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首页> 外文期刊>Taxon >Independent evolutionary history between the Balkan ranges and more northerly mountains in Campanula alpina s.l. (Campanulaceae): genetic divergence and morphological segregation of taxa.
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Independent evolutionary history between the Balkan ranges and more northerly mountains in Campanula alpina s.l. (Campanulaceae): genetic divergence and morphological segregation of taxa.

机译：巴尔干山脉和桔梗s.l.的更北的山脉之间的独立进化史。 （桔梗科）：分类单元的遗传差异和形态分离。

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摘要

Although the Balkan Peninsula belongs to the main European biodiversity centres, phylogeographical structure of its high-mountain flora and relationships with adjoining mountain systems remain almost unknown. Here, we analyse the evolutionary patterns in Campanula alpina s.l., which comprises C. alpina Jacq. (eastern Alps, Carpathians) and the mostly neglected, allopatric Balkan taxon C. orbelica Pancic. Using a range-wide sampling, two molecular marker systems (mostly nuclear AFLPs and chloroplast DNA sequences), flow cytometry and morphometric assessment, we (1) test earlier hypotheses assuming the impact of the Balkan lineages on the history of populations in the Alps and the Carpathians; (2) elucidate the long-lasting controversy concerning the taxonomic status of the populations in the Balkan Peninsula. The primary evolutionary break, evidenced by a substantial genetic differentiation, separated the Alpine/Carpathian and Balkan populations. Thus, the previously hypothesized influence of the Balkan gene pool on the present more northerly lineages (especially on a distinct phylogeographical group occurring in the southwestern Carpathians) was rejected. Bayesian phylogenetic analysis of cpDNA may support the Carpathians as the ancestral area within C. alpina from which the species reached the Alps, although strongly divergent AFLPs point at a relatively ancient time of this colonization. Molecular data and clear morphological segregation supported C. orbelica as a Balkan endemic species evolutionarily divergent from C. alpina. Both taxa are lectotypified, illustrated and morphologically characterized; their diagnostic characters are outlined.
机译：尽管巴尔干半岛属于欧洲主要的生物多样性中心，但其高山植物区系的植物地理结构以及与邻近山地系统的关系仍然鲜为人知。在这里，我们分析了由C. alpina Jacq组成的Campanula alpina s.l.的进化模式。 （东阿尔卑斯山，喀尔巴阡山脉）和大部分被忽略的，同种异体的巴尔干生物分类群C. orbelica Pancic。使用范围广泛的采样，两个分子标记系统（主要是核AFLP和叶绿体DNA序列），流式细胞术和形态计量学评估，我们（1）假设巴尔干谱系对阿尔卑斯山人口历史的影响，测试了较早的假设。喀尔巴阡山脉; （2）阐明有关巴尔干半岛人口的生物分类地位的长期争论。主要的进化断裂，由大量的遗传分化所证明，将高山/喀尔巴阡和巴尔干种群分隔开。因此，先前假设的巴尔干基因库对当前更北的谱系（特别是在西南喀尔巴阡山脉发生的独特的谱系）的影响被拒绝了。对cpDNA的贝叶斯系统发育分析可能支持喀尔巴阡山脉作为该物种到达阿尔卑斯山的阿尔卑斯山茶的祖先区域，尽管在该殖民时期相对较远的时候AFLP指向强烈。分子数据和清晰的形态分离结果支持C. orbelica是巴尔干特有物种，在进化上不同于C. alpina。两种分类单元均经过电化，图解和形态学表征;概述了它们的诊断特征。

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