Biogeography and genetic connectivity of members of the endofaunal gastropod family Naticidae in the Great Barrier Reef: Implications for their adaptive evolution, species patterns, and distribution"

“大堡礁内底动物腹足动物科 Naticidae 成员的生物地理学和遗传连通性：对其适应性进化、物种模式和分布的影响”

• 批准号: 159278911
• 负责人: Dr. Thomas Hülsken
• 金额: --
• 依托单位: School of Biological Sciences
• 依托单位国家: 德国
• 项目类别: Research Fellowships
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2013-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/159278911?language=en
• 关键词: Biogeography; genetic; connectivity; members; endofaunal

The aim of the project is to understand the adaptive evolution, speciation, and biogeographical pattern of the endofaunal gastropod family Naticidae by analyzing the correlation of gene flow with ecological factors and species composition within the Great Barrier Reef. Although there are some biogeographical genetic studies involving gastropod families, there has been no systematic sampling across multiple endofaunal species from the same locations. The multi-species approach applied here will allow searching for common patterns within the endofaunal gastropods of tropical benthic ecosystems. Only members of the family Naticidae are known to live exclusively within the sand and therefore represent an ideal model species group to identify boundaries that constrain gene flow between endofaunal gastropod populations to identify the basic processes underlying biogeographical patterns and adaptive evolution and may explain phylogenetic relationships of species. The analyses of soft substrate snails will provide important additional data and will improve our knowledge of the gene flow and ecology of marine invertebrates in a large scale. For this ecological, environmental, and molecular data will be obtained from several populations within the entire Great Barrier Reef. Using methods of landscape genetics and Geographical Information System (GIS) the resulting data will help to determine boundaries of gene flow and thus, the spatial origin of the naticid populations and their biogeographical pattern in the species-rich Indo-Pacific region that are of major interest for the preservation of natural populations in one of the most important centers of biodiversity on earth.

该项目的目的是通过分析大堡礁内基因流与生态因素和物种组成的相关性，了解内底动物腹足类Nativanae的适应性进化、物种形成和地理分布模式。虽然有一些涉及腹足类科的地理遗传学研究，但没有对同一地点的多个内底栖物种进行系统采样。这里采用的多物种方法将允许在热带底栖生态系统的内底动物腹足类中寻找共同的模式。只有家庭的成员，Nativanae是已知的，只生活在沙子，因此代表了一个理想的模式物种组，以确定边界，限制内底动物腹足类种群之间的基因流，以确定基本的地理模式和适应性进化的过程，并可能解释物种的系统发育关系。对软底质蜗牛的分析将提供重要的额外数据，并将大规模地提高我们对海洋无脊椎动物基因流和生态学的认识。为此，将从整个大堡礁的几个种群中获得生态，环境和分子数据。利用景观遗传学和地理信息系统（GIS）的方法，所得到的数据将有助于确定基因流的边界，从而确定在物种丰富的印度-太平洋地区的原生种群的空间起源及其地理格局，这对地球上最重要的生物多样性中心之一的自然种群的保护具有重大意义。