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首页> 外文期刊>Israel Journal of Plant Sciences >Speciation processes in Eastern Mediterranean Orchis s.l. species:Molecular evidence and the role of pollination biology
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Speciation processes in Eastern Mediterranean Orchis s.l. species:Molecular evidence and the role of pollination biology

机译：东地中海Orchis s.l.的物种形成过程种：分子证据和授粉生物学的作用

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摘要

A molecular phylogenetic investigation, based on the internal transcribed spacers (ITS) of nuclear ribosomal DNA, was undertaken on members of Anacamptis, Orchis, Neotinea, and allied genera, focussing on taxa growing in the Near East and Eastern Europe, and especially in Israel. We found that Eastern Mediterranean orchids do not represent a monophylum, as they belong to all of the three genera into which Orchis s.l. has recently been divided. Although no general geographic distribution pattern may be inferred, some sister terminals either show a broad East/West distribution pattern across the Mediterranean or represent peripheral isolates from a more extended range. The evolution of some sibling species pairs seems to be related to the evolution of different pollination strategies. Anacamptis israelitica represents one of the rare cases of the existence of floral Batesian mimicry, while the endemic Orchis galilaea is the only species among the investigated taxa to be pollinated by sexual deceit, a strategy also implemented in the distant genus Ophrys. Differences in spur features occur between the Eastern Mediterranean Orchis anatolica and Anacamptis dinsmorei and their Western Mediterranean sister species; Anacamptis caspia closely resembles the eroica morphotype of the widespread Anacamptis papilionacea.
机译：对Anacamptis，Orchis，Neotinea和相关属的成员进行了基于核糖体DNA内部转录间隔子（ITS）的分子系统发育研究，重点是近东和东欧，尤其是以色列的类群生长。我们发现，地中海兰花不代表单片兰花，因为它们属于Orchis s.l.属的所有三个属。最近分裂了。尽管无法推断出一般的地理分布格局，但某些姊妹码头要么在整个地中海地区显示出广泛的东西方分布格局，要么代表范围更广的外围孤立地。一些同胞物种对的进化似乎与不同授粉策略的进化有关。 Anacamptis israelitica代表了花贝茨拟态存在的罕见案例之一，而特有的Orchis galilaea是被调查的类群中唯一被性欺骗授粉的物种，该策略也在遥远的Ophrys属中实施。东地中海Orchis anatolica和Anacamptis dinsmorei及其西地中海姊妹物种之间的杂散特征不同。 Anacamptis caspia与广泛分布的Anacamptis papilionacea的eroica形态相似。

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