Origin, evolution and adaptive radiation in the genus Micromeria Benth. (Lamiaceae) in Macaronesia

这个跨学科项目的主要目标是重建在马卡罗尼西亚群岛的Micromeria属（Lamiaceae）内的系统发育关系。目的：阐明该属在Satureja复合体中的地位，分析其遗传多样性、杂交、渐渗、基因流动模式和适应性辐射机制。种群遗传方法将用于评估扩散途径和岛间辐射与岛屿间殖民化的相对重要性，并测试各种小锥虫物种种群之间的遗传分化。这些测试将在几个尺度上进行：岛屿内、岛屿之间、生态区域内和区域之间。这种种群遗传方法与系统发育证据相结合，应使我们能够了解岛屿辐射和/或岛屿间殖民化在多大程度上帮助小麦里亚利用马卡罗尼西亚丰富的生态多样性。系统发育方法将采用核（ITS）和叶绿体DNA （trnL-trnF - IGS）测序；用于群体遗传研究的微卫星；issr指纹技术和可能的核单拷贝序列标记将被使用。

The main objectives of this interdisciplinary project are to reconstruct the phylogenetic relationships within the genus Micromeria (Lamiaceae) in the Macaronesian archipelago. To elucidate the status of the genus within the Satureja complex and to analyze the patterns of genetic diversity, hybridization, introgression, gene flow and mecchanisms of adaptive radiation. Population genetic methods will be used to assess the dispersal route and the relative importance of isnular radiation versus inter-island colonization and to test for genetic differentiation between populations of various Micromeria species. These tests will be performed at several scales: within islands, between islands, within ecological zones, and between zones. This population genetic approach, combined with phylogenetic evidence, should enable us to understand to what extent insular radiation and/or inter-island colonization have helped Micromeria in exploiting the rich ecological diversity in Macaronesia. For the phylogenetic approach sequencing of nuclear (ITS) and chloroplast DNA (trnL-trnF IGS) will be used; for population genetic studies microsatellites; ISSr-fingerprinting techniques, and possibly nuclear single-copy sequence markers will be used.