Collaborative Research: Genetic connectivity and biogeographic patterns of Antarctic benthic invertebrates

合作研究：南极底栖无脊椎动物的遗传连通性和生物地理模式

• 批准号: 1043670
• 负责人: Andrew Mahon
• 金额: $ 11.64万
• 依托单位: Central Michigan University
• 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: 2011-08-15 至 2016-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1043670&HistoricalAwards=false
• 关键词: Collaborative; Research; Genetic; connectivity; biogeographic

The research will explore the genetics, diversity, and biogeography of Antarctic marine benthic invertebrates, seeking to overturn the widely accepted suggestion that benthic fauna do not constitute a large, panmictic population. The investigators will sample adults and larvae from undersampled regions of West Antarctica that, combined with existing samples, will provide significant coverage of the western hemisphere of the Southern Ocean. The objectives are: 1) To assess the degree of genetic connectivity (or isolation) of benthic invertebrate species in the Western Antarctic using high-resolution genetic markers. 2) To begin exploring planktonic larvae spatial and bathymetric distributions for benthic shelf invertebrates in the Bellinghausen, Amundsen and Ross Seas. 3) To continue to develop a Marine Antarctic Genetic Inventory (MAGI) that relates larval and adult forms via DNA barcoding. Broader impacts include traditional forms of training (postdocs, graduate studentships, undergraduate research experiences) and lectures to K-12 groups.

该研究将探讨南极海洋底栖无脊椎动物的遗传学，多样性和生物地理学，试图推翻底栖动物动物群不构成大型，泛滥人群的广泛接受的建议。 调查人员将从南极洲西部的不足采样区域采样成年人和幼虫，结合现有样品，将对南大洋的西半球提供显着覆盖。 目的是：1）使用高分辨率遗传标志物评估西南极西部底栖无脊椎动物物种的遗传连通性程度（或分离）。 2）开始探索Bellinghausen，Amundsen和Ross Seas的底栖架子无脊椎动物的浮游幼虫空间和测深的分布。 3）继续开发通过DNA条形码与幼虫和成人形式相关的海洋遗传清单（MAGI）。 更广泛的影响包括传统的培训形式（博士后，研究生学生，本科研究经验）和向K-12组的讲座。