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Validating biogeographical theory for protists: Distribution pattern in Europe

验证原生生物的生物地理学理论：欧洲的分布模式

基本信息

批准号：
327839085
负责人：
Professor Dr. Dirk Albach
金额：
--
依托单位：
Arbeitsgruppe Biodiversität und Evolution der Pflanzen
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2016
资助国家：
德国
起止时间：
2015-12-31 至 2019-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/327839085?language=en
关键词：
Validating biogeographical theory protists Distribution

项目摘要

Protists (eukaryotic microbes) fulfill critical ecological functions as they are the dominant primary producers in aquatic environments and, at the same time, are the major consumers of bacteria and thus at the basis of food webs. Further, protist diversity is tremendous but their distribution pattern are not well understood. While some taxa obviously are globally distributed, some other taxa are clearly endemic. It is highly controversial to what extent protist distribution follows the pattern observed for higher organisms. Doubts about the generalizability of biogeographic patterns as known for animals and plants to other organisms are highly appropriate! To that end, the post-glacial biogeography of Europe is an ideal test case for further testing the generalizability of biogeographic patterns in protists. High throughput sequencing now allows for lifting the fog: amplicon projects aim at tracking down diversity patterns. Thus, we propose to investigate protist distribution pattern in European freshwaters in light of the post-glacial distribution patterns of macro-organisms. We will address variation in protist diversity pattern in natural aquatic ecosystems and relate these changes to environmental factors based on plankton samples from 250 European lakes including lakes from Spain, France, Italy, Switzerland, Austria, Romania, Hungary, the Czech Republic, Slovakia, Poland, Sweden, Norway, Greece, Croatia and Bulgaria. Spatial analysis will be complemented by seasonal analysis of selected lakes within a central European gradient in order to separate seasonal from spatial pattern. The project will analyze biogeography, phylogeopgraphy and diversity of protist molecular diversity in European freshwater lakes at the community based on massive parallel sequencing data. Taken together the project will test the validity of general biological theories for microbial eukaryotes.

原生生物（真核微生物）履行关键的生态功能，因为它们是水生环境中占主导地位的初级生产者，同时也是细菌的主要消费者，因此是食物网的基础。此外，原生生物的多样性是巨大的，但他们的分布模式还没有得到很好的理解。虽然有些分类群显然是全球分布的，但其他一些分类群显然是地方性的。原生生物的分布在多大程度上遵循高等生物的分布模式，这是一个非常有争议的问题。怀疑已知的动植物的地理模式对其他生物的普遍性是非常恰当的！为此，欧洲的后冰川地理学是一个理想的测试案例，进一步测试原生生物地理学模式的普遍性。高通量测序现在允许解除迷雾：扩增子项目旨在追踪多样性模式。因此，我们建议调查在欧洲淡水原生生物的分布格局在冰川期后的大型生物的分布模式。我们将解决自然水生生态系统中原生生物多样性格局的变化，并将这些变化与环境因素的基础上，从250个欧洲湖泊，包括西班牙，法国，意大利，瑞士，奥地利，罗马尼亚，匈牙利，捷克共和国，斯洛伐克，波兰，瑞典，挪威，希腊，克罗地亚和保加利亚的湖泊浮游生物样本。空间分析将辅之以中欧梯度内选定湖泊的季节分析，以便将季节模式与空间模式分开。该项目将基于大量的平行测序数据分析欧洲淡水湖泊中的原生生物分子多样性的地理学、生物学和多样性。总之，该项目将测试微生物真核生物的一般生物学理论的有效性。