Testing the temporal assumption of Mayr's Geographic Speciation Model

0002213 Hrbek国际研究员奖励计划使美国科学家和工程师能够在国外进行三到二十四个月的研究。 该计划的奖项提供了联合研究的机会，并使用独特或互补的设施，专业知识和国外的实验条件。该奖项将提供支持博士托马斯Hrbek与博士阿克塞尔迈耶在德国康斯坦茨大学在一个名为“测试迈尔的地理物种形成模型的时间假设”的项目为期24个月。“该项目将使用鳉属Aphanius作为模型系统，以测试上新世-更新世地中海海平面波动，墨西拿盐度危机，与特提斯海关闭相关的造山事件以及安纳托利亚高原中部干燥影响的分布和形态假设。 迈尔的物种形成模型假设，一个物种的范围必须被分解成不连续的区域，它们之间只有很少或没有基因流动，以使物种形成。 Hrbek博士将使用分子数据生成Aphanius的遗传学，并将对Aphanius anatoliae物种复合体进行种群遗传学研究。 详细的分子分析将使他能够测试时间和空间过程，从而导致该属的多样化和物种形成模式。 这样的分析也将有助于这组鱼类的保护工作，这似乎是在其分布的许多地区濒临灭绝。主机实验室特别适合这个项目，有一个非常活跃的研究小组和广泛的专业接触与欧洲进化界。 该实验室还拥有广泛的基础设施和知识库。*

0002213HrbekThe International Research Fellow Awards Program enables U.S. scientists and engineers to conduct three to twenty-four months of research abroad. The program's awards provide opportunities for joint research, and the use of unique orcomplementary facilities, expertise and experimental conditions abroad.This award will provide Dr. Tomas Hrbek with support fortwenty-four months to work with Dr. Axel Meyer at the University of Konstanz in Germany on a project entitled "Testing the Temporal Assumption of Mayr's Geographic Speciation Model."This project will use the killifish genus Aphanius as a model system to test distributional and speciational hypotheses as impacted by the Plio-Pleistocene Mediterranean Sea level fluctuations, the Messinian salinity crisis, orogenic events associated with closing of the Tethys Sea, and the drying of the central Anatolian plateau. Mayr's model of speciation postulates that the range of a single species must be broken up into discontinuous regions, with little or no gene flow between them, in order for speciation to occur. Dr. Hrbek will use molecular data to generate a phylogeny of Aphanius and will do a population genetic study of the Aphanius anatoliae species complex. A detailed molecular analyses will allow him to test temporal and spatial processes leading to patterns of diversification and speciation which are exemplified in that genus. Such an analysis will also aid conservation efforts of this group of fishes, which appear to be endangered in many areas of their distribution.The host lab is especially well suited for this project, having a very active research group and an extensive professional contact with the European evolutionary community. The lab also has an extensive infrastructure and knowledge base.***