Gene Flow and Species Diversity in Deep Sea Hydrothermal Vent Communities

深海热液喷口群落的基因流和物种多样性

• 批准号: 9910799
• 负责人: Robert Vrijenhoek
• 金额: $ 36万
• 依托单位: Monterey Bay Aquarium Research Institute
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-09-01 至 2003-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9910799&HistoricalAwards=false
• 关键词: Gene; Flow; Species; Diversity; Deep

The investigators will conduct a suite of genetic studies aimed at increasing fundamental knowledge of gene flow and molecular systematics of organisms associated with mid-ocean ridge systems and cognate environments in the deep sea. Over the past decade, the investigators have amassed an extensive collection of specimens from fast-, intermediate-, and slow-spreading systems throughout the world's oceans. The primary objectives of this project are to extend ongoing studies of gene flow, genetic diversity, and evolutionary relationships to samples recently collected from the southern East Pacific Rise (7 degrees S - 32 degrees S latitude) and to continue studies of evolutionary relationships and biogeography of deep-sea hydrothermal vent and sulfide seep organisms throughout the world. In particular, the investigators will search for evidence of connections between the southern East Pacific Rise, the central Indian ridge system, and western Pacific back arc basins. Preliminary data indicate that there are several "morphospecies" at 31 degrees - 32 degrees S that may be related to, or conspecific with, named species for the western Pacific (Lau and Manus Back Arc Basins and Mariana Trough). This project should provide a comprehensive picture of ecological, geological, and evolutionary processes affecting the dominant invertebrate species that live in some of the most extreme environments on our planet. The biodiversity aspects of this research have been recognized with a supplementary award (NIH) to facilitate materials and technology transfer to parties interested in marine natural products discovery.

研究人员将进行一系列遗传学研究，旨在增加与洋中脊系统和深海同源环境相关的生物体的基因流和分子系统学的基础知识。 在过去的十年中，研究人员从世界各地海洋的快速、中速和慢速传播系统中收集了大量样本。 该项目的主要目标是将正在进行的基因流、遗传多样性和进化关系研究扩展到最近从东太平洋海隆南部（南纬 7 度 - 南纬 32 度）收集的样本，并继续研究进化关系和生物地理学世界各地的深海热液喷口和硫化物渗流生物。 特别是，调查人员将寻找东太平洋海隆南部、印度洋中脊系统和西太平洋弧后盆地之间联系的证据。 初步数据表明，南纬 31 度 - 32 度处有几种“形态种”可能与西太平洋的命名物种（劳和马努斯弧后盆地和马里亚纳海槽）相关或同种。 该项目应全面介绍影响生活在地球上一些最极端环境中的主要无脊椎动物物种的生态、地质和进化过程。 这项研究的生物多样性方面已获得补充奖（NIH）的认可，以促进向对海洋天然产品发现感兴趣的各方转让材料和技术。