MOLECULAR AND QUANTITATIVE VARIATION IN AE ALBOPICTUS

白纹伊蚊的分子和数量变异

• 批准号: 6372889
• 负责人: PETER ARMBRUSTER
• 金额: $ 4.38万
• 依托单位: UNIVERSITY OF VERMONT & ST AGRIC COLLEGE
• 依托单位国家: 美国
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-11 至
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/6372889
• 关键词: Aedes; animal population density; animal population genetics; animal population study; arthropod genetics; climate; dengue virus; ecology; environmental adaptation; ethology

The goals of this proposal are to evaluate the genetic consequences of a rapid range expansion and to assess micro- habitat specialization within a species of disease carrying mosquito. The Asian tiger mosquito, Aedes albopictus, is an important vector of dengue fever and is also able to transmit yellow fever and a variety of native North American arboviruses. Aedes albopictus was introduced into the United States in the vicinity of Houston, TX, in the mid- 1980's, and its distribution now extends from Florida to Illinois and Ohio. Comparing within- and between-population variability among ancestral (TX) and derived (FL, OH) populations will elucidate how genetic drift, migration, and selection at linked loci have distributed variability during the range expansion of this species in North America. In order to assess molecular variation, AFLP markers will be developed and used to characterize population structure throughout North America, and between tire breeding and tree-hole breeding populations. Genetic variation and differentiation of quantitative characters central to the rapid invasion and climatic adaptation of this species in North America will be examined, and used to investigate the extent to which variation and differentiation of AFLP markers accurately predicts variation and differentiation of quantitative characters.

该提案的目标是评估快速范围扩张的遗传后果，并评估携带疾病的蚊子种类内的微栖息地专业化。 亚洲虎蚊白纹伊蚊是登革热的重要媒介，也能够传播黄热病和多种北美本土虫媒病毒。 白纹伊蚊于 20 世纪 80 年代中期在德克萨斯州休斯顿附近引入美国，目前其分布范围从佛罗里达州延伸到伊利诺伊州和俄亥俄州。 比较祖先（TX）和派生（FL，OH）种群之间的种群内和种群间变异性将阐明该物种在北美范围扩张期间连锁基因座的遗传漂变、迁移和选择如何分布变异性。 为了评估分子变异，将开发 AFLP 标记并用于表征整个北美地区以及轮胎育种群体和树洞育种群体之间的群体结构。 将检查对该物种在北美的快速入侵和气候适应至关重要的数量性状的遗传变异和分化，并用于研究 AFLP 标记的变异和分化在多大程度上准确预测数量性状的变异和分化。