结果将对保护生物学家有用。此外，关于昆虫病媒的起源和迁移模式的信息将极大地有利于未来的根除计划。

9801453KidwellAedes aegypti, the yellow fever mosquito that also vectors dengue hemorrhagic fever, has reemerged in southeastern Arizona after fifty years of putative eradication. The proposed study will use molecular markers to examine the genetic structure of this population of mosquitoes, and that of neighboring populations, in order to determine the genetic and/or historical factors that define this invasion. It is not clear if A. aegypti has recently recolonized the Tucson area, or if it has been present all along at very low frequencies with recent conditions being ripe for a population expansion. If the former is the case, the resulting genetic data will have value to the field of invasion biology. In the latter case, empirical results regarding the recovery of a population from a small number of individuals will be useful to conservation biologists. Also, information about the origin and migration patterns of an insect disease vector should greatly benefit future eradication programs.