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.

这项研究将探索南极海洋底栖无脊椎动物的遗传学、多样性和生物地理，试图推翻人们普遍接受的底栖动物并不构成一个庞大的泛栖种群的观点。调查人员将从南极洲西部采样不足的地区采集成虫和幼虫样本，与现有样本相结合，将提供对南大洋西半球的重要覆盖。目标是：1)使用高分辨率遗传标记评估南极西部底栖无脊椎动物物种的遗传连接(或隔离)程度。2)开始探索贝灵豪森、阿蒙森和罗斯海底栖无脊椎动物浮游幼虫的空间和水深分布。3)继续开发南极海洋遗传清单(MAGI)，通过DNA条形码将幼虫和成虫联系起来。更广泛的影响包括传统形式的培训(博士后、研究生、本科生研究经验)和对K-12群体的讲座。