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首页> 外文期刊>Systematic Botany >Species boundaries and phylogeographic patterns in cryptic taxa inferred from AFLP markers: Veronica subgen. Pentasepalae (Scrophulariaceae) in the Western Mediterranean
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Species boundaries and phylogeographic patterns in cryptic taxa inferred from AFLP markers: Veronica subgen. Pentasepalae (Scrophulariaceae) in the Western Mediterranean

机译：从AFLP标记：Veronica亚基因推断出的隐喻类群中的物种边界和植物谱模式。在地中海西部的五角星科（玄参科）

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摘要

We show the power of detailed AFLP study to address questions of species delimitation and genetic diversity in morphologically-cryptic plants. We have combined this technique with karyological studies to explore species boundaries in the Western Mediterranean representatives of Veronica subgen. Pentasepalae. Several members of this subgenus are represented in the Iberian Peninsula and North Africa by morphologically similar populations, which lead to different taxonomic hypotheses. We have analyzed genetic variation with two different objectives: first, to provide a basis on which one taxonomic hypothesis is favored against its alternatives, and second, to obtain a satisfactory interpretation of phylogeographic patterns. The usefulness of several parameters and analyses is considered in order to help rank taxa and to reveal details of their speciation modes. Some of these parameters are presented with a geographical background to facilitate phylogeographic interpretations. The data support one of the previously proposed taxonomic hypotheses, which results in the recognition of eight taxa. An east-to-west migration route within the Iberian Peninsula is hypothesized, coinciding with the general pattern proposed for Veronica subgen. Pentasepalae. Further data on genetic variability and chromosome counts for 41 populations are provided.
机译：我们展示了详细的AFLP研究的功能，可以解决形态隐患植物中物种界定和遗传多样性的问题。我们已将该技术与核学研究相结合，以探索西维罗尼卡亚种的西地中海地区的物种边界。五角星。该亚属的几个成员在伊比利亚半岛和北非以形态相似的种群为代表，这导致了不同的分类学假设。我们已经分析了具有两个不同目标的遗传变异：首先，提供一个有利于分类学假说反对其替代方案的基础，其次，获得对植物地理学模式的满意解释。考虑了几个参数和分析的有用性，以帮助对分类单元进行排名并揭示其物种形成模式的细节。这些参数中的某些参数具有地理背景，以方便系统地理学解释。数据支持先前提出的分类学假设之一，从而导致识别了八个分类单元。假定了伊比利亚半岛内的东西向迁移路线，这与为维罗妮卡亚基因提出的一般模式相吻合。五角星。提供了有关41个种群的遗传变异性和染色体计数的更多数据。

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